Management's Discussion and Analysis of Financial Condition and Results of
Operations (MD&A) is intended to provide a narrative about our business from the
perspective of our management. Our MD&A is presented in the following sections:
•   Executive Overview  ;


•   Operating Outlook  ;


•   Results of Operations - E&P  ;


•   Results of Operations - Midstream  ;


•   Results of Operations - Corporate  ;


•   Liquidity and Capital Resources  ; and


•   Critical Accounting Policies and Estimates  .


The accompanying consolidated financial statements, including the notes thereto,
contain detailed information that should be read in conjunction with our MD&A.
For discussion related to changes in financial condition and results of
operations for 2018 as compared with 2017, refer to Part II, Item 7.
Management's Discussion and Analysis of Financial Condition and Results of
Operations in our 2018 Form 10-K, which was filed with the SEC on February 19,
2019.

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EXECUTIVE OVERVIEW
Industry Outlook
Commodity Prices The global oil and gas industry is cyclical, and commodity
prices can be volatile. Global crude oil prices are driven by crude oil supply,
which includes Organization of Petroleum Exporting Countries (OPEC) and non-OPEC
producers, and global crude oil demand. The outlook for 2020 crude oil prices
will continue to depend on supply and demand dynamics, as well as global
geopolitical and security factors in crude oil-producing nations. Production
cuts by OPEC and geopolitical factors in critical oil producing regions remain
constructive for global crude oil prices. However, a weakening of crude oil
demand amid signs of a potential softening in the global economy could result in
lower prices. In addition, US and China trade tensions threaten further damage
to global trade and economic growth and, consequently, crude oil demand.
The US domestic natural gas market remains oversupplied as production has
continued to grow due to drilling efficiencies, higher incremental volumes of
associated gas from oil wells and de-bottlenecking of transportation
infrastructure. Despite record domestic LNG exports and high natural gas fired
electric generation, natural gas inventories are projected to remain at or
slightly above historical five-year averages. As a result, natural gas prices
traded within a narrow range in 2019, with an expectation to continue as such in
2020. Natural gas price differentials increased in the DJ Basin, while
differentials in the Delaware Basin continue to be wide despite additional
pipeline capacity from the Delaware Basin to Corpus Christi, Texas. Additional
Delaware Basin natural gas pipeline expansions are targeted for in-service in
late 2020, which are expected to decrease these differentials.
US NGL prices are also suppressed amid increased production, high inventory
levels, and downstream fractionation and export bottlenecks. As new processing
and export facilities are brought online, NGL prices should benefit. During
2019, we added NGL commodity price hedges to our hedge portfolio.
The chart below shows the historical trends in benchmark prices for WTI crude
oil, Brent crude oil, Mont Belvieu composite NGLs, and US Henry Hub natural gas.
                   [[Image Removed: a201910kindexprices.jpg]]
Our Eastern Mediterranean GSPAs generally provide for an initial base price
subject to price indexation over the life of the contract and have a contractual
floor, which provides some protection from price volatility.
2019 Operating Focus
During 2019, our activities were focused on positioning the Company for
sustainable, long-term cash flows through the following initiatives:
Improving Cost Structure We focused on strong operational execution and cost
control to improve our cost structure for current and future operations. We
reduced capital spend, focusing on high-margin, high-return opportunities while
emphasizing safety and protection of the environment. Capital efficiencies
resulted in significantly lower well costs, driving overall capital spend nearly
$240 million lower than expected for the year. Unit production expenses were
also driven lower than expected, primarily due to US onshore cost initiatives.
Improving US Onshore Takeaway Capacity We successfully leveraged significant
pipeline expansion projects for increased flow assurance and improved crude oil
netback prices. In the DJ Basin, we entered into a strategic relationship with
Saddlehorn, acquiring additional capacity of long-term takeaway at lower cost.
In the Delaware Basin, we exercised options to acquire ownership interests in
EPIC Y-Grade and EPIC Crude Holdings, and partnered in the formation of the
Delaware Crossing joint venture. Through these investments, we gained access to
Gulf Coast pricing for certain of our Delaware Basin

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production when the EPIC Y-Grade Pipeline began interim crude oil service. We
continue to negotiate other pipeline contracts for lower cost arrangements.
Leviathan Phase I Development Having commenced production from the Leviathan
field on December 31, 2019, we are now ready for significant regional exports to
begin. We expect Leviathan production and regional sales will result in a
significant impact to our sustainable production profile, with material
increases in sales volumes and cash flows in 2020.
Progressing Natural Gas Monetization Offshore West Africa We continue to focus
on progressing natural gas monetization opportunities through development of a
regional natural gas hub offshore West Africa. During the year, we sanctioned
the Alen Gas Monetization project, which will result in low-cost access to
additional reserves and our entry into the global LNG markets in 2021.
Advancing Exploration Opportunities Although we have modified our exploration
activity in the low commodity price environment, we continue to pursue
opportunities that have low capital commitments, but which we perceive to have
potentially high impact. During the year, we farmed-in a significant new
opportunity offshore Colombia and progressed various exploration activities in
support of future drilling efforts in both US onshore and international
locations.
Completing Midstream Strategic Review  We conducted a strategic review of our
Midstream segment and elected to retain and increase our ownership in Noble
Midstream Partners. We concluded the review with the sale of substantially all
of our remaining US onshore midstream interests and assets and our incentive
distribution rights to Noble Midstream Partners for total consideration of $1.6
billion, including $670 million of cash and 38.5 million of newly issued Noble
Midstream Partners common units.
Maintaining Strong Balance Sheet We focused on maintaining our strong balance
sheet and financial liquidity, which totaled almost $4.5 billion at December 31,
2019. During the year, we early redeemed certain senior notes, extending the
average maturity of our total debt portfolio, which is approximately 16 years.
We maintained our investment grade rating across all agencies while returning
capital to investors through debt repayments and dividends.
Advancing Environmental, Social and Governance (ESG) Initiatives We continued
our focus on ESG initiatives by identifying opportunities to reduce
environmental impact, improve safety, support the communities in which we
operate through social investment, increase transparency, and the diversity of
our Board of Directors. We also finished 2019 with a record-low total recordable
incident rate in the US onshore.
OPERATING OUTLOOK
Growing Long-Term Value We believe the following guiding principles will
contribute to growing long-term value:
• Execution of a disciplined capital allocation process by:


•            designing a flexible investment program aligned with the current
             commodity price environment.

