The following discussion should be read together with the Consolidated Financial Statements and the Notes to Consolidated Financial Statements, which are included in this Form 10-K in Item 8 and the information set forth in Risk Factors under Part 1, Item 1A.



INDEX                                                                                       PAGE
Current Business Outlook and   Strategy                                                     20
  Oil and Gas Segment                                                                       23
  Chemical Segment                                                                          32
  Midstream     and Marketing     Segment                                                   33
  Segment Results of Operations and   Items Affecting Comparability                         35
Income Taxes                                                                                38
  Consolidated Results of Operations                                                        39

  Liquidity and Capital Resources                                                           42
  Off-Balance Sheet Arrangements                                                            43
Commitments and Obligations                                                                 43
  Lawsuits, Claims, Commitments and Contingencies                                           44
  Environmental Liabilities and Expenditures                                                46
Global   Investments                                                                        48
  Critical Accounting Policies and Estimates                                                48
  Significant Accounting and Disclosure Changes                                             52
  Safe Harbor Discussion Regarding Outlook and Other Forward-Looking Data                   52



                                                            OXY 2020 FORM 10-K     19


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                    CURRENT BUSINESS OUTLOOK AND STRATEGY


GENERAL


Occidental's operations, financial condition, cash flows and levels of
expenditures are highly dependent on oil prices and, to a lesser extent, NGL and
natural gas prices, the Midland-to-Gulf-Coast oil spreads and the prices it
receives for its chemical products. The worldwide economy has been severely
impacted by the ongoing effects of the COVID-19 pandemic, which began during the
first quarter of 2020. In the first quarter, travel restrictions and
stay-at-home orders were implemented for much of the world to limit the spread
of COVID-19. Though certain restrictions have been lifted, some areas have
recently reinstated stay at home orders and oil and gas demand remains below
pre-pandemic levels. On April 12, 2020, certain members of the OPEC and 10
non-OPEC partner countries (OPEC+) agreed to production cuts intended to
mitigate the oil supply and demand imbalance to stabilize prices. On January 5,
2021, OPEC+ agreed to extend the cuts through March 2021. These production cuts
coupled with declining U.S. production helped mitigate the supply and demand
imbalance. While the spot WTI oil price has recovered to above $60.00/Bbl as of
the date of this filing, the average daily WTI oil price fell from $57.03/Bbl in
2019 to $39.40/Bbl in 2020 or 31 percent. We expect that the oil supply and
demand balance and consequently oil prices in the near-term will continue to be
influenced by the duration and severity of the COVID-19 pandemic; the
effectiveness and pace of the distribution of the recently approved vaccines;
and OPEC+ and U.S. production levels.

LIQUIDITY


In response to the dramatic drop in oil prices and the current macroeconomic
environment, Occidental has taken significant measures to increase its near and
mid-term liquidity and address near-term debt maturities. Specifically, during
2020 Occidental:

?Reduced its 2020 capital budget to $2.6 billion from a range of $5.2 billion to
$5.4 billion, a midpoint reduction of approximately 50%;
?Made significant cuts to its 2020 operating and corporate costs. On an
annualized basis, Occidental has realized $1.5 billion of overhead savings and
over $900 million in operating cost savings, of which a majority is expected to
remain permanent in future years;
?Reduced the quarterly common stock dividend to $0.01 per share from $0.79 per
share, effective July 2020, which on an annualized basis, will reduce its common
stock dividend outlay by approximately $2.9 billion;
?Elected to pay the preferred stock dividend paid in the second and third
quarters of 2020 in the form of shares of common stock, in lieu of cash,
preserving $400 million of liquidity. Occidental elected to pay the dividend
paid in the fourth quarter in cash. The Board of Directors will continue to
assess market conditions and Occidental's financial condition on a quarterly
basis to determine whether the preferred stock dividend will be paid in shares
of stock, in cash or a combination of shares of common stock and cash;
?Entered into a new receivable securitization facility that provides additional
liquidity of up to $400 million;
?Issued $7.0 billion in senior unsecured notes (the Senior Notes Offerings)
during 2020 to extend certain debt maturities in 2021-2023 to 2025-2031;
?Since the Acquisition, completed significant asset divestitures for net
proceeds of approximately $8.2 billion;
?Used the net proceeds from asset sales, cash on hand and Senior Notes Offerings
to retire or tender $6.0 billion of 2021, $2.7 billion of 2022 and $264 million
of 2023 maturities; and
?Exchanged approximately 27.9 million WES common units to retire a $260 million
note payable to WES due 2038.

In 2019, Occidental entered into three-way oil collar and call derivative
instruments to reduce its exposure to commodity price risk and increase the
predictability of near-term cash flows. The majority of the collars settled in
2020 with the receipt of cash of $960 million. The remaining $52 million settled
in 2021. See   Note     9     - Derivat    ives   in the Notes to Consolidated
Financial Statements in Part II, Item 8 of this Form 10-K.
Occidental believes the actions outlined above enhance its liquidity position to
fund its operations. Occidental will continue to evaluate the economic
environment, as well as the commodity price environment, and may make further
adjustments to its future levels of expenditures and operating and corporate
costs. However, the ultimate impact of the COVID-19 pandemic on Occidental's
results of operations, cash flows and financial position are unknown, and those
impacts could be material. Additionally, actions taken in response to the
current macro-environment may result in the long-term reduction of its capital
expenditure and production profile.

DEBT AND INTEREST RATE SWAPS
With the completion of the liquidity measures above, as of the date of this
filing, Occidental has debt maturities of approximately $371 million in 2021,
$2.1 billion in 2022 and $0.9 billion in 2023.
Occidental's $2.3 billion Zero Coupon senior notes due 2036 (Zero Coupons) can
be put to Occidental in October of each year, in whole or in part, for the then
accreted value of the outstanding Zero Coupons. An immaterial amount was put
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to Occidental in 2020. The Zero Coupons can next be put to Occidental in October
2021, which, if put in whole, would require a payment of approximately $1.0
billion at such date. Occidental currently has the intent and ability to meet
this obligation, including, if necessary, using amounts available under the
revolving credit facility (RCF) should the put right be exercised.
Interest rate swaps with a notional value of $750 million and fair value of $894
million, as of December 31, 2020, have mandatory termination dates in September
2021. Interest rate swaps with a notional value of $725 million and fair value
of $876 million, as of December 31, 2020, have mandatory termination dates in
September 2022 and 2023. The interest rate swaps fair value, and cash required
to settle them on their termination dates, will continue to fluctuate with
changes in interest rates through the mandatory termination dates.
As of December 31, 2020, Occidental had approximately $2.0 billion of cash and
cash equivalents on hand. As of the date of this filing, $5.0 billion of
borrowing capacity under its existing RCF, which matures in 2023. Occidental
continues to pursue divestitures of certain assets and intends to use the net
proceeds from asset sales and excess free cash flow to repay its nearer-term
debt maturities, but the expected timing and final proceeds from such asset
sales are uncertain. Occidental currently expects its cash on hand and funds
available under its RCF to be sufficient to meet its debt maturities, operating
expenditures and other obligations for the next 12 months from the date of this
filing. However, given the inherent uncertainty associated with the duration and
severity of the COVID-19 pandemic and its resulting impact on oil demand,
Occidental may need to raise capital to fund its operations and refinance debt
maturities.

DEBT RATINGS
In connection with the Senior Notes Offerings, Occidental's long-term debt
credit ratings were reviewed by the three major rating agencies. As of December
31, 2020, Occidental's long-term debt was rated BB by Fitch Ratings, Ba2 by
Moody's Investors Service and BB- by Standard and Poor's. Any additional
downgrade in credit ratings could impact Occidental's ability to access capital
markets and increase its cost of capital. In addition, given that Occidental's
current debt ratings are non-investment grade, Occidental may be requested, and
in some cases required, to provide collateral in the form of cash, letters of
credit, surety bonds or other acceptable support as financial assurance of its
performance and payment obligations under certain contractual arrangements such
as pipeline transportation contracts, environmental remediation obligations, oil
and gas purchase contracts and certain derivative instruments.
As of the date of this filing, Occidental has provided required financial
assurances through a combination of cash, letters of credit and surety bonds and
has not issued any letters of credit under the RCF or other committed
facilities. For additional information, see Risk Factors in Part I, Item 1A of
this Form 10-K.

IMPACT OF COVID-19 PANDEMIC TO GLOBAL OPERATIONS
Occidental is focused on protecting the health and safety of its employees and
contractors during the COVID-19 pandemic. Occidental has implemented workplace
restrictions in our offices and work sites for health and safety reasons.
Occidental has not incurred material costs as a result of new protocols and
procedures. Occidental continues to monitor national, state and local government
directives where Occidental has operations and/or offices. While Occidental has
not incurred any significant disruptions to its day-to-day operations as a
result of any workplace restrictions related to the COVID-19 pandemic to date,
the extent to which the COVID-19 pandemic adversely affects our business,
results of operations and financial condition will depend on future
developments, which are highly uncertain.

RECENT GOVERNMENTAL RULE MAKING AND EXECUTIVE ORDERS
In January 2021, the COGCC adopted new regulations that impose siting
requirements or "setbacks" on certain oil and gas drilling locations based on
the distance of a proposed well pad to occupied structures. Pursuant to the
regulations, well pads cannot be located within 500 feet of an occupied
structure without the consent of the property owner. As part of the permitting
process, the COGCC will consider a series of siting requirements for all
drilling locations located between 500 feet and 2,000 feet of an occupied
structure. Alternatively, the operator may seek a waiver from each owner and
tenant within the designated distance. While Occidental is currently evaluating
the impact of these regulations on its business, at this time, Occidental does
not anticipate significant near-term changes to our development program in the
DJ Basin based on these regulations. However, as a result certain of
Occidental's PUD reserves have been derecognized as they no longer meet the
regulatory certainty criteria to be considered proved reserves. Occidental's
ability to reestablish previously derecognized PUD reserves, as well as
establishing new PUD locations will depend upon Occidental establishing a
history of obtaining drilling permits under the new regulations and thus meeting
the SEC's "reasonably certain" threshold for adding PUD reserves. Occidental
currently believes it will be able to successfully navigate the new setback
guidelines.
An executive order was issued in January 2021, Tackling the Climate Crisis at
Home and Abroad, that mandated an indefinite pause on new oil and gas leasing on
federal lands, onshore and offshore, while a comprehensive review of oil and gas
permitting and leasing is conducted by the U.S. Department of the Interior. In
conducting this review, the Secretary of the Interior shall consider whether to
adjust royalties associated with oil and gas resources extracted from public
lands and offshore waters to account for corresponding climate costs.
In addition, effective January 20, 2021, the Department of the Interior issued
an order temporarily elevating the decision-making approval previously delegated
to the Department of the Interior's agencies and bureaus, including the BOEM and
the BLM, to issue any onshore and offshore fossil fuel authorization for,
including but not limited to a lease,
                                                            OXY 2020 FORM 

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amendment to a lease, affirmative extension of a lease, contract or other
agreement or permit to drill to the leadership of the Department of the
Interior.
Neither of these orders impact existing operations or permits for ongoing
operations under valid leases and does not preclude the issuances of leases,
permits and other authorizations. Both of these orders align with the new
governmental administration's commitment to addressing climate change,
specifically both orders allow for the Department of the Interior to consider
potential climate and other impacts associated with oil and gas activities on
public lands or in offshore waters.
Approximately 9% of Occidental's onshore net acres are on federal lands while
all of its Gulf of Mexico leases are in federal waters.
Occidental is continuing to evaluate the overall impact of these new regulatory
issuances on its oil and gas operations on federal leases and will reallocate
capital to non-federal leases to the extent there are delays in obtaining
permits and other authorizations that would alter the timing of development and
exploration programs on federal leases.

STRATEGY


Occidental is focused on delivering a unique shareholder value proposition with
its combined integrated asset portfolio, continual enhancements to its
organizational capability and commitment to implement innovative carbon
management and storage solutions for the reduction of greenhouse gas emissions.
Occidental conducts its operations with a focus on sustainability, health,
safety and environmental and social responsibility. Capital is employed to
operate all assets in a safe and environmentally sound manner. Occidental aims
to maximize shareholder returns through a combination of:

?Maximizing capital efficiency to sustain fourth quarter 2020 production levels
in order to maximize free cash flow;
?Prioritizing projects to decrease its carbon footprint and create a business
model to help other companies lower theirs;
?Reducing financial leverage; and
?Maintaining a robust liquidity position.

KEY PERFORMANCE INDICATORS
Occidental seeks to meet its strategic goals by continually measuring its
success against key performance indicators that drive total stockholder return.
In addition to efficient capital allocation and deployment discussed below in
"Oil and Gas Segment - Business Strategy", Occidental believes the following are
its most significant performance indicators:

SAFETY


?Injury Incidence Rate (IIR) and Days Away Restricted Transfer rate (DART) -
Occidental's combined employee and contractor IIR is determined by multiplying
the total number of Occupational Safety and Health Administration (OSHA)
recordable injuries and illnesses by 200,000 and dividing that result by the
total number of hours worked by all employees and contractors. The DART rate is
calculated in the same manner as IIR, but uses the number of incidents that
resulted in days away from work, job transfer, or restricted job duties instead
of the number of recordable injuries or illnesses.

OPERATIONAL


?Annual cost synergies - Post Acquisition, Occidental has focused on an
annualized reduction in overhead and operating expense strategies from the
historical amounts of Occidental and Anadarko, and exceeded its initial goal of
at least $1.1 billion by realizing $2.3 billion in total synergies and
additional cost savings on an annualized basis in 2020.
?Total spend per barrel - In 2021, Occidental will focus on controlling total
costs from a per-barrel perspective. Total spend per barrel is the sum of
capital spending, general and administrative expenses, other operating and
non-operating expenses and oil and gas lease operating costs divided by global
oil, NGL and natural gas sales volumes.

FINANCIAL


?Cash returns on capital employed (CROCE) - CROCE is calculated as (i) the cash
flows from operating activities, before changes in working capital, plus
distributions from WES, divided by (ii) the average of the opening and closing
balances of total equity plus total debt.
?Reduce financial leverage.

SUSTAINABILITY AND ENVIRONMENTAL
?Advancing specific Carbon Capture, Use and Sequestration projects;
?Net-zero operational and energy use emissions before 2040, with an ambition to
achieve before 2035;
?Net-zero total emissions inventory including product use with an ambition to
achieve before 2050; and
?Total carbon impact through carbon removal and storage technology and
development past 2050.