• Leveraging the benefits of our well-positioned and diversified portfolio,

including:




•            exercising investment optionality and flexibility afforded by our
             assets, certain of which are held by production; and

• continuing portfolio optimization actions to maximize strategic value.

• Enhancing capital efficiencies by:




•            utilizing our technical competencies and applying historical
             learnings from unconventional US shale plays to reduce US onshore
             exploration and development costs.

• Capitalizing on a currently low-cost offshore environment with execution

of high-quality, long-cycle development projects, such as:




•            continuing development offshore Israel and monetizing natural gas
             offshore West Africa.

• Maintaining financial strength through:

• focusing operational activities on high-margin, high-return assets; and

• improving overall corporate returns.

• Commitment to people and communities in which we operate by:

• being a safe and reliable operator;

• complying with applicable air quality rules and environmental regulations; and

• advancing ESG initiatives.





We believe our approach positions the Company for sustainability, operational
efficiency, and long-term success throughout the oil and gas business cycle.
Further, we expect our US onshore activity, combined with Leviathan natural gas
sales and efforts towards Alen Gas Monetization, will position us for
sustainable free cash flow generation in the future. However, if commodity
prices are suppressed for an extended period of time, we could experience
material negative impacts on our revenues, profitability, cash flows, liquidity
and proved reserves, and, in response, we may consider reductions in our capital
investment program or dividends, asset sales or actions to support our financial
position. Our production, cash flows, and our stock price could decline as a
result of these potential developments. See   Item 1A. Risk Factors   - Crude
oil, NGL and natural gas price

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volatility, including a substantial or extended decline in the price of these
commodities, could have a material adverse effect on our results of operations,
cash flows, liquidity, and the price of our common stock.
2020 Organic Capital Investment Program Our 2020 organic capital investment
program, which excludes Noble Midstream Partners and acquisition capital, is
designed to deliver near and long-term value and is flexible in the current
commodity price environment. The 2020 organic capital investment program is in
the range of $1.6 to $1.8 billion. The 2020 organic capital investment program
is approximately 25% below our 2019 organic capital expenditures, which reflects
lower spend on the Leviathan field offshore Israel. Approximately 75% of the
2020 organic capital budget is allocated to US onshore development, primarily in
the DJ and Delaware Basins, with the remainder allocated to progressing the Alen
Gas Monetization in West Africa, expanding gas deliverability in Israel and
costs for drilling an exploratory well offshore Colombia.
We plan to fund our capital investment program with cash flows from operations,
cash on hand, proceeds from divestments of non-strategic assets, borrowings
under our Revolving Credit Facility, and/or other sources of funding. See
  Liquidity and Capital Resources - Sources and Uses of Liquidity  .
Our 2020 production target is in the range of 385 MBoe/d to 405 MBoe/d. In our
US onshore business, we expect relatively flat production compared to 2019, with
an increase in DJ and Delaware Basin production offset by reductions in the
Eagle Ford Shale. We expect to have higher oil volumes in 2020 compared to 2019.
Potential for Future Impairments We have had in the past, and may incur in the
future, impairments of proved and unproved properties. Our impairment assessment
as of December 31, 2019 indicated that the carrying amounts of our DJ Basin and
Delaware Basin properties were not impaired. However, we believe our Delaware
Basin properties, in particular, may be at risk for future impairment. Our
Delaware Basin properties have significant book value associated with proved
reserves and unproved resources, which were acquired primarily through corporate
acquisitions. Through acquisition accounting, acquired asset values are recorded
at their estimated fair market values at the time of closing. In 2017, commodity
prices, specifically those for domestic NGLs and natural gas, were significantly
higher when compared to the current environment.
We believe that it is reasonably likely an impairment could be triggered if
there is a decrease in forward commodity price assumptions, a widening of basis
differentials, material changes to development plans or an increase in operating
or abandonment costs, among other factors. The variable which generates the most
significant change in undiscounted future net cash flows is generally the
forward commodity price outlook. For purposes of impairment assessment, where
contractual pricing is not applicable, our current assumption is based on a
five-year strip price for crude oil and natural gas, with prices subsequent to
the fifth year held constant. Should our assumptions regarding forward commodity
prices decline 5% or more beyond that used as of December 31, 2019, with all
other assumptions unchanged, our Delaware Basin properties would be at risk for
impairment. As of December 31, 2019, the carrying amount of our Delaware Basin
properties was $5.5 billion, of which $3.6 billion was attributable to proved
properties, including related Midstream segment assets, with $1.9 billion
attributable to unproved properties.
In addition, an extended commodity price downturn could result in the impairment
of other proved or unproved properties or long-lived assets, including equity
method investments, intangible assets, goodwill and/or right-of-use assets. A
future impairment of property or other long-lived asset could have a significant
impact on our deferred tax asset and liability balance, and potentially cause us
to establish valuation allowances for our deferred tax assets associated with
domestic net operating loss carryforwards, which would result in a corresponding
increase in income tax expense.
See   Item 1A. Risk Factors   - Crude oil, NGL and natural gas price volatility,
including a substantial or extended decline in the price of these commodities,
could have a material adverse effect on our results of operations, cash flows,
liquidity, and the price of our common stock.
RESULTS OF OPERATIONS - E&P
2019 Significant E&P Highlights:
• increased total average consolidated sales volumes by 3% to 355 MBoe/d, net;


•      increased average daily sales volumes for US onshore crude oil by 10% to

120 MBbl/d, net;

• reduced total production expense per BOE by 3% as compared to 2018;

• exceeded 2 Tcf, gross, of natural gas produced from the Tamar field since

commencement of operations;

• commenced production from the Leviathan field in December 2019;




•      invested in the EMG Pipeline, through our affiliate, EMED Pipeline B.V.,
       enabling future flow of natural gas production from offshore Israel to
       customers in Egypt;

• reduced capital expenditures, excluding acquisitions, by $571 million as

compared with 2018;

• drilled the Aseng 6P well, offshore Equatorial Guinea, and commenced

production in fourth quarter 2019; and

• sanctioned the Alen Gas Monetization project, offshore Equatorial Guinea.