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                              OIL AND GAS SEGMENT



BUSINESS STRATEGY
Occidental's oil and gas segment focuses on long-term value creation and
leadership in sustainability, health, safety and the environment. In each core
operating area, Occidental's operations benefit from scale, technical expertise,
decades of high-margin inventory, environmental and safety leadership and
commercial and governmental collaboration. These attributes allow Occidental to
bring additional production quickly to market, extend the life of older fields
at lower costs and provide low-cost returns-driven growth opportunities with
advanced technology.
With the completion of the Acquisition, Occidental became one of the largest
U.S. producers of liquids, which includes oil, condensate and NGL, allowing
Occidental to maximize cash margins on a Boe basis. Since the Acquisition,
Occidental has focused on its divestiture program to divest of non-core assets
to pay down near-term debt maturities, however, the advantages that Occidental's
portfolio provides, coupled with unmatched subsurface characterization ability
and the proven ability to execute, ensures that Occidental is positioned for
full-cycle success in the years ahead. The oil and gas segment has realized
synergies to deliver lower breakeven costs and generate excess free cash flow.
Since the Acquisition, Occidental completed the sale of significant non-core
assets for net proceeds of approximately $8.2 billion.
Despite the pandemic impacts on commodity prices and the overall economy as
discussed above, Occidental's assets are strategically positioned to provide a
future portfolio of projects that are flexible and have short-cycle investment
paybacks. Together with Occidental's technical capabilities, the oil and gas
segment strives to achieve low development and operating costs to maximize
full-cycle value of the assets.
The oil and gas business implements Occidental's strategy primarily by:

?Operating and developing areas where reserves are known to exist and optimizing
capital intensity in core areas, primarily in the Permian Basin, DJ Basin, Gulf
of Mexico, UAE, Oman and Algeria;
?Maintaining a disciplined and prudent approach to capital expenditures with a
focus on high-return, short-cycle, cash-flow-generating opportunities and an
emphasis on creating value and further enhancing Occidental's existing
positions;
?Focusing Occidental's subsurface characterization and technical activities on
unconventional opportunities, primarily in the Permian Basin;
?Using EOR techniques, such as CO2, water and steam floods in mature fields; and
?Focusing on cost-reduction efficiencies and innovative technologies to reduce
carbon emissions.

In 2020, oil and gas capital expenditures were approximately $2.2 billion and
primarily focused on Occidental's assets in the Permian Basin, DJ Basin, Gulf of
Mexico and Oman.

OIL AND GAS PRICE ENVIRONMENT
Oil and gas prices are the major variables that drive the industry's financial
performance. The following table presents the average daily West Texas
Intermediate (WTI) and Brent prices for oil in dollars per barrel ($/Bbl) and
New York Mercantile Exchange (NYMEX) natural gas prices for 2020 and 2019:

                                                     2020         2019      % Change
                WTI Oil ($/Bbl)                 $ 39.40      $ 57.03          (31) %
                Brent Oil ($/Bbl)               $ 43.21      $ 64.18          (33) %
                NYMEX Natural Gas ($/Mcf)       $  2.11      $  2.67          (21) %


The following table presents Occidental's average realized prices for continuing operations as a percentage of WTI, Brent and NYMEX for 2020 and 2019:



                                                                     2020      2019
          Worldwide oil as a percentage of average WTI              95  %     99  %
          Worldwide oil as a percentage of average Brent (a)        87  %     88  %
          Worldwide NGL as a percentage of average WTI              32  %     30  %
          Worldwide NGL as a percentage of average Brent (a)        29  %     27  %
          Domestic natural gas as a percentage of NYMEX             56  %     49  %


(a)Prior period percentages have been adjusted to reflect the Algeria operations
as continuing operations.

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Prices and differentials can vary significantly, even on a short-term basis,
making it difficult to predict realized prices with a reliable degree of
certainty.
As a result of the expected prolonged period of lower commodity prices brought
on by the COVID-19 pandemic's impact on oil demand, Occidental tested
substantially all of its oil and gas assets for impairment during the second
quarter of 2020. Occidental recognized pre-tax impairment charges of $6.4
billion related to continuing operations and $2.2 billion related to
discontinued operations for the three months ended June 30, 2020. While oil
prices have modestly improved since the second quarter of 2020, if there was a
worsening of the macroeconomic conditions caused by the impacts of COVID-19 and
if such worsened condition was expected to be prolonged, Occidental's oil and
gas properties may be subject to further testing for impairment, which could
result in additional non-cash asset impairments, and such impairments could be
material to our financial statements.

DOMESTIC INTERESTS
BUSINESS REVIEW
Occidental conducts its domestic operations through land leases, subsurface
mineral rights it owns, or a combination of both. Occidental's domestic oil and
gas leases have a primary term ranging from one to 10 years, which is extended
through the end of production once it commences. Occidental has leasehold and
mineral interests in 9.5 million net acres, of which approximately 52% is
leased, 24% is owned subsurface mineral rights and 24% is owned land with
mineral rights.
The following chart shows Occidental's domestic production volumes for the
previous three years in thousand barrels of oil equivalent (Mboe) per day:
[[Image Removed: oxy-20201231_g3.jpg]]
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  [[Image Removed: oxy-20201231_g1.jpg]]    MANAGEMENT'S DISCUSSION AND ANALYSIS



DOMESTIC ASSETS (a)
                                          1. Powder River Basin

[[Image Removed: oxy-20201231_g4.jpg]] 2. DJ Basin


                                          3. Permian Basin
                                          4. Gulf of Mexico

(a)Map represents geographic outlines of the respective basins.

The Permian Basin
The Permian Basin extends throughout West Texas and southeast New Mexico and is
one of the largest and most active oil basins in the United States, accounting
for more than 36% of total United States oil production in 2020.
Occidental manages its Permian Basin operations through two business units:
Permian Resources, which includes unconventional opportunities, and Permian EOR,
which utilizes EOR techniques such as CO2 floods and waterfloods. Occidental has
a leading position in the Permian Basin, producing approximately 13% of total
oil in the basin. By exploiting the natural synergies between Permian Resources
and Permian EOR, Occidental is able to deliver unique short- and long-term
advantages, efficiencies and expertise across its Permian Basin operations.
Permian Resources unconventional oil development projects provide very
short-cycle investment payback, averaging less than two years, and generate some
of the highest margin and returns of any oil and gas projects in the world.
These investments contribute cash flow, while increasing long-term value and
sustainability through higher return on capital employed. Occidental's oil and
gas operations in Permian Resources include approximately 1.6 million net acres.
In 2020, new well design and flowback methods were implemented, which helped
lower the overall well cost while improving recovery. Overall in 2020, Permian
Resources produced approximately 435 Mboe/d from approximately 6,000 gross
wells. Additionally in 2020, Permian Resources added 122 million barrels of oil
equivalent (MMboe) to Occidental's proved reserves for improved recovery
additions.
The Permian Basin's concentration of large conventional reservoirs, favorable
CO2 flooding performance and the expansive CO2 transportation and processing
infrastructure has resulted in decades of high-value enhanced oil production.
With 34 active CO2 floods and over 40 years of experience, Occidental is the
industry leader in Permian Basin CO2 flooding, which can increase ultimate oil
recovery by 10% to 25%. Technology improvements, such as the recent trend toward
vertical expansion of the CO2 flooded interval into residual oil zone targets,
continue to yield more recovery from existing projects. Occidental's share of
production from Permian EOR was approximately 140 Mboe/d in 2020.
Significant opportunities also remain to gain additional recovery by expanding
Occidental's existing CO2 projects into new portions of reservoirs that have
only been water-flooded. Permian EOR has a large inventory of future CO2
projects, which could be developed over the next 20 years or accelerated,
depending on market conditions. In addition, OLCV continues making progress
towards supplying anthropogenic, or man-made, CO2 for the purpose of carbon
capture, utilization and storage in Occidental's Permian EOR operations.
In 2020, Occidental spent approximately $1.1 billion of capital in the Permian
Basin, of which over 87% was spent on Permian Resources assets. Also in 2020,
Occidental divested of certain non-core, largely non-operated acreage in the
Permian Basin. In 2021, Occidental expects to allocate approximately 38% of its
worldwide capital budget to the Permian Basin.
                                                            OXY 2020 FORM 

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DJ Basin
Occidental remains Colorado's top oil and gas producer with interest in
approximately 0.7 million net acres in Colorado. Production is derived from
2,500 operated vertical wells and 2,100 operated horizontal wells primarily
focused in 460,000 net acres in the Niobrara and Codell formations. The DJ Basin
provides competitive economics, low breakeven costs and free cash flow
generation.
Occidental produced approximately 293 Mboe/d in the DJ Basin in 2020. Horizontal
drilling results in the field continue to be strong, with improved operational
efficiencies in drilling and completions. In 2020, Occidental drilled 65
operated horizontal wells and completed 117 operated horizontal wells.
Occidental is currently fully permitted for all planned 2021 completions
activity and has received drilling permits for all planned drilling activity
through the first half of 2021. New statewide regulations were adopted in the
fourth quarter of 2020 and became effective in mid-January 2021. Occidental's
focus for 2021 is continuing to build operational inventory while implementing
the new regulations and maintaining social licenses to operate. Occidental
additionally continues to have development optionality by flexing resources
between the DJ Basin and another emerging high rate-of-return program in the
Powder River Basin.
As discussed above, in January 2021, the COGCC adopted new regulations that
impose siting requirements or "setbacks" on certain oil and gas drilling
locations based on the distance of a proposed well pad to occupied structures.
While Occidental is currently evaluating the impact of these regulations on its
business; at this time, Occidental does not anticipate significant near-term
changes to our development program in the DJ Basin based on these regulations.
However, if Occidental is unable to obtain new drilling permits to develop a
significant portion of the company's undeveloped acreage in the DJ Basin, the
company's DJ Basin assets may be subject to testing for impairment, and if
deemed to be impaired, such impairment could be material to our financial
statements.

Other Domestic
Occidental holds approximately 5.0 million net acres in other domestic
locations, which is primarily comprised of the Powder River Basin, North DJ
Basin and Wyoming. Occidental's share of production in other domestic locations
was approximately 39 Mboe/d in 2020.

OFFSHORE DOMESTIC ASSETS
Gulf of Mexico
Occidental owns a working interest in 182 blocks in the Gulf of Mexico, operates
10 active floating platforms and holds interests in 17 active fields. The Gulf
of Mexico produced approximately 130 Mboe/d during 2020. In 2021, Occidental
will continue to take advantage of its extensive infrastructure across the Gulf
of Mexico to execute its long-term plan for development and exploration.
Occidental will operate one floating drillship and one platform rig together
with two multi-service vessels to cost effectively develop known resources.
Occidental continues to work with the BSEE and the BOEM to address the
additional regulatory requirements to ensure a minimal disruption of activities
in the Gulf of Mexico.
The following table shows areas of continuing development in the Gulf of Mexico
along with the corresponding working interest in those areas.

                                            Working Interest
                        Horn Mountain                 100  %
                        Holstein                      100  %
                        Marlin                        100  %
                        Lucius                         64  %
                        K2 Complex                     42  %
                        Caesar Tonga                   34  %
                        Constellation                  33  %



INTERNATIONAL INTERESTS
BUSINESS REVIEW
Occidental conducts its ongoing international operations in two sub-regions: the
Middle East and Africa. Its activities include oil, NGL and natural gas
production through direct working-interests and production sharing contracts
(PSC).

Production Sharing Contracts
Occidental's interest in Oman and Qatar are subject to PSCs. Under such
contracts, Occidental records a share of production and reserves to recover
certain development and production costs and an additional share for profit.
These contracts do not transfer any right of ownership to Occidental and
reserves reported from these arrangements are based on
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Occidental's economic interest as defined in the contracts. Occidental's share
of production and reserves from these contracts decreases when product prices
rise and increases when prices decline. Overall, Occidental's net economic
benefit from these contracts is greater when product prices are higher.
The following chart shows Occidental's international production volumes for the
previous three years:
[[Image Removed: oxy-20201231_g5.jpg]]
Note: Operations sold, exited or held for sale include the Ghana assets (held
for sale at December 31, 2020 and 2019), the Colombia onshore assets (sold in
December 2020) and the Qatar Idd El Shargi Fields (exited in 2019).

MIDDLE EAST / NORTH AFRICA ASSETS


                                          1.Algeria

                                          2.Oman

[[Image Removed: oxy-20201231_g6.jpg]]


                                          3.Qatar

                                          4.United Arab Emirates



Algeria
In April 2020, subsequent to communications with Algerian government officials,
Occidental determined that the sale of the Algeria operations to Total would not
be consummated and the decision was made to continue to operate within Algeria.
As a result, Occidental reclassified 2019 results to reflect the Algeria
operations as continuing operations. Operations in Algeria involve production
and development activities in 18 fields within Blocks 404A and 208, which are
located in the Berkine Basin in Algeria's Sahara Desert and are governed by a
Production Sharing Agreement (PSA) between Occidental, Sonatrach and other
partners. Under this PSA, Occidental is responsible for 24.5% of the development
and production costs. The El Merk Central Processing Facility (CPF) in Block 208
processed produced oil and NGL, while the Hassi Berkine
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South and Ourhoud CPFs in Block 404A processed produced oil. In 2020, Occidental drilled two development wells and plans to continue drilling operations throughout 2021. Net production in Algeria was 44 Mboe/d in 2020.

Oman


In Oman, Occidental is the operator of Block 9 with a 50% working interest,
Block 27 with a 65% working interest, Block 53 with a 47% working interest and
Block 62 with a 100% working interest. Occidental additionally has exploration
and production sharing agreements for Blocks 30, 51, 65 and 72. Occidental holds
6.0 million gross acres and has 10,000 potential well inventory locations. In
2020, Occidental's share of production was 85 Mboe/d.
The Block 9 contract expires in 2030 and the Block 27 contract expires in 2035.
Occidental's share of production for Blocks 9 and 27 was 30 Mboe/d and six
Mboe/d in 2020, respectively. The Block 53 (Mukhaizna Field) contract expires in
2035 and is a major world-class pattern steam flood project for EOR that
utilizes some of the largest mechanical vapor compressors ever built. Since
assuming operations in Mukhaizna in 2005, Occidental has drilled over 3,550 new
wells and has increased gross production by over 15 fold. Occidental's share of
production for Block 53 was 30 Mboe/d in 2020. Subject to a declaration of
commerciality, Occidental's permit for Block 62 will expire in 2028.
Occidental's share of production for Block 62 was 19 Mboe/d in 2020.

Qatar


In Qatar, Occidental partners in the Dolphin Energy Project, an investment that
is comprised of two separate economic interests. Occidental has a 24.5% interest
in the upstream operations (Dolphin) to develop and produce NGL, natural gas and
condensate from Qatar's North Field through mid-2032. Occidental also has a
24.5% interest in Dolphin Energy Limited, which operates a pipeline and is
discussed further in the Midstream and Marketing Segment section in this Form
10-K under Pipeline. Occidental's net share of production from the Dolphin
upstream operations was 44 Mboe/d in 2020.

United Arab Emirates
In 2011, Occidental acquired a 40% participating interest in the Shah gas field
(Al Hosn Gas), joining with the Abu Dhabi National Oil Company (ADNOC) in a
30-year joint venture agreement. In 2020, Occidental's share of production from
Al Hosn Gas was 238 MMcf/d of natural gas and 38 Mboe/d of NGL and condensate.
Al Hosn Gas includes gas processing facilities which are discussed further in
the Midstream and Marketing Segment section in this Form 10-K under Gas
Processing, Gathering and CO2.
In 2019 and 2020, Occidental acquired 9-year exploration concessions and,
subject to a declaration of commerciality, 35-year production concessions
adjacent to Al Hosn Gas for onshore Block 3 and Block 5, which cover an area of
approximately 1.5 million acres and 1.0 million acres, respectively. Occidental
conducts a majority of its Middle East business development activities through
its office in Abu Dhabi, which also provides various support functions for
Occidental's Middle East oil and gas operations.

Ghana - Discontinued Operations
In May 2020, Occidental and Total mutually agreed to execute a waiver of the
obligation to purchase and sell the Ghana assets, so that Occidental could begin
marketing the sale of the Ghana assets to other third parties. Occidental is
currently marketing the Ghana assets. The assets and liabilities for Ghana
remain presented as held for sale in discontinued operations at December 31,
2020. Ghana operations include production and development activities located
offshore in the West Cape Three Point Block and the Deepwater Tano Block.
Occidental's share of production in 2020 was 30 Mboe/d.