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Following is a summarized statement of operations for our E&P business:


                                                    Year Ended December 31,
(millions)                                           2019             2018

Oil, NGL and Gas Sales to Third Parties $ 3,904 $ 4,461 Sales of Purchased Oil and Gas

                          109                

20


Income from Equity Method Investments and Other          69               132
Total Revenues                                        4,082             4,613
Production Expense                                    1,354             1,358
Exploration Expense                                     202               129
Depreciation, Depletion and Amortization              2,058             1,819
Gain on Divestitures, Net (1)                             -              (340 )
Asset Impairments (2)                                 1,160               169
Goodwill Impairment (2)                                   -             1,281
Cost of Purchased Oil and Gas                           107                20
Loss (Gain) on Commodity Derivative Instruments         143               (63 )
(Loss) Income Before Income Taxes                    (1,093 )             119


(1)  See   Item 8. Financial Statements and Supplementary Data - Note   4.
     Acquisitions and Divestitures.


(2)  See   Item 8. Financial Statements and Supplementary Data - Note   10.
     Impairments.


Average Oil, NGL and Gas Sales Volumes and Prices Average daily sales volumes from our share of production and average realized sales prices were as follows:


                              Average Sales Volumes                         

Average Realized Sales Prices


              Crude Oil &                                                

Crude Oil &


               Condensate       NGLs       Natural Gas      Total        

Condensate NGLs Natural Gas


                (MBbl/d)      (MBbl/d)      (MMcf/d)       (MBoe/d)       (Per Bbl)        (Per Bbl)        (Per Mcf)
Year Ended December 31, 2019
United States        120           68             516          274     $       55.68     $     14.32     $        1.83
Eastern
Mediterranean          -            -             223           37                 -               -              5.55
West Africa
(1)                   13            -             186           44             61.03               -              0.27
Total
Consolidated
Operations           133           68             925          355             56.21           14.32              2.41
Equity
Investment
(2)                    2            4               -            6             58.65           31.77                 -
Total                135           72             925          361     $       56.24     $     15.40     $        2.41
Year Ended December 31, 2018
United States
(3)                  114           62             472          255     $       61.12     $     25.88     $        2.53
Eastern
Mediterranean          -            -             237           40                 -               -              5.47
West Africa
(1)                   16            -             213           51             68.53               -              0.27
Total
Consolidated
Operations           130           62             922          346             62.01           25.88              2.76
Equity
Investment
(2)                    2            5               -            7             68.99           42.14                 -
Total                132           67             922          353     $       62.10     $     27.18     $        2.76

(1) Natural gas from the Alba field is sold under contract for $0.25 per MMBtu


     to a methanol plant, an LPG plant, an LNG plant and a power generation
     plant. The methanol and LPG plants are owned by affiliated entities
     accounted for under the equity method. See   Items 1. and 2. Business and
     Properties - Delivery Commitments - West Africa Agreements  .


(2)  Volumes represent sales of condensate and LPG from the LPG plant in

Equatorial Guinea. See Income from Equity Method Investments and Other.

(3) Includes 7 MBoe/d for 2018 related to Gulf of Mexico assets sold in second


     quarter 2018. See   Item 8. Financial Statements and Supplementary Data -
     Note   4. Acquisitions and Divestitures.



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An analysis of revenues from sales of crude oil, NGLs and natural gas is as
follows:
                                             Crude Oil &                       Natural
(millions)                                    Condensate          NGLs           Gas           Total
Year Ended December 31, 2018              $       2,945        $     587     $      929     $   4,461
Changes due to
Increase (Decrease) in Sales Volumes                 68               48            (15 )         101
Decrease in Sales Prices (1)                       (277 )           (281 )         (100 )        (658 )
Year Ended December 31, 2019              $       2,736        $     354     $      814     $   3,904

(1) Changes exclude impacts of commodity derivative instruments. See Item 8.

Financial Statements and Supplementary Data - Note 14. Derivative

Instruments and Hedging Activities.

Crude Oil and Condensate Sales Revenues Revenues from crude oil and condensate sales decreased in 2019 as compared with 2018 due to the following: • 9% decrease in average realized prices (see factors impacting global


       pricing at   Executive Overview - Industry Outlook  );


•      reduction in sales volumes of 5 MBbl/d due to the sale of our Gulf of
       Mexico assets in second quarter 2018; and


•      lower offshore West Africa sales volumes of 3 MBbl/d due to timing of
       liftings and natural field decline;

partially offset by: • higher US onshore sales volumes of 11 MBbl/d primarily due to an increase

in development activity in the DJ and Delaware Basins.




NGL Sales Revenues Revenues from NGL sales decreased in 2019 as compared with
2018 due to the following:
•      43% decrease in average realized prices (see factors impacting global

pricing at Executive Overview - Industry Outlook ); and

• lower Eagle Ford Shale sales volumes of 6 MBbl/d due to reduced activity

and natural field decline;

partially offset by: • higher sales volumes of 12 MBbl/d in the DJ and Delaware Basins due to an

increase in development activities.




Natural Gas Sales Revenues Revenues from natural gas sales decreased in 2019 as
compared with 2018 due to the following:
•      13% decrease in average realized prices (see factors impacting global

pricing at Executive Overview - Industry Outlook );

• lower Eagle Ford Shale sales volumes of 41 MMcf/d due to reduced activity

and natural field decline;

• lower West Africa sales volumes of 28 MMcf/d due to natural field decline


       and planned maintenance at onshore facilities during first quarter 2019,
       which required shut-in for a portion of the period; and


•      lower Israel sales volumes of 14 MMcf/d primarily due to the sale of a
       7.5% interest in the Tamar field in March 2018;

partially offset by: • higher sales volumes of 91 MMcf/d in the DJ and Delaware Basins due to an

increase in development activity.




Sales and Cost of Purchased Oil and Gas  Sales and cost of purchased oil and gas
increased in 2019 as compared with 2018 as we engaged in a full year of
third-party sales and purchases of crude oil in the DJ Basin in 2019 compared
with only fourth quarter sales and purchases in 2018. We enter into these
arrangements for flow assurance on pipelines used to deliver our production to
market and to cover shortfalls in equity production.
Income from Equity Method Investments and Other  Our share of operations of
equity method investments were as follows:
                                Year Ended December 31,
                                    2019                 2018
Net Income (millions)
AMPCO and Affiliates    $         23                    $   64
Alba Plant                        41                        71
Dividends (millions)
AMPCO and Affiliates    $          9                    $   63
Alba Plant                        42                        93
Sales Volumes
Methanol (Mt/d)                1,091                     1,230
Condensate (MBbl/d)                2                         2
LPG (MBbl/d)                       4                         5
Average Realized Prices



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Methanol (per Mt)    $ 269.73    $ 379.62
Condensate (per Bbl)    58.65       68.99
LPG (per Bbl)           31.77       42.14


Income from equity method investments decreased for 2019 as compared with 2018
due to the following:
•      decrease in net income from AMPCO and affiliates primarily due to lower

realized methanol prices; and

• decrease in net income from Alba Plant primarily due to lower realized LPG


       prices.