LATIN AMERICA ASSETS
Colombia
In December 2020, Occidental completed the sale of its Colombia onshore assets,
specifically the operations and working interests in the Llanos Norte, Middle
Magdalena and Putumayo Basins. Occidental has retained a presence with
exploration blocks offshore Colombia.

PROVED RESERVES
Proved oil, NGL and natural gas reserves were estimated using the unweighted
arithmetic average of the first-day-of-the-month price for each month within the
year, unless prices were defined by contractual arrangements. Oil, NGL and
natural gas prices used for this purpose were based on posted benchmark prices
and adjusted for price differentials including gravity, quality and
transportation costs.
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The following table shows the 2020, 2019 and 2018 calculated
first-day-of-the-month average prices for both WTI and Brent oil prices, as well
as the Henry Hub gas prices measured in million British thermal units (MMbtu):

                                                        2020         2019         2018
             WTI Oil ($/Bbl)                       $ 39.57      $ 55.69      $ 65.56
             Brent Oil ($/Bbl)                     $ 43.41      $ 63.03      $ 72.20
             Henry Hub Natural Gas ($/MMbtu)       $  1.98      $  2.58      $  3.10
             Mt. Belvieu NGL ($/Bbl) (a)           $ 18.74            N/A          N/A

(a)Mt. Belvieu pricing was added as an NGL benchmark beginning in 2020. Prior to 2020, WTI oil was used as a benchmark for NGL.



Occidental had proved reserves from continuing operations at year-end 2020 of
2,911 MMboe, compared to the year-end 2019 amount of 3,904 MMboe. Proved
developed (PD) reserves represented approximately 78% and 77% of Occidental's
total proved reserves at year-end 2020 and 2019, respectively. The following
table shows the breakout of Occidental's proved reserves from continuing
operations by commodity as a percentage of total proved reserves:

                                                  2020      2019
                              Oil                51  %     52  %
                              Natural gas        29  %     29  %
                              NGL                20  %     19  %



Occidental does not have any reserves from non-traditional sources. For further
information regarding Occidental's proved reserves, see the Supplemental Oil and
Gas Information section in Item 8 of this Form 10-K.

CHANGES IN PROVED RESERVES
Occidental's total proved reserves from continuing operations decreased 993
MMboe in 2020, which was primarily driven by price and other revisions of 484
MMboe and asset divestitures of 241 MMboe. These decreases were partially offset
by increases from Occidental's development program of 212 MMboe. Changes in
reserves were as follows:

MMboe                                     2020
Revisions of previous estimates         (484)
Improved recovery                        190
Extensions and discoveries                22
Purchases                                  4
Sales                                   (241)
Production                              (484)
Total                                   (993)



Occidental's ability to add reserves, other than through purchases, depends on
the success of improved recovery, extension and discovery projects, each of
which depends on reservoir characteristics, technology improvements and oil and
natural gas prices, as well as capital and operating costs. Many of these
factors are outside management's control and may negatively or positively affect
Occidental's reserves.

Revisions of Previous Estimates
Revisions can include upward or downward changes to previous proved reserve
estimates for existing fields due to the evaluation or interpretation of
geologic, production decline or operating performance data. In addition, product
price changes affect proved reserves recorded by Occidental. For example, lower
prices may decrease the economically recoverable reserves, particularly for
domestic properties, because the reduced margin limits the expected life of the
operations. Offsetting this effect, lower prices increase Occidental's share of
proved reserves under PSCs because more oil is required to recover costs.
Conversely, when prices rise, Occidental's share of proved reserves decreases
for PSCs and economically recoverable reserves may increase for other
operations. Reserve estimation rules require that estimated ultimate recoveries
be much more likely to increase or remain constant than to decrease, as changes
are made due to increased availability of technical data.
In 2020, Occidental's revisions of previous estimates of proved reserves were
negative 484 MMboe, of which approximately 342 MMboe were negative price
revisions. The negative price revisions were primarily associated with the
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Permian Basin (283 MMboe) and the DJ Basin (74 MMboe), which were partially
offset by positive price revisions of 36 MMboe on international production
sharing contracts.
An additional 197 MMboe of negative revisions were related to management changes
in development plans due to lower average commodity prices compared to the prior
year and the reallocation of capital to higher return projects. These changes
were primarily associated with the Permian Basin (143 MMboe).
Further positive revisions of 57 MMboe, net, were associated with updates based
on reservoir performance. The remaining revisions were associated with various
other cost related revisions.

Improved Recovery
In 2020, Occidental added proved reserves of 190 MMboe related to improved
recovery primarily due to additional development drilling, mainly in the Permian
Basin which accounted for approximately two-thirds of the reserve additions.
These properties comprise both unconventional projects and conventional
projects, which are characterized by the deployment of EOR development methods,
largely employing application of CO2 flood, waterflood or steam flood and
unconventional projects. These types of conventional EOR development methods can
be applied through existing wells, though additional drilling is frequently
required to fully optimize the development configuration. Waterflooding is the
technique of injecting water into the formation to displace the oil to the
offsetting oil production wells. The use of either CO2 or steam flooding depends
on the geology of the formation, the evaluation of engineering data,
availability and cost of either CO2 or steam and other economic factors. Both
techniques work similarly to lower viscosity causing the oil to move more easily
to the producing wells. Many of Occidental's projects, including unconventional
projects, rely on improving permeability to increase flow in the wells. In
addition, some improved recovery comes from drilling infill wells that allow
recovery of reserves that would not be recoverable from existing wells. Further
positive additions of 32 MMboe in the UAE, 13 MMboe in Oman, 9 MMboe in the DJ
Basin and 9 MMboe in the Gulf of Mexico were similarly the result of development
drilling.

Extensions and Discoveries
Occidental also added proved reserves from extensions and discoveries, which are
dependent on successful exploration and exploitation programs. In 2020,
extensions and discoveries added 22 MMboe primarily related to the recognition
of proved reserves in the DJ Basin, Wyoming and Oman.

Purchases of Proved Reserves
In 2020, Occidental purchased proved reserves of 4 MMboe primarily consisting of
proved reserves in the Permian Basin.

Sales of Proved Reserves
In 2020, Occidental sold 241 MMboe in proved reserves, primarily related to the
divestitures of the Colombia onshore assets, the mineral acres and fee surface
acres located in Wyoming, Colorado and Utah and the non-core, largely
non-operated acreage in the Permian Basin.

Proved Undeveloped Reserves Occidental had proved undeveloped reserves at year-end 2020 of 645 MMboe, compared to the year-end 2019 amount of 905 MMboe. Changes in proved undeveloped reserves were as follows:



MMboe                                         2020
Revisions of previous estimates             (253)
Improved recovery                            132
Extensions and discoveries                     6
Purchases                                      3
Sales                                        (44)
Transfer to proved developed reserves       (104)
Total                                       (260)



Total improved recovery additions of 132 MMboe were primarily the result of
additional development drilling in the Permian Basin (80 MMboe), international
assets (41 MMboe) and the DJ Basin (7 MMboe). The 2020 additions to proved
undeveloped reserves were offset by transfers to proved developed reserves and
negative revisions of previous estimates. Transfers to proved developed reserves
were a total of 104 MMboe. The transfers were primarily associated with the DJ
Basin (53 MMboe) and the Permian Basin (48 MMboe). Revisions of previous
estimates were a negative 253 MMboe. Approximately 123 MMboe of the negative
revisions were related to management changes in development plans, primarily
associated with the Permian Basin (111 MMboe). Additionally, the revisions
include preliminary impacts related to the
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January 2021 COGCC regulation in the DJ Basin. Further, 77 MMboe of negative
revisions were associated with updates based on reservoir performance and 55
MMboe of negative revisions were associated with price revisions.
Proved undeveloped reserves are supported by a five-year detailed field-level
development plan, which includes the timing, location and capital commitment of
the wells to be drilled. Only proved undeveloped reserves which are reasonably
certain to be drilled within five years of booking and are supported by a final
investment decision to drill them are included in the development plan. A
portion of the proved undeveloped reserves associated with international
operations are expected to be developed beyond the five years and are tied to
approved long-term development projects.
In 2020, Occidental incurred approximately $0.5 billion to convert proved
undeveloped reserves to proved developed reserves. Given the impact of the
COVID-19 pandemic on demand and cash flows, Occidental reduced its 2020 capital
expenditures from $5.2 billion to $2.6 billion and; accordingly, converted a
lower than expected amount of reserves from proved undeveloped reserves to
proved developed reserves. In 2020 Occidental converted approximately 17% of its
PUDs to proved developed, when adjusted for revisions and sales. As of December
31, 2020, Occidental had 645 MMboe of PUDs of which 49% were associated with
domestic onshore, 8% with Gulf of Mexico and 43% with international assets.
Occidental's most active development areas are located in the Permian Basin,
which represented 36% of the proved undeveloped reserves as of December 31,
2020. Approximately 40% of Occidental's 2021 capital program of $2.9 billion is
allocated to the development program in the Permian Basin. Overall, Occidental
plans to spend approximately $1.5 billion over the next five years to develop
its proved undeveloped reserves in the Permian Basin.
At December 31, 2020, Occidental had 207 MMboe of pre-2016 proved undeveloped
reserves that remained undeveloped. These proved undeveloped reserves relate to
approved long-term development plans, 187 MMboe of which are associated with
international development projects with physical limitations in existing gas
processing capacity and 20 MMboe associated with certain Permian EOR projects.
Occidental remains committed to these projects and continues to actively
progress the development of these volumes. In addition to the above, Occidental
has 89 MMboe of proved undeveloped reserves that are scheduled to be developed
more than five years from their initial date of booking. These proved
undeveloped reserves are primarily related to approved long-term development
plans with physical limitations in existing gas processing capacity, 51 MMboe of
which are associated with other Permian EOR projects and 31 MMboe associated
with international development projects.

RESERVES EVALUATION AND REVIEW PROCESS
Occidental's estimates of proved reserves and associated future net cash flows
as of December 31, 2020, were made by Occidental's technical personnel and are
the responsibility of management. The estimation of proved reserves is based on
the requirement of reasonable certainty of economic producibility and funding
commitments by Occidental to develop the reserves. This process involves
reservoir engineers, geoscientists, planning engineers and financial analysts.
As part of the proved reserves estimation process, all reserve volumes are
estimated by a forecast of production rates, operating costs and capital
expenditures. Price differentials between benchmark prices (the unweighted
arithmetic average of the first-day-of-the-month price for each month within the
year) and realized prices and specifics of each operating agreement are then
used to estimate the net reserves. Production rate forecasts are derived by a
number of methods, including estimates from decline curve analysis, type curve
analysis, material balance calculations that take into account the volumes of
substances replacing the volumes produced and associated reservoir pressure
changes, seismic analysis and computer simulation of the reservoir performance.
These reliable field-tested technologies have demonstrated reasonably certain
results with consistency and repeatability in the formation being evaluated or
in an analogous formation. Operating and capital costs are forecast using the
current cost environment applied to expectations of future operating and
development activities.
Net proved developed reserves are those volumes that are expected to be
recovered through existing wells with existing equipment and operating methods
for which the incremental cost of any additional required investment is
relatively minor.
Net proved undeveloped reserves are those volumes that are expected to be
recovered from new wells on undrilled acreage, or from existing wells where a
relatively major expenditure is required for recompletion. Proved undeveloped
reserves are supported by a five-year, detailed, field-level development plan,
which includes the timing, location and capital commitment of the wells to be
drilled. The development plan is reviewed and approved annually by senior
management and technical personnel. Annually, a detailed review is performed by
Occidental's Worldwide Reserves Group and its technical personnel on a
lease-by-lease basis to assess whether proved undeveloped reserves are being
converted on a timely basis within five years from the initial disclosure date.
Any leases not showing timely transfers from proved undeveloped reserves to
proved developed reserves are reviewed by senior management to determine if the
remaining reserves will be developed in a timely manner and have sufficient
capital committed in the development plan. Only proved undeveloped reserves that
are reasonably certain to be drilled within five years of booking and are
supported by a final investment decision to drill them are included in the
development plan. A portion of the proved undeveloped reserves associated with
international operations are expected to be developed beyond the five years and
are tied to approved long-term development plans.
The current Senior Vice President, Reserves for Oxy Oil and Gas is responsible
for overseeing the preparation of reserve estimates, in compliance with U.S. SEC
rules and regulations, including the internal audit and review of Occidental's
oil and gas reserves data. He has over 40 years of experience in the upstream
sector of the exploration and production business and has held various
assignments in North America, Asia and Europe. He is a three-time past Chair of
the Society of Petroleum Engineers Oil and Gas Reserves Committee. He is an
American Association of Petroleum Geologists (AAPG) Certified Petroleum
Geologist and currently serves on the AAPG Committee on Resource Evaluation. He
is a member of the
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Society of Petroleum Evaluation Engineers, the Colorado School of Mines
Potential Gas Committee and the United Nations Economic Commission for Europe
Expert Group on Resource Management. He has Bachelor of Science and Master of
Science degrees in geology from Emory University in Atlanta.
Occidental has a Corporate Reserves Review Committee (Reserves Committee),
consisting of senior corporate officers, to review and approve Occidental's oil
and gas reserves. The Reserves Committee reports to the Audit Committee of
Occidental's Board of Directors during the year. Since 2003, Occidental has
retained Ryder Scott Company, L.P. (Ryder Scott), independent petroleum
engineering consultants, to review its annual oil and gas reserve estimation
processes. For additional reserves information, see   Supplemental Oil and Gas
Information   under Item 8 of this Form 10-K.
In 2020, Ryder Scott conducted a process review of the methods and analytical
procedures utilized by Occidental's engineering and geological staff for
estimating the proved reserves volumes, preparing the economic evaluations and
determining the reserves classifications as of December 31, 2020, in accordance
with SEC regulatory standards. Ryder Scott reviewed the specific application of
such methods and procedures for selected oil and gas properties considered to be
a valid representation of Occidental's 2020 year-end total proved reserves
portfolio. In 2020, Ryder Scott reviewed approximately 30% of Occidental's
proved oil and gas reserves. Since being engaged in 2003, Ryder Scott has
reviewed the specific application of Occidental's reserve estimation methods and
procedures for approximately 87% of Occidental's existing proved oil and gas
reserves.
Management retained Ryder Scott to provide objective third-party input on its
methods and procedures and to gather industry information applicable to
Occidental's reserve estimation and reporting process. Ryder Scott has not been
engaged to render an opinion as to the reasonableness of reserves quantities
reported by Occidental. Occidental has filed Ryder Scott's independent report as
an exhibit to this Form 10-K.
Based on its reviews, including the data, technical processes and
interpretations presented by Occidental, Ryder Scott has concluded that the
overall procedures and methodologies Occidental utilized in estimating the
proved reserves volumes, documenting the changes in reserves from prior
estimates, preparing the economic evaluations and determining the reserves
classifications for the reviewed properties are appropriate for the purpose
thereof and comply with current SEC regulations.

                               CHEMICAL SEGMENT



BUSINESS STRATEGY
OxyChem seeks to be a low-cost producer in order to generate cash flow in excess
of its normal capital expenditure requirements and achieve above-cost-of-capital
returns. OxyChem concentrates on the chlorovinyls chain, beginning with the
co-production of caustic soda and chlorine. Caustic soda and chlorine are
marketed to external customers. In addition, chlorine, together with ethylene,
is converted through a series of intermediate products into PVC. OxyChem's focus
on chlorovinyls allows it to maximize the benefits of integration and take
advantage of economies of scale. Capital is employed to sustain production
capacity and to focus on projects and developments designed to improve the
competitiveness of segment assets. Acquisitions and plant development
opportunities may be pursued when they are expected to enhance the existing core
chlor-alkali and PVC businesses or take advantage of other specific
opportunities. In 2020, capital expenditures for OxyChem totaled $255 million.