Production Expense Components of production expense were as follows: (millions, except unit Total per BOE

                       United     

Eastern


rate)                           (1)(2)           Total         States (2)        Mediterranean        West Africa
Year Ended December 31,
2019
Lease Operating Expense     $        4.42     $      573     $        460     $              37     $          76
Production and Ad Valorem
Taxes                                1.30            169              169                     -                 -
Gathering, Transportation
and Processing                       4.62            599              598                     1                 -
Other Royalty Expense                0.10             13               13                     -                 -
Total Production Expense    $       10.44     $    1,354     $      1,240     $              38     $          76
Total Production Expense
per BOE                                       $    10.44     $      12.41     $            2.78     $        4.73
Year Ended December 31,
2018
Lease Operating Expense     $        4.78     $      603     $        480     $              26     $          97
Production and Ad Valorem
Taxes                                1.46            184              184                     -                 -
Gathering, Transportation
and Processing                       4.22            533              533                     -                 -
Other Royalty Expense                0.30             38               38                     -                 -
Total Production Expense    $       10.76     $    1,358     $      1,235     $              26     $          97
Total Production Expense
per BOE                                       $    10.76     $      13.28     $            1.79     $        5.20

(1) Consolidated unit rates exclude sales volumes and expenses attributable to

equity method investments.

(2) US production expense includes charges from our midstream operations that

are eliminated on a consolidated basis. See Item 8. Financial Statements

and Supplementary Data - Note 3. Segment Information.





Production expense decreased in 2019 as compared with 2018 primarily due to the
following:
•      decrease in US lease operating expense primarily due to the sale of our
       Gulf of Mexico assets and cost reduction efforts, notably workover
       reductions and compression optimization, in the US onshore basins; and

• decrease in other royalty expense due to lower commodity prices;

• decrease in West Africa lease operating expense due to cost reduction

efforts across all assets; and

• decrease in production and ad valorem taxes due to production tax refunds;

partially offset by: • increase in US gathering, transportation and processing (GTP) expense


       primarily due to increased development activity in the DJ Basin and
       higher-cost Delaware Basin; and

• increase in Eastern Mediterranean lease operating expense due to planned

maintenance activities.





The decrease in the unit rate per BOE for 2019 compared to 2018 is primarily due
to cost reduction efforts in US onshore basins and West Africa, partially offset
by an increase in GTP expense and an increase in volumes from higher-cost areas
within US onshore.
Exploration Expense  The increase in exploration expense for 2019 is primarily
due to the write-off of $100 million of Leviathan Deep exploratory well costs.
This increase was partially offset by reductions in lease rentals and staff
expense as compared with 2018. See   Item 8. Financial Statements and
Supplementary Data - Note   6. Capitalized Exploratory Well Costs and
Undeveloped Leasehold Costs.

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Depreciation, Depletion and Amortization (DD&A) Expense DD&A expense was as follows:


                                                                       Eastern

(millions, except unit rate) Total United States Mediterranean West Africa Other Int'l Year Ended December 31, 2019 DD&A Expense (1)

$   2,058     $         1,907     $              67     $          83     $            1

Unit Rate per BOE (2) $ 15.88 $ 19.09 $

   4.91     $        5.16     $            -
Year Ended December 31, 2018
DD&A Expense (1)               $   1,819     $         1,642     $              60     $         115     $            2
Unit Rate per BOE (2)          $   14.42     $         17.66     $            4.13     $        6.17     $            -

(1) DD&A expense includes accretion of discount on asset retirement obligations

(AROs) of $43 million in 2019 and $33 million in 2018.

(2) Consolidated rates exclude sales volumes and expenses attributable to equity


     method investments.



Total DD&A expense increased in 2019 as compared with 2018 primarily due to the
following:
•      capital investment and development activities in the DJ and Delaware
       Basins resulting in higher sales volumes; and


•      increase in Eastern Mediterranean primarily due to the retirement of
       certain capital assets resulting in accelerated depreciation;

partially offset by: • decrease resulting from the sale of our Gulf of Mexico assets in second

quarter 2018; and

• reduced sales volumes in West Africa, as noted above, from natural field

decline.




The unit rate per BOE for 2019 increased as compared with 2018 due to increased
development activity in the higher cost oil-rich Delaware Basin and the 2018
sale of lower-cost Tamar reserves, which increased the overall unit rate per
BOE. The increase in unit rate is partially offset by the sale of higher-cost
production from the Gulf of Mexico assets in second quarter 2018.
Loss (Gain) on Commodity Derivative Instruments  Commodity derivative activity
was as follows:
For 2019, the loss on commodity derivative instruments was due to the following:
• net cash receipt of $32 million; and


•      net non-cash decrease of $175 million in the fair value of our net
       commodity derivative liability, primarily driven by increases in the
       forward commodity price curve for crude oil.

For 2018, gain on commodity derivative instruments included: • net cash payment of $161 million; and

• net non-cash increase of $224 million in the fair value of our net

commodity derivative asset, primarily driven by decreases in the forward

commodity price curve for crude oil.




See   Item 8. Financial Statements and Supplementary Data - Note   14.
Derivative Instruments and Hedging Activities.
RESULTS OF OPERATIONS - MIDSTREAM
2019 Significant Midstream Highlights:
•      sold substantially all of our US onshore midstream interests and assets
       and our incentive distribution rights to Noble Midstream Partners for
       total consideration of $1.6 billion;

• expanded our long-haul business by developing strategic relationships in

the Delaware Basin, exercising investment options in EPIC Y-Grade and EPIC

Crude Holdings, and forming the Delaware Crossing crude oil pipeline joint

venture, with total equity contributions of approximately $590 million;


       and


•      secured long-term takeaway at a lower cost in the DJ Basin through a
       strategic relationship with Saddlehorn.