BUSINESS ENVIRONMENT
In 2020, the United States economic contraction, estimated to be 3.5%, was
significantly lower than the 2.2% growth experienced in 2019, which resulted in
lower demand for caustic soda and PVC. Pricing for PVC rebounded in the second
half of 2020 and finished higher than the 2019 average due to increased domestic
demand and lower supply. Caustic soda prices were lower in 2020, partially
offset by lower ethylene and energy costs.

BUSINESS REVIEW
BASIC CHEMICALS
The U.S. economic contraction due to the COVID-19 pandemic resulted in lower
domestic demand as the industry chlor-alkali operating rates decreased by 8%
compared to 2019. Liquid caustic soda prices were lower both domestically and
globally in 2020 due to weaker demand in the pulp and paper and industrial
market segments, which was partially offset by lower energy prices than in 2019.
Stronger chlorine derivative demand in relation to caustic soda resulted in
persistent downward pressure on caustic soda pricing.

VINYLS


Due to the impact of the COVID-19 pandemic and supply interruptions during a
very active hurricane season, industry demand for PVC in 2020 decreased
year-over-year by 4%, resulting in 6% lower operating rates. Domestic demand was
up 5.4% while export demand was down 22% from 2019. Second half 2020 housing
starts, construction and home improvement markets were the main contributors for
the strong rebound in domestic demand. US domestic producers grappled with
extended production outages resulting in lower PVC availability for export
markets. Export volume
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represented 28% of total North American production. Industry PVC margins increased in 2020 due to a strong price environment driven by higher than expected demand and limited supply.



INDUSTRY OUTLOOK
Industry performance will depend on the health of the global economy and the
effectiveness of the vaccine rollouts. Continued recovery from 2020 should
result in improvement in the housing, construction, automotive and durable goods
markets. The housing and construction as well as automotive markets are expected
to strengthen over the next year. Margins also depend on market supply and
demand balances and feedstock and energy prices. Recovery in the petroleum
industry should strengthen the demand and pricing of a number of Occidental's
products that are consumed by industry participants. U.S. commodity export
markets will continue to be impacted by the relative strength of the U.S.
dollar.

BASIC CHEMICALS
Demand for basic chemicals is expected to improve in 2021 over 2020 levels.
Improvement in most market segments is expected with improvement in the overall
economy. Demand for chlorine and derivatives will improve with continued growth
in the housing, general construction and automotive markets. Demand for alkali
products, particularly caustic soda, will improve with growth in the pulp and
paper, industrial and alumina markets. Chlor-alkali operating rates should
improve moderately with higher demand and continued competitive energy and raw
material pricing as compared to global feedstock costs.

VINYLS


Domestic PVC demand is expected to improve in 2021 over 2020 levels. Growth in
residential construction spending and expected new infrastructure projects is
forecast to drive domestic growth in 2021. Although overall PVC demand is
expected to remain strong in North America, operating rates are anticipated to
remain relatively flat in 2021 as new PVC capacity is expected to enter the
market in the second half of the year.

                       MIDSTREAM AND MARKETING SEGMENT



BUSINESS STRATEGY
The midstream and marketing segment strives to maximize realized value by
optimizing the use of its gathering, processing, transportation, storage and
terminal commitments and by providing access to domestic and international
markets. To generate returns, the segment evaluates opportunities across the
value chain and uses its assets to provide services to Occidental's
subsidiaries, as well as third parties. The midstream and marketing segment
operates or contracts for services on gathering systems, gas plants,
co-generation facilities and storage facilities and invests in entities that
conduct similar activities. As of December 31, 2019, Occidental began accounting
for its ownership investment in WES under the equity method of accounting. See
  Note 16 - Investments and Related-Party Transactions   in the Notes to
Consolidated Financial Statements in Part II Item 8 of this Form 10-K for more
information.
The midstream and marketing segment has equity investments in WES and Dolphin
Energy Limited. WES owns gathering systems, plants and pipelines and earns
revenue from fee-based and service-based contracts with Occidental and third
parties. Dolphin Energy Limited owns and operates a pipeline which connects its
gas processing and compression plant in Qatar and its receiving facilities in
UAE, and uses its network of Dolphin Energy Limited-owned and other existing
leased pipelines to supply natural gas across the UAE and to Oman. Also included
in the midstream and marketing segment is OLCV. OLCV seeks to leverage
Occidental's carbon management expertise that is derived from its EOR operations
to develop carbon capture, utilization and storage facilities that are expected
to source anthropogenic CO2 and promote innovative technologies that drive cost
efficiencies and economically grow Occidental's business while reducing
emissions.
This segment also seeks to minimize the costs of gas and power used in
Occidental's various businesses. Capital is employed to sustain or expand assets
to improve the competitiveness of Occidental's businesses. In 2020, capital
expenditures related to the midstream and marketing segment totaled $50 million.

BUSINESS ENVIRONMENT
Midstream and marketing segment earnings are affected by the performance of its
various businesses, including its marketing, gathering and transportation, gas
processing and power-generation assets. The marketing business aggregates,
markets and stores Occidental and third-party volumes. Marketing performance is
affected primarily by commodity price changes and margins in oil and gas
transportation and storage programs. The marketing business results can
experience significant volatility depending on commodity price changes and the
Midland-to-Gulf-Coast oil spreads. The Midland-to-Gulf-Coast oil spreads have
decreased from an average of $6.58 per barrel in 2019 to $1.43 per barrel for
the year ended December 31, 2020 and averaging $0.59 per barrel in the fourth
quarter of 2020. A $0.25 change in the Midland-to-Gulf- Coast oil spreads
impacts total year operating cash flows by $65 million. In 2020, Permian to Gulf
Coast transportation capacity increased as new third-party pipelines were
completed. This along with reduction in Permian Basin production, reduced the
Midland-to-Gulf-Coast oil spreads. Gas gathering, processing and transportation
results are affected by fluctuations in commodity prices and the volumes that
are processed and transported through the segment's plants, as well
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as the margins obtained on related services from investments in which Occidental has an equity interest. The 2020 declines in NGL prices and sulfur prices negatively impacted the gas processing business.



BUSINESS REVIEW
MARKETING
The marketing group markets substantially all of Occidental's oil, NGL and
natural gas production, as well as trades around its assets, including
contracted transportation and storage capacity. Occidental's third-party
marketing activities focus on purchasing oil, NGL and gas for resale from
parties whose oil and gas supply is located near its transportation and storage
assets. These purchases allow Occidental to aggregate volumes to better utilize
and optimize its assets. In 2020, compared to the prior year, marketing results
were negatively impacted by the decline in the Midland-to-Gulf-Coast oil
spreads.

PIPELINE


Occidental's pipeline business mainly consists of its 24.5% ownership interest
in Dolphin Energy Limited. Dolphin Energy Limited owns and operates a
230-mile-long, 48-inch-diameter natural gas pipeline (Dolphin Pipeline), which
transports dry natural gas from Qatar to the UAE and Oman. The Dolphin Pipeline
has capacity to transport up to 3.2 Bcf/d and currently transports approximately
2.2 Bcf/d and up to 2.5 Bcf/d in the summer months.

GAS PROCESSING, GATHERING AND CO2
Occidental processes its and third-party domestic wet gas to extract NGL and
other gas byproducts, including CO2 and delivers dry gas to pipelines. Margins
primarily result from the difference between inlet costs of wet gas and market
prices for NGL.
As of December 31, 2020, Occidental has a 2% non-voting general partner interest
and a 51.8% limited partner interest in WES and a 2% non-voting limited partner
interest in WES Operating, a subsidiary of WES. As of December 31, 2020, on a
combined basis, Occidental's total effective economic interest in WES and its
subsidiaries is 53.5%. Occidental intends to reduce its limited partner
ownership interest in WES to below 50%. See   Note 1 - Summary of Significant
Accounting Policies   in the Notes to Consolidated Financial Statements in Part
II Item 8 of this Form 10-K for more information regarding Occidental's equity
method investment in WES. WES owns gathering systems, plants and pipelines and
earns revenue from fee-based and service-based contracts with Occidental and
third parties.
Occidental's 40% participating interest in Al Hosn Gas also includes sour gas
processing facilities that are designed to process 1.3 Bcf/d of natural gas and
separate it into salable gas, condensate, NGL and sulfur. In 2020, the
facilities produced 11,300 tons per day of sulfur, of which approximately 4,500
tons per day was Occidental's net share.
In 2020, compared to the prior year, gas processing, gathering and CO2 results
decreased primarily due to lower NGL prices and sulfur prices, which negatively
impacted the gas processing business.

POWER GENERATION FACILITIES
Earnings from power and steam generation facilities are derived from sales to
affiliates and third parties.

LOW CARBON VENTURES
OLCV was formed to execute on Occidental's vision to reduce global emissions and
provide a more sustainable future through low carbon energy and products. OLCV
capitalizes on Occidental's extensive experience in utilizing CO2 for EOR by
investing in technologies, developing projects and providing services to
facilitate and accelerate the implementation of carbon capture, utilization and
storage projects and opportunities for zero-carbon power. Moreover, OLCV is
fostering new technologies and business models with the potential to position
Occidental as a leader in the production of low-carbon oil and products.
Occidental has developed standards and protocols recognized by the EPA for
monitoring, reporting and verifying the amount, safety and permanence of CO2
stored through secure geologic sequestration. The company holds the nation's
first two EPA-approved monitoring, reporting and verification plans for geologic
sequestration through EOR production.

INDUSTRY OUTLOOK
Midstream and marketing segment results can experience volatility depending on
the Midland-to-Gulf-Coast oil spreads and commodity price changes. To a lesser
extent, declines in commodity prices, including NGL and sulfur prices, reduce
the results for the gas processing business.

34 OXY 2020 FORM 10-K

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        SEGMENT RESULTS OF OPERATIONS AND ITEMS AFFECTING COMPARABILITY



SEGMENT RESULTS OF OPERATIONS
Segment earnings exclude income taxes, interest income, interest expense,
environmental remediation expenses, unallocated corporate expenses and
discontinued operations, but include gains and losses from divestitures of
segment assets and income from the segments' equity investments. Seasonality is
not a primary driver of changes in Occidental's consolidated quarterly earnings
during the year.
The following table sets forth the sales and earnings of each operating segment
and corporate items for the years ended December 31:

millions, except per share amounts                                             2020              2019              2018
NET SALES (a)
Oil and gas                                                            $  13,066          $ 13,941          $ 10,441
Chemical                                                                   3,733             4,102             4,657
Midstream and marketing                                                    1,768             4,132             3,656
Eliminations                                                                (758)           (1,264)             (930)
Total                                                                  $  17,809          $ 20,911          $ 17,824
SEGMENT RESULTS AND EARNINGS
Domestic                                                               $  (8,758)         $    838          $    621
International                                                               (742)            1,851             1,896
Exploration                                                                 (132)             (169)              (75)
Oil and gas                                                               (9,632)            2,520             2,442
Chemical                                                                     664               799             1,159
Midstream and marketing                                                   (4,175)              241             2,802
Total                                                                  $ (13,143)         $  3,560          $  6,403
Unallocated corporate items
Interest expense, net                                                     (1,424)           (1,002)             (356)
Income tax benefit (expense)                                               2,172              (861)           (1,477)
Other                                                                     (1,138)           (2,204)             (439)
Income (loss) from continuing operations                               $ (13,533)         $   (507)         $  4,131
Discontinued operations, net                                              (1,298)              (15)                -
Net income (loss)                                                        (14,831)             (522)            4,131
Less: Net loss attributable to noncontrolling interests                        -              (145)                -
Less: Preferred stock dividends                                             (844)             (318)                -
Net income (loss) attributable to common stockholders                  $ (15,675)         $   (985)         $  4,131
Net income (loss) attributable to common stockholders-basic            $  

(17.06) $ (1.22) $ 5.40 Net income (loss) attributable to common stockholders-diluted $ (17.06) $ (1.22) $ 5.39




(a)Intersegment sales eliminate upon consolidation and are generally made at
prices approximating those that the selling entity would be able to obtain in
third-party transactions.

                                                            OXY 2020 FORM 10-K     35

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ITEMS AFFECTING COMPARABILITY
OIL AND GAS SEGMENT
Results of Operations
millions                                                                     2020              2019              2018
Segment Sales                                                         $ 13,066          $ 13,941          $ 10,441
Segment Results (a)
Domestic                                                              $ (8,758)         $    838          $    621
International                                                             (742)            1,851             1,896
Exploration                                                               (132)             (169)              (75)
Total                                                                 $ (9,632)         $  2,520          $  2,442

Items affecting comparability
Asset impairments and related items - domestic (b)                    $ (5,904)         $   (288)         $      -
Asset impairments and related items - international (c)               $ (1,195)         $    (39)         $   (416)
Asset sale gains (losses), net - domestic (d)                         $ (1,275)         $    475          $      -
Asset sale losses, net - international (e)                            $   (353)         $      -          $      -
Oil and natural gas collars mark-to-market gains (losses)             $  1,064          $   (107)         $      -
Rig terminations and other - domestic                                 $    (59)         $      -          $      -
Rig terminations and other - international                            $    

(13) $ - $ -




(a)Results included significant items affecting comparability discussed in the
footnotes below.
(b)The 2020 amount included pre-tax impairments of $4.5 billion primarily
related to domestic onshore unproved acreage as well as $1.3 billion primarily
related to other domestic onshore assets and the Gulf of Mexico. The 2019 amount
included $285 million of impairment and related charges associated with domestic
undeveloped leases that were set to expire in the near-term, where Occidental
had no plans to pursue exploration activities.
(c)The 2020 amount included $1.2 billion of impairment and related charges
associated with Occidental's proved properties in Algeria and Oman. The 2019
amount related to Occidental's mutually agreed early termination of certain
Qatar concessions. The 2018 amount consisted of impairment and related charges
associated with certain Qatar concessions.
(d)The 2020 amount included a $440 million loss on the sale of Occidental's
mineral and fee surface acres in Wyoming, Colorado and Utah and losses of $820
million related to the sale of non-core, largely non-operated acreage in the
Permian Basin. The 2019 amount included gain on the sale of a portion of
Occidental's joint venture with ECOPETROL S.A. (Ecopetrol) and a loss on sale of
real estate assets.
(e)The 2020 amount included a loss on the sale of Occidental's Colombia assets
of $353 million.

The following table sets forth the average realized prices for oil, NGL and natural gas from ongoing operations for each of the three years in the period ended December 31, 2020, and includes a year-over-year change calculation:



                                                                              Year over                            Year over
                                                               2020         Year Change             2019         Year Change             2018
Average Realized Prices
Oil ($/Bbl)
United States                                            $ 36.39                 (33) %       $ 54.31                  (4) %       $ 56.30
Latin America                                            $ 38.80                 (32) %       $ 57.26                 (11) %       $ 64.32
Middle East/Africa                                       $ 41.52                 (33) %       $ 62.03                  (8) %       $ 67.69
Total worldwide                                          $ 37.41                 (34) %       $ 56.32                  (7) %       $ 60.64
NGL ($/Bbl)
United States                                            $ 11.98                 (25) %       $ 16.03                 (42) %       $ 27.64
Middle East/Africa                                       $ 16.22                 (26) %       $ 21.85                  (6) %       $ 23.20
Total worldwide                                          $ 12.58                 (27) %       $ 17.20                 (34) %       $ 26.25
Natural Gas ($/Mcf)
United States                                            $  1.18                 (10) %       $  1.31                 (18) %       $  1.59
Latin America                                            $  5.41                 (23) %       $  7.01                   9  %       $  6.43
Total worldwide                                          $  1.31                 (10) %       $  1.45                 (10) %       $  1.62


36   OXY 2020 FORM 10-K

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Domestic oil and gas results, excluding significant items affecting
comparability, decreased in 2020 compared to 2019 primarily due to lower
realized oil, NGL and natural gas prices, partially offset by higher crude oil,
NGL and natural gas sales volumes mostly due to additional production from the
Acquisition.
International oil and gas results, excluding significant items affecting
comparability, decreased in 2020 compared to 2019 primarily due to a decrease in
realized commodity prices as well as lower volumes as a result of exiting Qatar
in 2019.

Production


The following table sets forth the production volumes of oil, NGL and natural
gas per day from ongoing operations for each of the three years in the period
ended December 31, 2020 and includes a year-over-year change calculation:

Production per Day, Ongoing Operations                                Year over                             Year over
(Mboe/d)                                               2020         Year Change              2019         Year Change             2018
United States
Permian Resources                                    435                  23  %            355                  66  %           214
Permian EOR                                          140                  (9) %            154                   -  %           154
DJ Basin                                             293                 144  %            120                    N/A             -
Gulf of Mexico                                       130                 124  %             58                    N/A             -
Other Domestic                                        39                  44  %             27                 575  %             4
Total                                              1,037                  45  %            714                  92  %           372
Latin America                                         32                  (6) %             34                   6  %            32
Middle East / Africa
Algeria                                               44                  83  %             24                    N/A             -
Al Hosn Gas                                           78                  (5) %             82                  12  %            73
Dolphin                                               44                   5  %             42                   5  %            40
Oman                                                  85                  (4) %             89                   3  %            86
Total                                                251                   6  %            237                  19  %           199
Total Production from Ongoing Operations           1,320                  34  %            985                  63  %           603
Operations exited or exiting                          30                 (32) %             44                 (20) %            55
Total Production (Mboe/d) (a)                      1,350                  31  %          1,029                  56  %           658


(a)Natural gas volumes have been converted to Boe based on energy content of
six Mcf of gas to one barrel of oil. Boe equivalent does not necessarily result
in price equivalency. Please refer to the Supplemental Oil and Gas Information
(unaudited) section of this Form 10-K for additional information on oil and gas
production and sales.

Average daily production volumes from ongoing operations increased in 2020 compared to 2019 primarily due to a full year of production associated with the assets acquired from the Acquisition.



Lease Operating Expense
The following table sets forth the average lease operating expense per Boe from
ongoing operations for each of the three years in the period ended December 31,
2020:

                                                            2020       2019        2018
            Average lease operating expense per Boe        $6.38      $9.07      $11.52

Average lease operating expense per Boe decreased in 2020 compared to 2019 primarily due to operational efficiencies related to downhole maintenance and supports.



                                                            OXY 2020 FORM 10-K     37


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CHEMICAL SEGMENT
millions                  2020         2019         2018
Segment Sales        $ 3,733      $ 4,102      $ 4,657
Segment Results      $   664      $   799      $ 1,159



Chemical segment results decreased in 2020 compared to 2019 due to lower
realized caustic soda prices and overall lower sales volumes as a result of the
COVID-19 pandemic, partially offset by lower natural gas costs and lower plant
spending.

MIDSTREAM AND MARKETING SEGMENT
millions                                                        2020          2019         2018
Segment Sales                                             $  1,768      $  4,132      $ 3,656
Segment Results (a)                                       $ (4,175)     $    241      $ 2,802

Items affecting comparability
Asset and equity investment sale gains (losses) (b)       $    (46)     $    114      $   907
Asset impairments and other charges (c)                   $ (4,194)     $ (1,002)     $     -
Interest rate swaps mark-to-market, net (d)               $      -      $   

30 $ -




(a)Results included items affecting comparability listed below.
(b)The 2020 amount represented a loss on the exchange of WES common units to
retire a $260 million note. The 2019 amount represented a $114 million gain on
the sale of an equity investment in Plains All American Pipeline, L.P. and
Plains GP Holdings, L.P. (together, Plains). The 2018 amount represented a gain
on sale of non-core domestic midstream assets.
(c)The 2020 amount included a $2.7 billion other-than-temporary impairment of
the equity investment in WES and $1.4 billion of impairments related to the
write-off of goodwill and a loss from an equity investment related to WES'
write-off of its goodwill. The 2019 amount included a $1 billion charge as a
result of recording Occidental's investment in WES at fair value as of December
31, 2019 upon the loss of control.
(d)The 2019 amount represented a $30 million mark-to-market gain on an interest
rate swap for WES.

Midstream and marketing segment results, excluding items affecting
comparability, decreased in 2020 compared to 2019, primarily due to lower
marketing margins from the tightening of the average Midland-to-Gulf-Coast oil
spreads by $5.15 per barrel, and to a lesser extent lower pipeline income
following the sale of the Plains equity investment in the third quarter of 2019
and lower sulfur prices impacting Al Hosn Gas.

CORPORATE

Significant corporate items include the following:


    millions                                                        2020   

2019 2018

Items Affecting Comparability


    Anadarko Acquisition-related costs                          $ (339)

$ (1,647) $ -


    Bridge loan financing fees                                  $    -      $   (122)     $  -
    Acquisition-related pension and termination benefits        $  114      $     37      $  -
    Interest rate swaps mark-to-market, net                     $ (428)     $    122      $  -
    Other charges and asset impairments                         $    -      $    (22)     $  -
    Warrant gains mark-to-market                                $    5      $     81      $  -



                                  INCOME TAXES



Total deferred tax assets, after valuation allowance, were $4.3 billion and $3.7
billion at December 31, 2020, and 2019, respectively. Occidental expects to
realize the recorded deferred tax assets, net of any allowances, through future
operating income and reversal of temporary differences. The total deferred tax
liabilities were $11.4 billion and $13.4 billion as of December 31, 2020, and
2019, respectively. The decrease in net deferred tax liability in 2020 over 2019
is primarily driven by domestic asset impairments for which Occidental does not
receive an immediate tax benefit as well as an increase in net operating loss
carryforwards.

38   OXY 2020 FORM 10-K

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WORLDWIDE EFFECTIVE TAX RATE
The following table sets forth the calculation of the worldwide effective tax
rate for income from continuing operations:

millions                                                          2020         2019         2018
SEGMENT RESULTS
Oil and gas                                                 $ (9,632)     $ 2,520      $ 2,442
Chemical                                                         664          799        1,159
Midstream and marketing                                       (4,175)         241        2,802
Unallocated corporate items                                   (2,562)      (3,206)        (795)
Income (loss) from continuing operations before taxes        (15,705)         354        5,608
Income tax benefit (expense)
Federal and state                                              2,607           34         (463)
Foreign                                                         (435)        (895)      (1,014)
Total income tax benefit (expense)                             2,172         (861)      (1,477)
Income (loss) from continuing operations                     (13,533)        (507)       4,131
Worldwide effective tax rate                                14%           

243% 26%





In 2020, Occidental's worldwide effective tax rate was 14%, which was largely a
result of the impairment of the WES goodwill and certain international assets,
for which Occidental receives no tax benefit and higher-taxed foreign operations
which generally caused Occidental's tax rate to vary significantly from the U.S.
corporate tax rate. Occidental's effective tax rate is impacted each year by the
relative pre-tax income (loss) earned by its domestic and international
operations.

                      CONSOLIDATED RESULTS OF OPERATIONS



REVENUE AND OTHER INCOME ITEMS
millions                                         2020          2019         

2018


Net sales                                  $ 17,809      $ 20,911      $ 

17,824

Interest, dividends and other income $ 118 $ 217 $ 136 Gains (losses) on sale of assets, net $ (1,666) $ 622 $ 974





Price and volume changes generally represent the majority of the change in the
oil and gas and chemical segments sales. Midstream and marketing sales are
mainly impacted by the lower marketing margins from the decrease in the
Midland-to-Gulf-Coast oil spreads and, to a lesser extent, the change in NGL and
sulfur prices for the gas processing business.
The decrease in net sales in 2020 compared to 2019 was primarily due to lower
realized oil prices in the oil and gas segment despite higher volumes as a
result of a full year of production from properties added in the Acquisition and
net gains on the three-way oil collars. Midstream and marketing sales declined
due to tightening of the Midland-to-Gulf-Coast oil spreads. Chemical sales
declined primarily due to lower sales volumes across all products and lower
realized caustic soda prices.
The 2020 losses on sales of assets, net, is primarily comprised of $820 million
related to the sale of certain non-core, largely non-operated acreage in the
Permian Basin, $440 million related to the sale of 4.5 million mineral acres and
1 million fee surface acres located in Wyoming, Colorado and Utah, $353 million
related to the sale of the Colombia onshore assets and a loss of $46 million
related to the WES note exchange.

                                                            OXY 2020 FORM 

10-K 39

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EXPENSE ITEMS
millions                                              2020         2019         2018
Oil and gas operating expense                   $  3,065      $ 3,282      $ 2,761
Transportation and gathering expense            $  1,600      $   635      $   152
Chemical and midstream cost of sales            $  2,408      $ 2,791      $ 2,833
Purchased commodities                           $  1,395      $ 1,679      $   822
Selling, general and administrative             $    864      $   893      $   585
Other operating and non-operating expense       $    884      $ 1,421      $ 1,028
Depreciation, depletion and amortization        $  8,097      $ 6,140      $ 3,977
Asset impairments and other charges             $ 11,083      $ 1,361      $   561
Taxes other than on income                      $    622      $   840      $   439
Anadarko Acquisition-related costs              $    339      $ 1,647      $     -
Exploration expense                             $    132      $   247      $   110
Interest and debt expense, net                  $  1,424      $ 1,066

$ 389





OIL AND GAS OPERATING EXPENSE
Oil and gas operating expense decreased in 2020 from the prior year, primarily
due to operational efficiencies that decreased downhole maintenance and workover
and support costs and lower energy and purchased injectant costs.

TRANSPORTATION AND GATHERING EXPENSE Transportation and gathering expense increased in 2020 from the prior year, primarily due to a full year of increased sales volumes related to the Acquisition as well as transportation costs to WES which was previously a consolidated entity in 2019.



CHEMICAL AND MIDSTREAM COST OF SALES
Chemical and midstream cost of sales decreased in 2020 from the prior year,
primarily due to favorable raw material costs in the chemical segment and lower
midstream operation costs due to the loss of control of WES in 2019.

PURCHASED COMMODITIES
Purchased commodities decreased in 2020 largely as a result of lower crude oil
prices on third-party crude purchases related to the midstream and marketing
segment.

OTHER OPERATING AND NON-OPERATING EXPENSE
Other operating and non-operating expense decreased in 2020 from the prior year,
primarily due to the realization of overhead savings and a net gain related to
the settlement, curtailment and special termination benefits on pension plans
acquired in the Acquisition.

DEPRECIATION, DEPLETION AND AMORTIZATION (DD&A)
DD&A expense increased in 2020 from the prior year, primarily due to having a
full year of production in 2020 associated with assets acquired through the
Acquisition.

ASSET IMPAIRMENTS AND OTHER CHARGES
In 2020, asset impairments and other charges included pre-tax impairments of
$4.5 billion primarily related to domestic onshore unproved acreage as well as
$1.3 billion primarily related to other domestic onshore assets and the Gulf of
Mexico. In addition there were $931 million of impairment and related charges
associated with Occidental's proved properties in Algeria to remeasure the
Algeria oil and gas properties to their fair value. In addition, for the
midstream and marketing segment, there were pre-tax impairment charges of
$2.7 billion other-than-temporary impairment of the equity investment in WES and
$1.2 billion of impairments related to the write-off of goodwill.

TAXES OTHER THAN ON INCOME
Taxes other than on income in 2020 decreased from the prior year, due to lower
production taxes which are directly tied to prices on oil, NGL and natural gas
volumes.

40   OXY 2020 FORM 10-K

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ACQUISITION RELATED EXPENSES
Acquisition related expenses in 2020 are associated with employee severance and
related employee costs primarily related to one-time severance costs and the
accelerated vesting of certain Anadarko share-based awards for former Anadarko
employees based on the terms of the Acquisition and existing change of control
provisions within the former Anadarko employment agreements.

INTEREST AND DEBT EXPENSE, NET
Interest and debt expense, net, increased in 2020 from the prior year due to an
increase in debt issued to partially fund the Acquisition, as well as the debt
assumed through the Acquisition.

OTHER ITEMS
Income/(expense) millions                                     2020        2019          2018
Gains (losses) on interest rate swaps and warrants       $  (423)     $  233      $      -
Income from equity investments                           $   370      $  373      $    331
Income tax benefit (expense)                             $ 2,172      $ (861)     $ (1,477)



GAINS (LOSSES) ON INTEREST RATE SWAPS AND WARRANTS
Gains (losses) on interest rate swaps and warrants are primarily due to a
decline in the reference rate on the interest rate swaps throughout 2020, as
fixed interest rates exceed the floating interest rates during the reference
period.

INCOME TAX BENEFIT (EXPENSE)
Occidental realized an income tax benefit for the year ended December 31, 2020
as compared to an income tax expense for the year ended December 31, 2019,
primarily due to lower pre-tax income, partially offset by the impairment of
certain international assets as well as the equity method goodwill associated
with the WES investment, for which Occidental received no tax benefit.

DISCONTINUED OPERATIONS, NET
Discontinued operations, net in 2020 is associated with the operations of Ghana
for which Occidental continues to present as held for sale. The decrease in
income in 2020 is primarily associated with an after-tax impairment of $1.4
billion in the second quarter of 2020 to reflect the held for sale assets at
their fair value less costs to sell based on the income approach.

                                                            OXY 2020 FORM 

10-K 41

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                       LIQUIDITY AND CAPITAL RESOURCES



CASH ON HAND
At December 31, 2020, Occidental had approximately $2.0 billion in cash and cash
equivalents. A substantial majority of this cash is held and available for use
in the United States.
Occidental's $5 billion RCF, available cash, continued access to capital markets
and positive operating cash flows will allow Occidental to meet its short- and
long-term purchase obligations, near-term debt maturities and other liabilities.
At December 31, 2020, Occidental had $0.4 billion in current maturities of
long-term debt through December 31, 2021 and an additional $2.1 billion in
long-term obligations due in 2022. Other near-term obligations include interest
rate swaps with mandatory termination dates in September 2021 with a notional
value of $750 million and accounts payable incurred in the course of
Occidental's business activities.
Occidental continues to pursue divestitures of certain assets and intends to use
the net proceeds from asset sales and free cash flow to repay its nearer-term
debt maturities, but the expected timing and final proceeds from such asset
sales are uncertain. Occidental currently expects its cash on hand to be
sufficient to meet its debt maturities, operating expenditures and other
obligations for the next 12 months from the date of this filing. However, given
the inherent uncertainty associated with the duration and severity of the
COVID-19 pandemic and its resulting impact on oil demand, Occidental may need to
raise capital to fund its operations and refinance debt maturities.
At December 31, 2020, Occidental had $170 million in restricted cash and
restricted cash equivalents, which was primarily associated with an
international joint venture, a benefits trust for former Anadarko employees that
was funded as part of the Acquisition and a judicially controlled account
related to a Brazilian tax dispute. Restricted cash within the benefits trust
will be made available to Occidental as benefits are paid to former Anadarko
employees.