Following is a summarized statement of operations for the Midstream segment:


                                                Year Ended December 31,
(millions)                                        2019             2018

Midstream Services Revenues - Third Party $ 94 $ 78 Sales of Purchased Oil and Gas

                      190                142
(Loss) Income from Equity Method Investments        (18 )               40
Intersegment Revenues                               427                351
Total Revenues                                      693                611



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Operating Costs and Expenses               150      128

Depreciation, Depletion and Amortization 104 87 Gain on Divestiture, Net

                     -     (503 )
Asset Impairments                            -       37
Cost of Purchased Oil and Gas              181      136
Total Expense (Income)                     435     (115 )
Income Before Income Taxes               $ 258    $ 726



Midstream Services Revenues - Third Party The amount of revenue generated by the
Midstream segment depends primarily on the volumes of crude oil, natural gas and
water for which services are provided to dedicated acreage for our E&P business
and to third-party customers. These volumes are affected by the level of
drilling and completion activity and by changes in the supply of, and demand
for, crude oil, NGLs and natural gas in the markets served directly or
indirectly by our midstream assets.
Midstream segment services revenues for 2019 increased $16 million as compared
with 2018 primarily due to increases in crude oil, natural gas and produced
water gathering services and fresh water delivery. The increases were due
primarily to higher Delaware Basin throughput volumes, a full year of services
in the Mustang IDP and a full year of services related to the Black Diamond
System, which was acquired in first quarter 2018.
Sales and Cost of Purchased Oil and Gas Sales and cost of purchased oil and gas
for 2019 increased $48 million as compared with 2018 due to an increase in
throughput volumes driven by additional well connections.
(Loss) Income from Equity Method Investments  The 2019 amount decreased as
compared to 2018 due to operating costs incurred by Noble Midstream Partners'
equity method investments prior to commencement of full service operations, as
well as a decrease in income of $24 million due to the sale of our investments
in CONE Gathering LLC and CNX Midstream Partners LP (NYSE: CNXM) in 2018.
Operating Costs and Expenses Total expense for 2019 increased by $22 million as
compared with 2018 due to an increase in gathering systems operating expense
associated with the Delaware Basin CGFs that were completed in 2018, additional
expenses associated with the Black Diamond System and expenses associated with
the commencement of gathering services in the Mustang IDP in 2018.
DD&A Expense DD&A expense for 2019 increased by $17 million as compared with
2018 primarily due to certain assets being placed in service throughout 2018,
including the Mustang IDP gathering system, the Delaware Basin CGFs, and
additional Black Diamond assets. In addition, DD&A expense includes a full year
of amortization related to intangible assets acquired in the Saddle Butte
acquisition.
Gain on Divestitures, Net See   Item 8. Financial Statements and Supplementary
Data - Note   4. Acquisitions and Divestitures.
Asset Impairments See   Item 8. Financial Statements and Supplementary Data -
Note   10. Impairments.
RESULTS OF OPERATIONS - CORPORATE
Interest expenses and other debt-related costs, headquarters depreciation,
corporate G&A expenses, exit costs and certain other costs associated with
mitigating the effects of our retained Marcellus Shale transportation agreements
are recorded at the Corporate level.
Transportation Exit Cost Revenues and expenses associated with retained
Marcellus Shale firm transportation contracts were as follows:
                                        Year Ended December 31,
(millions)                                   2019               2018
Sales of Purchased Gas (1)        $       90                   $ 113
Cost of Purchased Gas (1)                143                     140
Firm Transportation Exit Cost (2)         88                       -


(1) Relates to third-party mitigation activities we engage in to utilize a

portion of our Marcellus Shale transportation commitments. Cost of purchased

gas includes utilized and unutilized transportation expense.

(2) Includes exit costs related to future commitments to a third-party resulting

from a permanent capacity assignment.

See Item 8. Financial Statements and Supplementary Data - Note 11. Exit Cost - Transportation Commitments.


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General and Administrative Expense G&A expense was as follows:


                                   Year Ended December 31,
(millions, except unit rate)            2019               2018
G&A Expense                  $         416                $  385
Unit Rate per BOE (1)        $        3.21                $ 3.05

(1) Consolidated unit rates exclude sales volumes and expenses attributable to

equity method investments.




The 2019 increase to G&A is primarily due to incentive compensation awards,
which reflected strong operating performance and major project execution. The
increase in the unit rate per BOE for 2019 as compared with 2018 was due to the
increase in G&A expense, partially offset by the increase in total sales
volumes.
G&A expense is impacted by the number of stock-based awards, the market price of
our common stock and price volatility which may result in a higher or lower fair
value of stock-based awards as calculated using various valuation models. G&A
expense included stock-based compensation expense of $59 million in 2019 and $54
million in 2018. See   Item 8. Financial Statements and Supplementary Data -
Note   16. Stock-Based and Other Compensation Plans.
Loss on Extinguishment of Debt or Facility See   Item 8. Financial Statements
and Supplementary Data - Note   8. Long-Term Debt.
Interest Expense and Capitalized Interest  Interest expense and capitalized
interest were as follows:
                                 Year Ended December 31,
(millions, except unit rate)      2019             2018
Interest Expense             $       362       $       355
Capitalized Interest                (102 )             (73 )
Interest Expense, Net        $       260       $       282
Unit Rate per BOE (1)        $      2.01       $      2.23

(1) Consolidated unit rates exclude sales volumes and expenses attributable to

equity method investments.




Interest expense for 2019 increased slightly as compared with 2018. See   Item
8. Financial Statements and Supplementary Data - Note   8. Long-Term Debt.
Capitalized interest for 2019 increased as compared with 2018 primarily due to
higher work in progress amounts related to Leviathan development and additions
to our Midstream segment equity method investments engaged in construction
activities.
The unit rate per BOE for 2019 decreased as compared with 2018, primarily due to
the reduction in net interest expense and the increase in total sales volumes.
Income Taxes See   Item 8. Financial Statements and Supplementary Data - Note
  13. Income Taxes.
LIQUIDITY AND CAPITAL RESOURCES
Capital Structure/Financing Strategy
In seeking to effectively fund development and monetize our discovered
hydrocarbons, we employ a capital structure and financing strategy designed to
provide sufficient liquidity throughout commodity price cycles, including a
sustained period of low prices. We strive to retain the ability to fund long
cycle, multi-year, capital intensive development projects throughout a range of
scenarios, while also funding a continuing exploration program and maintaining
capacity to capitalize on financially attractive merger and acquisition
opportunities. We endeavor to maintain a strong balance sheet and an investment
grade debt rating in service of these objectives.
We strive to maintain a minimum liquidity level to address volatility and risk.
Our sources of liquidity are primarily cash flows from operations, cash on hand,
proceeds from divestitures of properties and other investments, commercial paper
borrowings and available borrowing capacity under our Revolving Credit
Facilities (defined below). We occasionally access the capital markets to ensure
adequate liquidity exists in the form of unutilized capacity under our Revolving
Credit Facilities or to refinance scheduled debt maturities.
We may from time to time seek to retire or purchase our outstanding senior notes
through cash purchases in the open market, privately negotiated transactions or
otherwise. Such repurchases, if any, will depend on prevailing market
conditions, our liquidity requirements, contractual restrictions and other
factors.
We also evaluate potential strategic farm-out arrangements of our working
interests for reimbursement of our capital spending. We periodically consider
repatriations of foreign cash to increase our financial flexibility and fund our
capital investment program. Additionally, we enter into commodity price hedging
arrangements in an effort to mitigate the effects of commodity price volatility
and enhance the predictability of cash flows relating to the marketing of a
portion of our crude oil and natural gas production.

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In 2019, we funded our capital investment program with cash flows from
operations, cash on hand, commercial paper borrowings, proceeds from divestments
of non-strategic assets, proceeds from the Midstream segment asset divestiture
to Noble Midstream Partners, and other sources of funding. During the year, we
did not repurchase any shares of Noble Energy common stock under the Board of
Directors-authorized $750 million share repurchase program. As a result of our
financing activities, we ended 2019 with almost $4.5 billion in liquidity,
including $4.0 billion of availability under our Noble Energy Revolving Credit
Facility.
2019 Significant Financing Highlights
• initiated a commercial paper program;


•      issued and redeemed notes, lowering interest expense and extending debt
       maturities;

• established a new Noble Midstream Partners term loan;

• increased the Noble Midstream Services Revolving Credit Facility capacity

to almost $1.2 billion;

• secured a $200 million preferred equity commitment at Noble Midstream

Partners; and

• completed our midstream asset sale and simplification to Noble Midstream


       Partners.


Available Liquidity
Our operating cash flows are a significant source of liquidity. Additional
sources of funding were available through debt financing activities, as
described above. Overall, we expect to support our 2020 capital investment
program with cash flows from operations, cash on hand, proceeds from divestments
of non-strategic assets, issuances of commercial paper, borrowings under our
Revolving Credit Facilities, and/or other sources of funding.
We believe our current liquidity level and balance sheet, along with our ability
to access the capital markets, provide flexibility and that we are
well-positioned to fund our business throughout the commodity price cycle. We
will continue to evaluate the commodity price environment and our level of
capital spending throughout 2020. A downgrade below our current investment grade
rating could trigger requirements to post collateral as financial assurance of
performance under certain contractual arrangements. See   Item 1A. Risk
Factors   - Indebtedness may limit our liquidity and financial flexibility.
The table below summarizes our cash, debt balances and available liquidity.
                                      December 31, 2019                                 December 31, 2018
                         Noble Energy                                     Noble Energy
                           Excluding                                        Excluding
(millions, except       Noble Midstream   Noble Midstream                Noble Midstream   Noble Midstream
percentages)               Partners          Partners         Total         Partners           Partners         Total
Total Cash (1)          $         471     $          13     $    484     $         707     $           12     $    719
Amounts Available for
Borrowing (2)                   4,000                 -        4,000             4,000                  -        4,000
Total Liquidity         $       4,471     $          13     $  4,484     $       4,707     $           12     $  4,719

Total Debt (3)          $       6,089     $       1,495     $  7,584     $       6,115     $          560     $  6,675
Noble Energy Share of
Equity                                                      $  8,410                                          $  9,426
Ratio of Debt-to-Book
Capital (4)                                                       47 %                                              41 %

(1) Total cash includes $3 million of restricted cash at December 31, 2018.

(2) Excludes amounts available to be borrowed under the Noble Midstream Services


     Revolving Credit Facility, which is not available to Noble Energy for
     general corporate purposes.

(3) Total debt excludes unamortized debt discount/premium and debt issuance

costs. See Item 8. Financial Statements and Supplementary Data - Note 8.

Long-Term Debt

(4) We define our ratio of debt-to-book capital as total debt divided by the sum

of total debt plus Noble Energy's share of equity.




Cash and Cash Equivalents  We had approximately $484 million in cash and cash
equivalents at December 31, 2019, $383 million of which is attributable to our
foreign subsidiaries.
Revolving Credit Facilities  Noble Energy's $4.0 billion unsecured revolving
credit facility (Revolving Credit Facility) and Noble Midstream Services'
revolving credit facility (Noble Midstream Services Revolving Credit Facility),
which was increased from $800 million to almost $1.2 billion in fourth quarter
2019, both mature in 2023. These facilities are used to fund capital investment
programs and acquisitions and may periodically provide amounts for working
capital purposes. At December 31, 2019, no amounts were outstanding under Noble
Energy's Revolving Credit Facility, and no commercial paper borrowings were
outstanding, leaving the entire $4.0 billion available for borrowing. At
December 31, 2019, $595 million was outstanding under the Noble Midstream
Services Revolving Credit Facility, leaving $555 million of remaining
availability. See   Item 8. Financial Statements and Supplementary Data - Note