DEBT ACTIVITY
On March 23, 2020, Occidental amended the sole financial covenant in its RCF by
revising the definition of "Total Capitalization" to exclude any non-cash
write-downs, impairments and related charges occurring after September 30, 2019.
The amendments provide Occidental with additional flexibility in the event of
any such write-downs, impairments or other changes under the ratio of Total Debt
to Total Capitalization covenant.
In July, August, and December, 2020, Occidental issued several series of notes
with maturities from five to ten years. The proceeds from these issuances were
used to tender and repay nearer-term notes and the Term Loan. Occidental used
proceeds from the sale of mineral and surface acres located in Wyoming, Colorado
and Utah, the Colombian asset sale and proceeds from other divestitures to repay
debt. Occidental used the net proceeds from asset sales, cash on hand and Senior
Notes Offerings to retire or tender $6.0 billion of 2021, $2.7 billion of 2022
and $264 million of 2023 maturities.
In August 2020, Occidental exchanged approximately 27.9 million WES common units
to retire a $260 million note payable to WES.
See   N    ote 7     -     Long    -    Term Debt   in the Notes to Consolidated
Financial Statements in Part II Item 8 of this Form 10-K for more information
related to Occidental's debt issuance and repayments.
As of December 31, 2020, under the most restrictive covenants of its financing
agreements, Occidental had substantial capacity for additional unsecured
borrowings, the payment of cash dividends and other distributions on, or
acquisitions of, Occidental stock.

CASH FLOW ANALYSIS
CASH PROVIDED BY OPERATING ACTIVITIES
millions                                                                2020             2019             2018
Operating cash flow from continuing operations                    $ 3,842

$ 7,336 $ 7,669 Operating cash flow from discontinued operations, net of taxes

                                                                 113               39                -
Net cash provided by operating activities                         $ 3,955

$ 7,375 $ 7,669





Cash provided by operating activities decreased $3.4 billion in 2020 compared to
2019, primarily due to lower oil prices as average WTI and Brent prices
decreased by 31% and 33%, respectively. Operating cash flows also decreased due
to the decrease in the average Midland-to-Gulf-Coast oil spreads, which
decreased by $5.15 per barrel in 2020 compared to 2019. To a lesser extent, the
reduction in realized NGL and natural gas prices also impacted the lower
operating cash flows in 2020. These decreases were partially offset by higher
oil and gas sale volumes as 2020 had a full year of production from assets
associated with the Acquisition along with settlement of the three-way oil
collars of $0.9 billion.
42   OXY 2020 FORM 10-K


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CASH USED BY INVESTING ACTIVITIES
millions                                                                 2020               2019              2018
Capital expenditures
Oil and gas                                                       $ (2,208)         $  (5,512)         $ (4,413)
Chemical                                                              (255)              (267)             (271)
Midstream and marketing                                                (50)              (461)             (216)
Corporate                                                              (22)              (127)              (75)
Total                                                             $ (2,535)         $  (6,367)         $ (4,975)
Changes in capital accrual                                            (519)              (249)               55
Purchase of businesses and assets, net                                (114)           (28,088)             (928)
Proceeds from sale of assets and equity investments, net             2,281              6,143             2,824
Other investing activities, net                                        109               (291)             (182)
Investing cash flows from continuing operations                   $   (778)         $ (28,852)         $ (3,206)
Investing cash flows from discontinued operations                      (41)              (175)                -
Net cash used by investing activities                             $   (819)

$ (29,027) $ (3,206)

Cash flows used by investing activities decreased by $28.2 billion in 2020 compared to 2019 primarily due to the 2019 Acquisition. Additionally, Occidental reduced capital spending in 2020 in response to the COVID-19 pandemic. See


  Note 4     -     Divestitures and     O    ther     Tra    nsactions   in the
Notes to Consolidated Financial Statements in Part II Item 8 of this Form 10-K
for a listing of assets and equity investments sold in 2020, 2019 and 2018.

CASH PROVIDED (USED) BY FINANCING ACTIVITIES
millions                                                     2020          2019          2018
Financing cash flows from continuing operations        $ (4,508)     $ 22,196      $ (3,102)
Financing cash flows from discontinued operations      $     (8)     $     (3)     $      -
Net cash provided (used) by financing activities       $ (4,516)     $ 22,193      $ (3,102)



Cash provided by financing activities decreased by $26.7 billion compared to
2019 primarily due to the 2019 increase in debt used to fund the Acquisition.
Additionally, common dividends paid in 2020 were lower than 2019 due to the
Board of Directors' decision to reduce the quarterly dividend rate effective as
of July 2020 from $0.79 to $0.01 per share. See   Note 7 - Long-Term Debt   in
the Notes to Consolidated Financial Statements in Part II Item 8 of this Form
10-K for more information related to Occidental's debt issuance and repayments.

OFF-BALANCE SHEET ARRANGEMENTS

GUARANTEES


Occidental has guaranteed its portion of the debt of Dolphin Energy Limited, an
equity method investment, and has entered into various other guarantees,
including performance bonds, letters of credit, indemnities and commitments
provided by Occidental to third parties, mainly to provide assurance that
Occidental or its subsidiaries and affiliates will meet their various
obligations. See "Midstream and Marketing Segment - Business Review - Pipeline"
and "Segment Results of Operations" for further information regarding the
Dolphin Energy Project. As of December 31, 2020, and 2019, Occidental had
provided limited recourse guarantees of approximately $242 million, primarily
related to Dolphin Energy Limited's debt, which are limited to certain political
and other events.

                          COMMITMENTS AND OBLIGATIONS



DELIVERY COMMITMENTS
Occidental has made long-term commitments to certain refineries and other buyers
to deliver oil, NGL and natural gas. The total amount contracted to be delivered
is approximately 111 MMbbl of oil through 2025, 862 MMbbl of NGL through 2029
and 1,025 Bcf of gas through 2029. The price for these deliveries is set at the
time of delivery of the product. Occidental has significantly more production
capacity than the amounts committed and has the ability to secure additional
volumes in case of a shortfall.
                                                            OXY 2020 FORM 

10-K 43

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CONTRACTUAL OBLIGATIONS
The following table summarizes and cross-references Occidental's contractual
obligations and indicates on- and off-balance sheet obligations as of December
31, 2020. Commitments related to held for sale assets are excluded.

                                                                                        Payments Due by Year
                                                                                  2022 and                                     2026 and
millions                                          Total             2021              2023           2024 and 2025           thereafter
On-Balance Sheet
Current portion of long-term debt (Note 7)
(a)                                         $    398          $   398          $      -          $            -          $         -
Long-term debt (Note 7) (a)                   34,837                -             3,007                   6,798               25,032
Leases (Note 8) (b)                            1,724              500               374                     234                  616
Asset retirement obligations (Note 1)          4,130              153               845                     631                2,501
Other long-term liabilities (c)                2,386              321               336                     187                1,542
Off-Balance Sheet
Purchase obligations (d)                      13,184            2,826             4,344                   2,986                3,028
Total                                       $ 56,659          $ 4,198          $  8,906          $       10,836          $    32,719


(a)Excluded unamortized debt discount and interest on the debt. As of December
31, 2020, interest on long-term debt totaling $19.9 billion is payable in the
following years: 2021 - $1.6 billion, 2022 and 2023 - $3.2 billion, 2024 and
2025 - $2.9 billion, 2026 and thereafter - $12.2 billion.
(b)Occidental is the lessee under various agreements for real estate, equipment,
plants and facilities. See   Note 2 - Accounting and Disclosure Changes   in the
Notes to Consolidated Financial Statements in Part II Item 8 of this Form 10-K
regarding the impact of rules effective January 1, 2019 which required
Occidental to recognize most leases, including operating leases, on the balance
sheet.
(c)Includes long term obligations and current portions of long term obligations
under postretirement benefit, accrued transportation commitments, ad valorem
taxes and other accrued liabilities.
(d)Amounts include payments which will become due under long-term agreements to
purchase goods and services used in the normal course of business to secure
terminal, pipeline and processing capacity, CO2, electrical power, steam and
certain chemical raw materials. Amounts exclude certain product purchase
obligations related to marketing activities for which there are no minimum
purchase requirements or the amounts are not fixed or determinable. Long-term
purchase contracts are discounted at a 4.41% discount rate.

                LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES



LEGAL MATTERS
Occidental or certain of its subsidiaries are involved, in the normal course of
business, in lawsuits, claims and other legal proceedings that seek, among other
things, compensation for alleged personal injury, breach of contract, property
damage or other losses, punitive damages, civil penalties, or injunctive or
declaratory relief. Occidental or certain of its subsidiaries also are involved
in proceedings under Comprehensive Environmental Response, Compensation and
Liability Act (CERCLA) and similar federal, state, local and foreign
environmental laws. These environmental proceedings seek funding or performance
of remediation and, in some cases, compensation for alleged property damage,
punitive damages, civil penalties and injunctive relief. Usually Occidental or
such subsidiaries are among many companies in these environmental proceedings
and have to date been successful in sharing response costs with other
financially sound companies. Further, some lawsuits, claims and legal
proceedings involve acquired or disposed assets with respect to which a third
party or Occidental retains liability or indemnifies the other party for
conditions that existed prior to the transaction.
In accordance with applicable accounting guidance, Occidental accrues reserves
for outstanding lawsuits, claims and proceedings when it is probable that a
liability has been incurred and the liability can be reasonably estimated.
Reserves for matters, other than for environmental remediation, that satisfy
this criteria as of December 31, 2020 and 2019, were not material to
Occidental's Consolidated Balance Sheets.
In 2016, Occidental received payments from the Republic of Ecuador of
approximately $1.0 billion pursuant to a November 2015 arbitration award for
Ecuador's 2006 expropriation of Occidental's Participation Contract for Block
15. The awarded amount represented a recovery of 60% of the value of Block 15.
In 2017, Andes Petroleum Ecuador Ltd. (Andes) filed a demand for arbitration,
claiming it is entitled to a 40% share of the judgment amount obtained by
Occidental. Occidental contends that Andes is not entitled to any of the amounts
paid under the 2015 arbitration award because Occidental's recovery was limited
to Occidental's own 60% economic interest in the block. The merits hearing
occurred in September 2020 and an arbitration decision is expected within the
next six months.
In August 2019, Sanchez Energy Corporation and certain of its affiliates
(Sanchez) filed voluntary petitions for reorganization under Chapter 11 of the
United States Bankruptcy Code. Sanchez is a party to agreements with Anadarko as
44   OXY 2020 FORM 10-K


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a result of its 2017 purchase of Anadarko's Eagle Ford Shale assets. Sanchez is
attempting to reject some of the agreements related to the purchase of
Anadarko's Eagle Ford Shale assets. If Sanchez is permitted to reject certain of
those agreements, then Anadarko may owe deficiency payments to various third
parties. Occidental intends to defend vigorously any attempt by Sanchez to
reject the agreements. Occidental expects a ruling on Sanchez's purported
contract rejection in the first half of 2021.
On May 26, 2020, a putative securities class action captioned City of Sterling
Heights General Employees' Retirement System, et al. v. Occidental Petroleum
Corporation, et al., No. 651994/2020 (City of Sterling), was filed in the
Supreme Court of the State of New York. The complaint asserts claims under
Sections 11, 12 and 15 of the Securities Act of 1933, as amended (the Securities
Act), based on alleged misstatements in the Securities Act filings, including
the registration statement filed in connection with the Anadarko Acquisition and
Occidental's related issuance of common stock and debt securities offerings that
took place in August 2019. The lawsuit was filed against Occidental, certain
current and former officers and directors and certain underwriters of the debt
securities offerings, and seeks damages in an unspecified amount, plus
attorneys' fees and expenses. Two additional putative class actions were filed
in the same court (together with City of Sterling, the State Cases) and the
State Cases were consolidated into In re Occidental Petroleum Corporation
Securities Litigation, No. 651830/2020. Occidental intends to vigorously defend
itself in all respects in regard to the State Cases.
The ultimate outcome and impact of outstanding lawsuits, claims and proceedings
on Occidental cannot be predicted. Management believes that the resolution of
these matters will not, individually or in the aggregate, have a material
adverse effect on Occidental's Consolidated Balance Sheets. If unfavorable
outcomes of these matters were to occur, future results of operations or cash
flows for any particular quarterly or annual period could be materially
adversely affected. Occidental's estimates are based on information known about
the legal matters and its experience in contesting, litigating and settling
similar matters. Occidental reassesses the probability and estimability of
contingent losses as new information becomes available.

TAX MATTERS
During the course of its operations, Occidental is subject to audit by tax
authorities for varying periods in various federal, state, local and foreign tax
jurisdictions. Taxable years through 2017 for U.S. federal income tax purposes
have been audited by the U.S. Internal Revenue Service (IRS) pursuant to its
Compliance Assurance Program and subsequent taxable years are currently under
review. Taxable years through 2009 have been audited for state income tax
purposes. All other significant audit matters in foreign jurisdictions have been
resolved through 2010. During the course of tax audits, disputes have arisen and
other disputes may arise as to facts and matters of law. Occidental believes
that the resolution of outstanding tax matters would not have a material adverse
effect on its consolidated financial position or results of operations.
For Anadarko, its taxable years through 2014 and tax year 2016 for U.S. federal
and state income tax purposes have been audited by the IRS and respective state
taxing authorities. There are outstanding significant audit matters in one
foreign jurisdiction. As stated above, during the course of tax audits, disputes
have arisen and other disputes may arise as to facts and matters of law. Other
than the matter discussed below, Occidental believes that the resolution of
these outstanding tax matters would not have a material adverse effect on its
consolidated financial position or results of operations.
Anadarko received an $881 million tentative refund in 2016 related to its
$5.2 billion Tronox Adversary Proceeding settlement payment in 2015. In
September 2018, Anadarko received a statutory notice of deficiency from the IRS
disallowing the net operating loss carryback and rejecting Anadarko's refund
claim. As a result, Anadarko filed a petition with the U.S. Tax Court to dispute
the disallowances in November 2018. The case was in the IRS appeals process
until the second quarter of 2020, however it has since been returned to the U.S.
Tax Court where Occidental expects to continue pursuing resolution.
In accordance with ASC 740's guidance on the accounting for uncertain tax
positions, Occidental has recorded no tax benefit on the tentative cash tax
refund of $881 million. As a result, should Occidental not ultimately prevail on
the issue, there would be no additional tax expense recorded relative to this
position for financial statement purposes other than future interest. However,
in that event Occidental would be required to repay approximately $925 million
($898 million federal and $27 million in state taxes) plus accrued interest of
approximately $255 million. A liability for this amount plus interest is
included in deferred credits and other liabilities-other.

INDEMNITIES TO THIRD PARTIES
Occidental, its subsidiaries, or both, have indemnified various parties against
specified liabilities those parties might incur in the future in connection with
purchases and other transactions that they have entered into with
Occidental. These indemnities usually are contingent upon the other party
incurring liabilities that reach specified thresholds. As of December 31, 2020,
Occidental is not aware of circumstances that it believes would reasonably be
expected to lead to indemnity claims that would result in payments materially in
excess of reserves.

                                                            OXY 2020 FORM 10-K     45

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                   ENVIRONMENTAL LIABILITIES AND EXPENDITURES



Occidental's operations are subject to stringent federal, state, local and
international laws and regulations related to improving or maintaining
environmental quality. The laws that require or address environmental
remediation, including CERCLA and similar federal, state, local and
international laws, may apply retroactively and regardless of fault, the
legality of the original activities or the current ownership or control of
sites. Occidental or certain of its subsidiaries participate in or actively
monitor a range of remedial activities and government or private proceedings
under these laws with respect to alleged past practices at operating, closed and
third-party sites. Remedial activities may include one or more of the following:
investigation involving sampling, modeling, risk assessment or monitoring;
cleanup measures including removal, treatment or disposal; or operation and
maintenance of remedial systems. The environmental proceedings seek funding or
performance of remediation and, in some cases, compensation for alleged property
damage, punitive damages, civil penalties, injunctive relief and government
oversight costs.