8. Long-Term Debt.


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Commercial Paper Program Supported by our investment grade credit rating, in
2019 we established a commercial paper program to provide for short-term funding
needs. The program allows for Noble to issue a maximum of $4.0 billion of
unsecured commercial paper notes, supported by Noble Energy's Revolving Credit
Facility. The commercial paper program was a significant source of liquidity
during 2019. All amounts outstanding were repaid prior to December 31, 2019. See
  Item 8. Financial Statements and Supplementary Data - Note   8. Long-Term
Debt.
Senior Note Issuance and Redemption In October 2019, we issued $500 million of
3.25% senior notes due October 15, 2029 and $500 million of 4.20% senior notes
due October 15, 2049. Proceeds from the issuance were used to fund the early
tender offer and redemption of our $1.0 billion 4.15% notes due December 15,
2021. As a result, we paid a premium of $44 million on the extinguishment of
debt and recognized a loss in fourth quarter 2019. The transactions resulted in
reduced future interest costs and extended debt maturity dates. See   Item 8.
Financial Statements and Supplementary Data - Note   8. Long-Term Debt.
Noble Midstream Services 2019 Term Loan Credit Facility In August 2019, Noble
Midstream Services entered into a term loan agreement, which provides for a
three-year senior unsecured term loan credit facility, due August 23, 2022 (2019
Noble Midstream Services Term Loan Credit Facility), that permits aggregate
borrowings of up to $400 million. Proceeds from the term loan were primarily
used to repay a portion of the outstanding borrowings under the Noble Midstream
Services Revolving Credit Facility. See   Item 8. Financial Statements and
Supplementary Data - Note   8. Long-Term Debt.
Noble Midstream Services 2018 Term Loan Credit Facility In July 2018, Noble
Midstream Services entered into a term loan agreement, which provides for a
three-year senior unsecured term loan credit facility, due July 31, 2021 (2018
Noble Midstream Services Term Loan Credit Facility), that permits aggregate
borrowings of up to $500 million. As of December 31, 2019, $500 million was
outstanding under this facility, which was used to repay amounts outstanding
under the Noble Midstream Services Revolving Credit Facility. See   Item 8.
Financial Statements and Supplementary Data - Note   8. Long-Term Debt.
Mezzanine Equity Commitment In March 2019, Noble Midstream Partners obtained a
$200 million preferred equity commitment. $100 million of the commitment funded
immediately and the remaining $100 million is available for funding until March
2020, subject to certain conditions precedent. See   Item 8. Financial
Statements and Supplementary Data - Note   1. Summary of Significant Accounting
Policies.
Asset Sale to Noble Midstream Partners   We received approximately $1.6
billion in consideration from the sale of substantially all of our remaining
midstream interests and assets to Noble Midstream Partners. Consideration
included approximately $670 million in cash, of which $420 million was funded by
the Noble Midstream Services Revolving Credit Facility and approximately $250
million was funded by a private placement of Noble Midstream Partners common
units. See   Note   4. Acquisitions and Divestitures.
Dividends We funded a 9% dividend increase in 2019. See   Item 5. Market for
Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of
Equity Securities.
Cash Flows
The following table summarizes our net cash flows from operating, investing and
financing activities:
                                                                      Year Ended December 31,
(millions)                                                             2019             2018
Total Cash Provided By (Used in)
Operating Activities                                              $     1,998       $     2,336
Investing Activities                                                   (3,138 )          (1,931 )
Financing Activities                                                      905              (399 )

Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash $ (235 ) $ 6




Operating Activities   The decrease in cash provided by operating activities in
2019 compared with 2018 was primarily driven by a decrease in revenues resulting
from lower commodity prices, partially offset by increases in sales volumes and
lower production costs attributable to cost saving initiatives. In addition, we
received cash settlements of commodity derivative instruments for $32 million in
2019, compared with cash payments of $161 million in 2018 and we made cash
interest payments related to outstanding debt of $310 million in 2019 compared
with $343 million in 2018.
Investing Activities  Increases in cash used in investing activities primarily
related to funding of new equity method investments of $799 million in 2019
compared with zero in 2018 and reduced divestiture activity resulting in
proceeds from divestitures of $173 million in 2019 compared with $2.0 billion in
2018. These amounts were partially offset by cash used in acquisitions of $653
million in 2018, compared to none in 2019, as well as a $755 million decrease in
spending on property, plant and equipment driven by our focus on improving cost
structure and capital efficiencies during 2019, lower investment in

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midstream infrastructure, and the timing of Leviathan field development costs, which were lower in 2019 than the peak year of capital investment in 2018. See


  Item 8. Financial Statements and Supplementary Data - Note   4. Acquisitions
and Divestitures and   Item 8. Financial Statements and Supplementary Data -
Note   5. Equity Method Investments.
Financing Activities  Increases in cash provided by financing activities include
net borrowings of $535 million in 2019 on the Noble Midstream Services Revolving
Credit Facility, compared with net repayments of $25 million in 2018, and having
no net repayments under the Revolving Credit Facility in 2019 compared with $230
million in 2018. Additionally, repayments of senior notes, net of proceeds from
senior note issuances, was $53 million in 2019 compared with $384 million of
repayments in 2018. In 2019, Noble Midstream Partners received net proceeds of
$243 million from the issuance of Noble Midstream Partners common units, which
was used to fund Noble Midstream Partners' acquisition of our remaining
midstream assets. We did not repurchase shares under our share repurchase
program in 2019, compared with spending of $295 million in 2018. In 2019, we
received contributions from noncontrolling interest owners of $37 million
compared with $353 million in 2018.
See   Item 8. Financial Statements and Supplementary Data - Note   4.
Acquisitions and Divestitures,   Item 8. Financial Statements and Supplementary
Data - Note   8. Long-Term Debt and   Item 8. Financial Statements and
Supplementary Data - Consolidated Statements of Cash Flows  .
Acquisition and Capital Expenditures
Our expenditures (on an accrual basis) were as follows:
                                                  Year Ended December 31,
(millions)                                            2019               

2018


Unproved Property Acquisition (1)            $         37              $    41
Proved Property Acquisition                             4                    -
Exploration                                            38                   25
Development                                         2,074                2,658
Midstream                                             230                  727
Corporate                                              66                   60
Total                                        $      2,449              $ 3,511

Additions to Equity Method Investments(2)
EMED Pipeline B.V.                           $        189              $     -
EPIC Y-Grade                                          174                    -
EPIC Crude Holdings                                   358                    -
Delaware Crossing                                      72                    -
Other                                                   6                    -
Total Additions to Equity Method Investments $        799              $    

-



Increase in Finance Lease Obligations        $          7              $    14


(1)  Amounts relate to US onshore undeveloped leasehold activity.

(2) Amounts include capitalized interest that will be amortized into earnings

over the useful life of the related assets.




Development costs decreased in 2019 as compared with 2018 due to our focus on US
onshore capital efficiencies and near-term completion of the Leviathan
development activities. Costs include approximately $1.6 billion for US onshore
and $482 million for Eastern Mediterranean, primarily related to Leviathan.
Midstream costs incurred in 2018 primarily relate to constructing the Mustang
IDP gathering system and Delaware Basin CGFs and were higher than 2019 costs
which included expansion of existing infrastructure. In addition, midstream
expenditures for 2018 included $206 million related to the Saddle Butte
acquisition.
Off-Balance Sheet Arrangements
We may enter into off-balance sheet arrangements and transactions that can give
rise to material off-balance sheet obligations. As of December 31, 2019,
material off-balance sheet arrangements and transactions that we have entered
into included transportation and gathering agreements, undrawn letters of credit
and guarantees, all of which are customary in the oil and gas industry (see
cross references to the Notes to the Financial Statements in the table below).
Other than these aforementioned arrangements, we have no transactions,
arrangements or other relationships with unconsolidated entities or other
persons that are reasonably likely to materially affect our financial condition,
results of operations, liquidity or availability of or requirements for capital
resources. See Contractual Obligations, below.