ENVIRONMENTAL REMEDIATION
As of December 31, 2020, Occidental participated in or monitored remedial
activities or proceedings at 170 sites. The following table presents
Occidental's current and non-current environmental remediation liabilities as of
December 31, 2020 and 2019, the current portion of which is included in accrued
liabilities ($123 million in 2020 and $162 million in 2019) and the remainder in
deferred credits and other liabilities - environmental remediation liabilities
($1.03 billion in 2020 and $1.04 billion in 2019).
Occidental's environmental remediation sites are grouped into four categories:
National Priorities List (NPL) sites listed or proposed for listing by the EPA
on the CERCLA NPL and three categories of non-NPL sites - third-party sites,
Occidental-operated sites and closed or non-operated Occidental sites.

                                                                                           2020                                              2019
                                                                                    Remediation                                       Remediation
millions, except number of sites                         Number of Sites                Balance            Number of Sites                Balance
NPL sites                                                      35              $         447                     36              $         463
Third-party sites                                              69                        293                     74                        311
Occidental-operated sites                                      17                        144                     17                        154
Closed or non-operated Occidental sites                        49                        267                     50                        269
Total                                                         170              $       1,151                    177              $       1,197



As of December 31, 2020, Occidental's environmental liabilities exceeded $10
million each at 19 of the 170 sites described above, and 96 of the sites had
liabilities from $0 to $1 million each. As of December 31, 2020, two sites - the
Diamond Alkali Superfund Site and a former chemical plant in Ohio (both of which
are indemnified by Maxus Energy Corporation, as discussed further below) -
accounted for 92% of its liabilities associated with NPL sites. 17 of the 35 NPL
sites are indemnified by Maxus.
Five of the 69 third-party sites - a Maxus-indemnified chrome site in New
Jersey, a former copper mining and smelting operation in Tennessee, a former oil
field and a landfill in California, and an active refinery in Louisiana where
Occidental reimburses the current owner for certain remediation activities -
accounted for 76% of Occidental's liabilities associated with these sites. 9 of
the 69 third-party sites are indemnified by Maxus.
Five sites - oil and gas operations in Colorado and chemical plants in Kansas,
Louisiana, New York and Texas - accounted for 70% of the liabilities associated
with the Occidental-operated sites. Seven other sites - a landfill in Western
New York, a former refinery in Oklahoma, former chemical plants in California,
Michigan, Tennessee and Washington, and a closed coal mine in Pennsylvania -
accounted for 70% of the liabilities associated with closed or non-operated
Occidental sites.
Environmental remediation liabilities vary over time depending on factors such
as acquisitions or divestitures, identification of additional sites and remedy
selection and implementation. Occidental recorded environmental remediation
expenses of $36 million, $112 million and $47 million for the years ended
December 31, 2020, 2019, and 2018, respectively. Environmental remediation
expenses primarily relate to changes to existing conditions from past
operations. Based on current estimates, Occidental expects to expend funds
corresponding to approximately 45% of the year-end remediation balance over the
next three to four years with the remainder over the subsequent 10 or more
years. Occidental believes its range of reasonably possible additional losses
beyond those amounts currently recorded for environmental remediation for all of
its environmental sites could be up to $1.1 billion.

46 OXY 2020 FORM 10-K

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MAXUS ENVIRONMENTAL SITES
When Occidental acquired Diamond Shamrock Chemicals Company (DSCC) in 1986,
Maxus agreed to indemnify Occidental for a number of environmental sites,
including the Diamond Alkali Superfund Site (Site) along a portion of the
Passaic River. On June 17, 2016, Maxus and several affiliated companies filed
for Chapter 11 bankruptcy in Federal District Court in the State of Delaware.
Prior to filing for bankruptcy, Maxus defended and indemnified Occidental in
connection with clean-up and other costs associated with the sites subject to
the indemnity, including the Site.
In March 2016, the EPA issued a Record of Decision (ROD) specifying remedial
actions required for the lower 8.3 miles of the Lower Passaic River. The ROD
does not address any potential remedial action for the upper nine miles of the
Lower Passaic River or Newark Bay. During the third quarter of 2016, and
following Maxus's bankruptcy filing, Occidental and the EPA entered into an
Administrative Order on Consent (AOC) to complete the design of the proposed
clean-up plan outlined in the ROD at an estimated cost of $165 million. The EPA
announced that it will pursue similar agreements with other potentially
responsible parties.
Occidental has accrued a reserve relating to its estimated allocable share of
the costs to perform the design and remediation called for in the AOC and the
ROD, as well as for certain other Maxus-indemnified sites. Occidental's accrued
estimated environmental reserve does not consider any recoveries for indemnified
costs. Occidental's ultimate share of this liability may be higher or lower than
the reserved amount, and is subject to final design plans and the resolution of
Occidental's allocable share with other potentially responsible parties.
Occidental continues to evaluate the costs to be incurred to comply with the
AOC, the ROD and to perform remediation at other Maxus-indemnified sites in
light of the Maxus bankruptcy and the share of ultimate liability of other
potentially responsible parties. In June 2018, Occidental filed a complaint
under CERCLA in Federal District Court in the State of New Jersey against
numerous potentially responsible parties for reimbursement of amounts incurred
or to be incurred to comply with the AOC, the ROD, or to perform other
remediation activities at the Site.
In June 2017, the court overseeing the Maxus bankruptcy approved a Plan of
Liquidation (Plan) to liquidate Maxus and create a trust to pursue claims
against current and former parents YPF and each of its respective subsidiaries
and affiliates (YPF) and Repsol, S.A. and each of its respective subsidiaries
and affiliates (Repsol), as well as others to satisfy claims by Occidental and
other creditors for past and future cleanup and other costs. In July 2017, the
court-approved Plan became final and the trust became effective. The trust is
pursuing claims against YPF, Repsol and others and is expected to distribute
assets to Maxus' creditors in accordance with the trust agreement and Plan. In
June 2018, the trust filed its complaint against YPF and Repsol in Delaware
bankruptcy court asserting claims based upon, among other things, fraudulent
transfer and alter ego. During 2019, the bankruptcy court denied Repsol's and
YPF's motions to dismiss the complaint as well as their motions to move the case
away from the bankruptcy court. Discovery remains ongoing at the time of this
report.

ENVIRONMENTAL COSTS
Occidental's environmental costs, some of which include estimates, are presented
below for each segment for each of the years ended December 31:

millions                         2020       2019       2018
Operating Expenses
Oil and gas                   $ 176      $ 174      $  91
Chemical                         73         80         80
Midstream and marketing           4         12         10
Total                         $ 253      $ 266      $ 181
Capital Expenditures
Oil and gas                   $  74      $ 109      $  71
Chemical                         40         34         23
Midstream and marketing           1          4          2
Total                         $ 115      $ 147      $  96
Remediation Expenses
Corporate                     $  36      $ 112      $  47

Operating expenses are incurred on a continual basis. Capital expenditures relate to longer-lived improvements in properties currently operated by Occidental. Remediation expenses relate to existing conditions from past operations.



                                                            OXY 2020 FORM 10-K     47


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                               GLOBAL INVESTMENTS


A portion of Occidental's assets are located outside North America. The following table shows the geographic distribution of Occidental's assets at December 31, 2020 at both the segment and consolidated level related to Occidental's ongoing operations:



                                                                                 Midstream and        Corporate and
millions                                  Oil and gas           Chemical             marketing                other           Total Consolidated
North America
United States                         $     57,026          $   4,140          $      6,260          $     2,951          $            70,377
Canada                                           -                123                    22                    -                          145
Middle East                                  3,500                  -                 3,547                    -                        7,047
Latin America                                   33                 57                     -                    -                           90
Africa and Other                             2,372                  6                    27                    -                        2,405
Consolidated                          $     62,931          $   4,326          $      9,856          $     2,951          $            80,064


For the year ended December 31, 2020, net sales outside North America totaled $3.4 billion, or approximately 19% of total net sales.


                   CRITICAL ACCOUNTING POLICIES AND ESTIMATES



The process of preparing financial statements in accordance with generally
accepted accounting principles requires Occidental's management to make informed
estimates and judgments regarding certain items and transactions. Changes in
facts and circumstances or discovery of new information may result in revised
estimates and judgments and actual results may differ from these estimates upon
settlement but generally not by material amounts. The selection and development
of these policies and estimates have been discussed with the Audit Committee of
the Board of Directors. Occidental considers the following to be its most
critical accounting policies and estimates that involve management's judgment.

OIL AND GAS PROPERTIES
The carrying value of Occidental's property, plant and equipment (PP&E)
represents the cost incurred to acquire or develop the asset, including any
asset retirement obligations (AROs) and capitalized interest, net of DD&A and
any impairment charges. For assets acquired in a business combination, PP&E cost
is based on fair values at the acquisition date. Asset retirement obligations
and interest costs incurred in connection with qualifying capital expenditures
are capitalized and amortized over the useful lives of the related assets.
Occidental uses the successful efforts method to account for its oil and gas
properties. Under this method, Occidental capitalizes costs of acquiring
properties, costs of drilling successful exploration wells and development
costs. The costs of exploratory wells are initially capitalized pending a
determination of whether proved reserves have been found. If proved reserves
have been found, the costs of exploratory wells remain capitalized. For
exploratory wells that find reserves that cannot be classified as proved when
drilling is completed, costs continue to be capitalized as suspended exploratory
drilling costs if there have been sufficient reserves found to justify
completion as a producing well and sufficient progress is being made in
assessing the economic and operating viability of the project. At the end of
each quarter, management reviews the status of all suspended exploratory
drilling costs in light of ongoing exploration activities, in particular,
whether Occidental is making sufficient progress in its ongoing exploration and
appraisal efforts or, in the case of discoveries requiring government
sanctioning, analyzing whether development negotiations are underway and
proceeding as planned. If management determines that future appraisal drilling
or development activities are unlikely to occur, associated suspended
exploratory well costs are expensed.
Occidental expenses annual lease rentals, the costs of injectants used in
production and geological and geophysical costs as incurred for exploration
activities.
Occidental determines depreciation and depletion of oil and gas producing
properties by the unit-of-production method. It amortizes leasehold acquisition
costs over total proved reserves and capitalized development and successful
exploration costs over proved developed reserves.
Proved oil and gas reserves are those quantities of oil and gas which, by
analysis of geoscience and engineering data, can be estimated with reasonable
certainty to be economically producible-from a given date forward, from known
reservoirs, and under existing economic conditions, operating methods, and
government regulations-prior to the time at which contracts providing the right
to operate expire, unless evidence indicates that renewal is reasonably certain,
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regardless of whether deterministic or probabilistic methods are used for the
estimation. Occidental has no proved oil and gas reserves for which the
determination of economic producibility is subject to the completion of major
additional capital expenditures.
Several factors could change Occidental's proved oil and gas reserves. For
example, Occidental receives a share of production from PSCs to recover its
costs and generally an additional share for profit. Occidental's share of
production and reserves from these contracts decreases when product prices rise
and increases when prices decline. Generally, Occidental's net economic benefit
from these contracts is greater at higher product prices. In other cases,
particularly with long-lived properties, lower product prices may lead to a
situation where production of a portion of proved reserves becomes uneconomical.
For such properties, higher product prices typically result in additional
reserves becoming economical. Estimation of future production and development
costs is also subject to change partially due to factors beyond Occidental's
control, such as energy costs and inflation or deflation of oil field service
costs. These factors, in turn, could lead to changes in the quantity of proved
reserves. Additional factors that could result in a change of proved reserves
include production decline rates and operating performance differing from those
estimated when the proved reserves were initially recorded. Changes in the
political and regulatory climate could lead to decreases in proved reserves as
development horizons may be extended into the future.
Occidental performs impairment tests with respect to its proved properties
whenever events or circumstances indicate that the carrying value of property
may not be recoverable. If there is an indication the carrying amount of the
asset may not be recovered due to significant and prolonged declines in current
and forward prices, significant changes in reserve estimates, changes in
management's plans, or other significant events, management will evaluate the
property for impairment. Under the successful efforts method, if the sum of the
undiscounted cash flows is less than the carrying value of the proved property,
the carrying value is reduced to estimated fair value and reported as an
impairment charge in the period. Individual proved properties are grouped for
impairment purposes at the lowest level for which there are identifiable cash
flows. The fair value of impaired assets is typically determined based on the
present value of expected future cash flows using discount rates believed to be
consistent with those used by market participants. The impairment test
incorporates a number of assumptions involving expectations of future cash flows
which can change significantly over time. These assumptions include estimates of
future production, product prices, contractual prices, estimates of
risk-adjusted oil and gas proved and unproved reserves and estimates of future
operating and development costs. It is reasonably possible that prolonged
declines in commodity prices, reduced capital spending in response to lower
prices or increases in operating costs could result in additional impairments.
For impairment testing, unless prices are contractually fixed, Occidental uses
observable forward strip prices for oil and natural gas prices when projecting
future cash flows. Future operating and development costs are estimated using
the current cost environment applied to expectations of future operating and
development activities to develop and produce oil and gas reserves. Market
prices for oil, NGL and natural gas have been volatile and may continue to be
volatile in the future. Changes in global supply and demand, transportation
capacity, currency exchange rates, applicable laws and regulations and the
effect of changes in these variables on market perceptions could impact current
forecasts. Future fluctuations in commodity prices could result in estimates of
future cash flows to vary significantly.
Net capitalized costs attributable to unproved properties were $18.6 billion at
December 31, 2020, and $29.5 billion at December 31, 2019. The unproved amounts
are not subject to DD&A until they are classified as proved properties.
Individually insignificant unproved properties are combined and amortized on a
group basis based on factors such as lease terms, success rates and other
factors to provide for full amortization upon lease expiration or abandonment.
Significant unproved properties, primarily as a result of the Acquisition, are
assessed individually for impairment and when events or circumstances indicate
that the carrying value of property may not be recovered a valuation allowance
is provided if an impairment is indicated. Occidental periodically reviews
significant unproved properties for impairments; numerous factors are
considered, including but not limited to, availability of funds for future
exploration and development activities, current exploration and development
plans, favorable or unfavorable exploration activity on the property or the
adjacent property, geologists' evaluation of the property, the current and
projected political and regulatory climate, contractual conditions and the
remaining lease term for the properties. If an impairment is indicated,
Occidental will first determine whether a comparable transaction for similar
properties or implied acreage valuation derived from domestic onshore market
participants is available and will adjust the carrying amount of the unproved
property to its fair value using the market approach. In situations where the
market approach is not observable and unproved reserves are available,
undiscounted future net cash flows used in the impairment analysis are
determined based on managements' risk adjusted estimates of unproved reserves,
future commodity prices and future costs to produce the reserves. If
undiscounted future net cash flows are less than the carrying value of the
property, the future net cash flows are discounted and compared to the carrying
value for determining the amount of the impairment loss to record. Occidental
utilizes the same assumptions and methodology discussed above for cash flows
associated with proved properties.

                                                            OXY 2020 FORM 

10-K 49

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PROVED RESERVES
Occidental estimates its proved oil and gas reserves according to the definition
of proved reserves provided by the SEC and Financial Accounting Standards Board.
This definition includes oil, NGL and natural gas that geological and
engineering data demonstrate with reasonable certainty to be economically
producible in future periods from known reservoirs under existing economic
conditions, operating methods, government regulations, etc. (at prices and costs
as of the date the estimates are made). Prices include consideration of price
changes provided only by contractual arrangements and do not include adjustments
based on expected future conditions. For reserves information,
see the Supplemental Information on Oil and Gas Exploration and Production
Activities under Item 8 of this Form 10-K.
Engineering estimates of the quantities of proved reserves are inherently
imprecise and represent only approximate amounts because of the judgments
involved in developing such information. Occidental's estimates of proved
reserves are made using available geological and reservoir data as well as
production performance data. The reliability of these estimates at any point in
time depends on both the quality and quantity of the technical and economic data
and the efficiency of extracting and processing the hydrocarbons. These
estimates are reviewed annually by internal reservoir engineers and revised,
either upward or downward, as warranted by additional data. Revisions are
necessary due to changes in, among other things, development plans, reservoir
performance, prices, economic conditions and governmental restrictions as well
as changes in the expected recovery associated with infill drilling. Decreases
in prices, for example, may cause a reduction in some proved reserves due to
reaching economic limits at an earlier projected date. A material adverse change
in the estimated volume of proved reserves could have a negative impact on DD&A
and could result in property impairments.
The most significant ongoing financial statement effect from a change in
Occidental's oil and gas reserves or impairment of its proved properties would
be to the DD&A rate. For example, a 5% increase or decrease in the amount of oil
and gas reserves would change the DD&A rate by approximately $0.80/Bbl, which
would increase or decrease pre-tax income by approximately $330 million annually
at current production rates.

FAIR VALUES
Occidental estimates fair-value of long-lived assets for impairment testing,
assets and liabilities acquired in a business combination or exchanged in
non-monetary transactions, pension plan assets and initial measurements of AROs.
Accounting for the acquisition of a business requires the allocation of the
purchase price to the various assets and liabilities of the acquired business
and recording deferred taxes for any differences between the allocated values
and tax basis of assets and liabilities. Any excess of the purchase price over
the amounts assigned to assets and liabilities is recorded as goodwill. The
purchase price allocation is accomplished by recording each asset and liability
at its estimated fair value.
Occidental primarily applies the market approach for recurring fair value
measurements, maximizes its use of observable inputs and minimizes its use of
unobservable inputs. When estimating the fair values of assets acquired and
liabilities assumed, Occidental must apply various assumptions.

FINANCIAL ASSETS AND LIABILITIES
Occidental utilizes the mid-point between bid and ask prices for valuing the
majority of its financial assets and liabilities measured and reported at fair
value. In addition to using market data, Occidental makes assumptions in valuing
its assets and liabilities, including assumptions about the risks inherent in
the inputs to the valuation technique. For financial assets and liabilities
carried at fair value, Occidental measures fair value using the following
methods:

?Occidental values exchange-cleared commodity derivatives using closing prices
provided by the exchange as of the balance sheet date. These derivatives are
classified as using quoted prices in active markets for the assets or
liabilities (Level 1).
?Over-the-Counter (OTC) bilateral financial commodity contracts, international
exchange contracts, options and physical commodity forward purchase and sale
contracts are generally classified as using observable inputs other than quoted
prices for the assets or liabilities (Level 2) and are generally valued using
quotations provided by brokers or industry-standard models that consider various
inputs, including quoted forward prices for commodities, time value, volatility
factors, credit risk and current market and contractual prices for the
underlying instruments, as well as other relevant economic measures.
Substantially all of these inputs are observable in the marketplace throughout
the full term of the instrument and can be derived from observable data or are
supported by observable prices at which transactions are executed in the
marketplace.
?Occidental values commodity derivatives based on a market approach that
considers various assumptions, including quoted forward commodity prices and
market yield curves. The assumptions used include inputs that are generally
unobservable in the marketplace or are observable but have been adjusted based
upon various assumptions and the fair value is designated as using unobservable
inputs (Level 3) within the valuation hierarchy.
?Occidental values debt using market-observable information for debt instruments
that are traded on secondary markets. For debt instruments that are not traded,
the fair value is determined by interpolating the value based on debt with
similar terms and credit risk.

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NON-FINANCIAL ASSETS
Occidental uses market-observable prices for assets when comparable transactions
can be identified that are similar to the asset being valued. When Occidental is
required to measure fair value and there is not a market-observable price for
the asset or for a similar asset then the cost or income approach is used
depending on the quality of information available to support management's
assumptions. The cost approach is based on management's best estimate of the
current asset replacement cost. The income approach is based on management's
best assumptions regarding expectations of future net cash flows and the
expected cash flows are discounted using a commensurate risk-adjusted discount
rate. Such evaluations involve significant judgment. The results are based on
expected future events or conditions such as sales prices, estimates of future
oil and gas production or throughput, development and operating costs and the
timing thereof, economic and regulatory climates and other factors, most of
which are often outside of management's control. However, assumptions used
reflect a market participant's view of long-term prices, costs and other factors
and are consistent with assumptions used in Occidental's business plans and
investment decisions.
ENVIRONMENTAL LIABILITIES AND EXPENDITURES
Environmental expenditures that relate to current operations are expensed or
capitalized as appropriate. Occidental records environmental liabilities and
related charges and expenses for estimated remediation costs that relate to
existing conditions from past operations when environmental remediation efforts
are probable and the costs can be reasonably estimated. In determining the
environmental remediation liability and the range of reasonably possible
additional losses, Occidental refers to currently available information,
including relevant past experience, remedial objectives, available technologies,
applicable laws and regulations and cost-sharing arrangements. Occidental bases
its environmental remediation liabilities on management's estimate of the most
likely cost to be incurred, using the most cost-effective technology reasonably
expected to achieve the remedial objective. Occidental periodically reviews its
environmental remediation liabilities and adjusts them as new information
becomes available. Occidental records environmental remediation liabilities on a
discounted basis when it deems the aggregate amount and timing of cash payments
to be reliably determinable at the time the reserves are established. The
reserve methodology with respect to discounting for a specific site is not
modified once it is established. Presently none of its environmental remediation
liabilities are recorded on a discounted basis. Occidental generally records
reimbursements or recoveries of environmental remediation costs in income when
received, or when receipt of recovery is highly probable.
Many factors could affect Occidental's future remediation costs and result in
adjustments to its environmental remediation liabilities and the range of
reasonably possible additional losses. The most significant are: (1) cost
estimates for remedial activities may vary from the initial estimate; (2) the
length of time, type or amount of remediation necessary to achieve the remedial
objective may change due to factors such as site conditions, the ability to
identify and control contaminant sources or the discovery of additional
contamination; (3) a regulatory agency may ultimately reject or modify
Occidental's proposed remedial plan; (4) improved or alternative remediation
technologies may change remediation costs; (5) laws and regulations may change
remediation requirements or affect cost sharing or allocation of liability; and
(6) changes in allocation or cost-sharing arrangements may occur.
Certain sites involve multiple parties with various cost-sharing arrangements,
which fall into the following three categories: (1) environmental proceedings
that result in a negotiated or prescribed allocation of remediation costs among
Occidental and other alleged potentially responsible parties; (2) oil and gas
ventures in which each participant pays its proportionate share of remediation
costs reflecting its working interest; or (3) contractual arrangements,
typically relating to purchases and sales of properties, in which the parties to
the transaction agree to methods of allocating remediation costs. In these
circumstances, Occidental evaluates the financial viability of other parties
with whom it is alleged to be jointly liable, the degree of their commitment to
participate and the consequences to Occidental of their failure to participate
when estimating Occidental's ultimate share of liability. Occidental records its
environmental remediation liabilities at its expected net cost of remedial
activities and, based on these factors, believes that it will not be required to
assume a share of liability of such other potentially responsible parties in an
amount materially above amounts reserved.
In addition to the costs of investigations and cleanup measures, which often
take in excess of 10 years at CERCLA NPL sites, Occidental's environmental
remediation liabilities include management's estimates of the costs to operate
and maintain remedial systems. If remedial systems are modified over time in
response to significant changes in site-specific data, laws, regulations,
technologies or engineering estimates, Occidental reviews and adjusts its
environmental remediation liabilities accordingly.
If Occidental were to adjust the balance of its environmental remediation
liabilities based on the factors described above, the amount of the increase or
decrease would be recognized in earnings. For example, if the balance were
reduced by 10%, Occidental would record a pre-tax gain of $115 million. If the
balance were increased by 10%, Occidental would record an additional remediation
expense of $115 million.

INCOME TAXES
Occidental files various U.S. federal, state and foreign income tax returns. The
impact of changes in tax regulations are reflected when enacted. In general,
deferred federal, state and foreign income taxes are provided on temporary
differences between the financial statement carrying amounts of assets and
liabilities and their respective tax basis. Occidental routinely assesses the
realizability of its deferred tax assets. If Occidental concludes that it is
more likely than not that some of the
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10-K 51

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deferred tax assets will not be realized, the tax asset is reduced by a
valuation allowance. Occidental recognizes a tax benefit from an uncertain tax
position when it is more likely than not that the position will be sustained
upon examination, based on the technical merits of the position. The tax benefit
recorded is equal to the largest amount that is greater than 50% likely to be
realized through final settlement with a taxing authority. Interest and
penalties related to unrecognized tax benefits are recognized in income tax
expense (benefit). Occidental uses the flow-through method to account for its
investment tax credits.   See     Note 12 - Income Taxes   in the Notes to
Consolidated Financial Statements in Part II Item 8 of this Form 10-K.

LOSS CONTINGENCIES
Occidental is involved, in the normal course of business, in lawsuits, claims
and other legal proceedings and audits. Occidental accrues reserves for these
matters when it is probable that a liability has been incurred and the liability
can be reasonably estimated. In addition, Occidental discloses, in aggregate,
its exposure to loss in excess of the amount recorded on the balance sheet for
these matters if it is reasonably possible that an additional material loss may
be incurred. Occidental reviews its loss contingencies on an ongoing basis.
Loss contingencies are based on judgments made by management with respect to the
likely outcome of these matters and are adjusted as appropriate. Management's
judgments could change based on new information, changes in, or interpretations
of, laws or regulations, changes in management's plans or intentions, opinions
regarding the outcome of legal proceedings, or other factors. See   Note 11

- Lawsuits, Claims, Commitments and Contingencies in the Notes to Consolidated Financial Statements in Part II Item 8 of this Form 10-K for additional information.



                 SIGNIFICANT ACCOUNTING AND DISCLOSURE CHANGES



See   Note 2 - Accounting and Disclosure Changes   in the Notes to Consolidated
Financial Statements in Part II Item 8 of this Form 10-K for further information
on significant accounting and disclosure changes.

    SAFE HARBOR DISCUSSION REGARDING OUTLOOK AND OTHER FORWARD-LOOKING DATA



Portions of this report contain forward-looking statements within the meaning of
Section 27A of the Securities Act of 1933, as amended, and Section 21E of the
Securities Exchange Act of 1934, as amended. All statements other than
statements of historical fact are "forward-looking statements" for purposes of
federal and state securities laws, and they include, but are not limited to: any
projections of earnings, revenue or other financial items or future financial
position or sources of financing; any statements of the plans, strategies and
objectives of management for future operations or business strategy; any
statements regarding future economic conditions or performance; any statements
of belief; and any statements of assumptions underlying any of the foregoing.
Words such as "estimate," "project," "predict," "will," "would," "should,"
"could," "may," "might," "anticipate," "plan," "intend," "believe," "expect,"
"aim," "goal," "target," "objective," "likely" or similar expressions that
convey the prospective nature of events or outcomes are generally indicative of
forward-looking statements. You should not place undue reliance on these
forward-looking statements, which speak only as of the date of this report.
Unless legally required, Occidental does not undertake any obligation to update,
modify or withdraw any forward-looking statements as a result of new
information, future events or otherwise.
Although Occidental believes that the expectations reflected in any of its
forward-looking statements are reasonable, actual results may differ from
anticipated results, sometimes materially. Factors that could cause results to
differ from those projected or assumed in any forward-looking statement include,
but are not limited to: the scope and duration of the COVID-19 pandemic and
actions taken by governmental authorities and other third parties in response to
the pandemic; Occidental's indebtedness and other payment obligations, including
the need to generate sufficient cash flows to fund operations; Occidental's
ability to successfully monetize select assets, repay or refinance debt and the
impact of changes in Occidental's credit ratings; assumptions about energy
markets; global and local commodity and commodity-futures pricing fluctuations,
such as the sharp decline in crude oil prices that occurred in the first half of
2020; supply and demand considerations for, and the prices of, Occidental's
products and services; actions by OPEC and non-OPEC oil producing countries;
results from operations and competitive conditions; future impairments of our
proved and unproved oil and gas properties or equity investments, or write-downs
of productive assets, causing charges to earnings; unexpected changes in costs;
availability of capital resources, levels of capital expenditures and
contractual obligations; the regulatory approval environment, including
Occidental's ability to timely obtain or maintain permits or other governmental
approvals, including those necessary for drilling and/or development projects;
Occidental's ability to successfully complete, or any material delay of, field
developments, expansion projects, capital expenditures, efficiency projects,
acquisitions or dispositions; risks associated with acquisitions, mergers and
joint ventures, such as difficulties integrating businesses, uncertainty
associated with financial projections, projected synergies, restructuring,
increased costs and adverse tax consequences; uncertainties and liabilities
associated with acquired and divested properties and businesses; uncertainties
about the estimated quantities of oil, NGL and natural gas reserves;
lower-than-expected production from development projects or acquisitions;
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Occidental's ability to realize the anticipated benefits from prior or future
streamlining actions to reduce fixed costs, simplify or improve processes and
improve Occidental's competitiveness; exploration, drilling and other
operational risks; disruptions to, capacity constraints in, or other limitations
on the pipeline systems that deliver Occidental's oil and natural gas and other
processing and transportation considerations; general economic conditions,
including slowdowns, domestically or internationally, and volatility in the
securities, capital or credit markets; uncertainty from the expected
discontinuance of LIBOR and transition to any other interest rate benchmark;
governmental actions and political conditions and events; legislative or
regulatory changes, including changes relating to hydraulic fracturing or other
oil and natural gas operations, retroactive royalty or production tax regimes,
deepwater and onshore drilling and permitting regulations and environmental
regulation (including regulations related to climate change); environmental
risks and liability under international, provincial, federal, regional, state,
tribal, local and foreign environmental laws and regulations (including remedial
actions); potential liability resulting from pending or future litigation;
disruption or interruption of production or manufacturing or facility damage due
to accidents, chemical releases, labor unrest, weather, natural disasters, cyber
attacks or insurgent activity; the creditworthiness and performance of
Occidental's counterparties, including financial institutions, operating
partners and other parties; failure of risk management; Occidental's ability to
retain and hire key personnel; reorganization or restructuring of Occidental's
operations; changes in state, federal or foreign tax rates; and actions by third
parties that are beyond Occidental's control. The unprecedented nature of the
COVID-19 pandemic and recent market decline may make it more difficult to
identify potential risks, give rise to risks that are currently unknown or
amplify the impact of known risks.
Additional information concerning these and other factors that may cause
Occidental's results of operations and financial position to differ from
expectations can be found in Item 1A, "Risk Factors" and elsewhere in this Form
10-K, as well as in Occidental's other filings with the U.S. Securities and
Exchange Commission, including Occidental's Quarterly Reports on Form 10-Q and
Current Reports on Form 8-K.

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