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Contractual Obligations
The following table summarizes certain contractual obligations as of December
31, 2019 that are reflected in the consolidated balance sheets and/or disclosed
in the accompanying notes. Unless otherwise noted, all amounts are undiscounted
and are net to our interest.
                                  Note
                                Reference              2021 and      2023 and       2025 and
(millions)                         (1)      2020         2022          2024          beyond        Total
                                   Note
Long-Term Debt (2)                 8      $     -     $     900     $   1,345     $    5,134     $  7,379
Long-Term Debt Interest
Payments and Revolving Credit      Note
Facility Commitment Fee (3)        8          342           661           

580 4,458 6,041


                                   Note
Operating Lease Obligations (4)    9          100           101            41             37          279
                                   Note
Finance Lease Obligations (4)      9           52            65            44             86          247
Marcellus Shale Firm                Note
Transportation Obligations (5)    11          143           187           175            675        1,180
Purchase and Service                Note
Obligations (6)                   12          135            42            32             72          281
Gathering, Transportation and       Note
Processing Obligations            12          174           332           302            334        1,142
Other Liabilities (7)
Asset Retirement Obligations       Note
(8)                                7           85           170            34            525          814
Commodity Derivative               Note
Instruments (9)                   14           36             1             -              -           37
Total Contractual Obligations             $ 1,067     $   2,459     $   

2,553 $ 11,321 $ 17,400

(1) References are to the Notes accompanying Item 8. Financial Statements and

Supplementary Data .

(2) Long-term debt excludes unamortized discounts, premiums, debt issuance costs

and finance lease obligations.

(3) Interest payments and commitment fees are based on the total debt balance,

scheduled maturities and interest rates in effect at December 31, 2019.

(4) Annual lease payments exclude regular maintenance and operational costs.




(5)  Amount includes firm transportation exit cost accruals resulting from
     certain permanent capacity assignments.


(6)  Purchase and service obligations represent contractual agreements to

purchase goods or services that are enforceable, legally binding and specify

all significant terms, including fixed and minimum quantities to be

purchased; fixed, minimum or variable price provisions; and the approximate


     timing of the transaction.


(7)  The table excludes deferred compensation liabilities of $133 million as
     specific payment dates are unknown. See   Item 8. Financial Statements and

Supplementary Data - Note 16. Stock-Based and Other Compensation Plans.




(8)  AROs are discounted.


(9)  Amount represents commodity derivative instruments that were in a net
     payable position with the counterparty at December 31, 2019.



Additional contractual commitments are as follows:
Exploration Commitments The terms of some of our PSCs, licenses or concession
agreements may require us to conduct certain exploration activities, including
drilling one or more exploratory wells or acquiring seismic data, within
specific time periods. These obligations can extend over several years, and
failure to conduct such exploration activities within the prescribed periods
could lead to loss of leases or exploration rights and/or penalty payments.
Continuous Development Obligations Certain of our Delaware Basin properties are
held through continuous development obligations. Therefore, we are contractually
obligated to fund a level of development activity in these areas which could be
substantial, or exercise options with land owners to extend leases. Failure to
meet these obligations may result in the loss of leases.
Mezzanine Equity Commitment Preferred equity is perpetual and has a 6.5% annual
dividend rate. The preferred equity partner can request redemption at a
pre-determined base return following the later of the sixth anniversary of the
preferred equity closing in March 2019 or the fifth anniversary of the
completion date of the EPIC Crude Oil Pipeline.
OIL Contingency  As of December 31, 2019, approximately $22 million was accrued
as a theoretical withdrawal premium associated with our membership in OIL. OIL
is a mutual insurance company which insures specific property, pollution
liability and other catastrophic risks. As part of our membership, we are
contractually committed to pay termination fees should we elect to withdraw from
OIL. We do not anticipate withdrawing from OIL and the potential termination fee
is calculated annually based on OIL's past losses.
Letters of Credit In the ordinary course of business, we maintain letters of
credit and bank guarantees with a variety of banks in support of certain
performance obligations of our subsidiaries. Outstanding letters of credit and
bank guarantees, including Noble Midstream Partners, totaled approximately $132
million at December 31, 2019.

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Ratings Triggers We do not have triggers on any of our corporate debt that would cause an event of default in the case of a downgrade of our credit rating. See


  Item 1A. Risk Factors   - Indebtedness may limit our liquidity and financial
flexibility.
CRITICAL ACCOUNTING POLICIES AND ESTIMATES
The preparation of the consolidated financial statements requires our management
to make a number of estimates and assumptions relating to the reported amounts
of assets and liabilities and the disclosures of contingent assets and
liabilities at the date of the consolidated financial statements and the
reported amounts of revenues and expenses during the period. When alternatives
exist among various accounting methods, the choice of accounting method can have
a significant impact on reported amounts. The following is a discussion of the
accounting policies, estimates and judgments which management believes are most
significant in the application of US GAAP used in the preparation of the
consolidated financial statements.
Reserves
Description   We estimate proved oil and gas reserves according to the
definition of proved reserves provided by the SEC and the Financial Accounting
Standards Board (FASB). Reserves estimates have a significant impact on our
financial statements as they are used as an input in the calculation of DD&A
expense and in impairment assessments for crude oil and natural gas properties.
Judgment and Uncertainties The accuracy of any reserves estimate is a function
of the quality of available data and of engineering and geological
interpretation and judgment. Commodity prices and development and production
costs are factors used in determining reserves economics and reserves estimates.
As a result, our reserves estimates will change in the future due to commodity
price volatility and cost changes, as well as due to new information obtained
from development drilling and production history.
Effect if Actual Results Differ from Assumptions Our reserves estimates are
based on year end cost, development, and production data and on historical
12-month average commodity price data. Results of drilling, testing, and
production subsequent to the date of the estimate may justify revision of such
estimate. Accordingly, reserves estimates are often different from the
quantities of crude oil, NGLs and natural gas that are ultimately recovered due
to reservoir performance and new geological and geophysical data. Additionally,
increases in future drilling, development, production and abandonment costs and
changes in commodity prices may result in future revisions to our reserves.
Estimates of proved crude oil, NGL and natural gas reserves significantly affect
our DD&A expense. For example, if estimates of proved reserves decline, the DD&A
rate will increase, resulting in a decrease in net income. For 2019, a 10%
reduction in estimates of proved reserves across all properties would have
increased DD&A expense by approximately $229 million.
A decline in estimates of proved reserves could also cause us to perform an
impairment analysis to determine if the carrying amount of crude oil and natural
gas properties exceeds fair value and could result in an impairment charge,
which would reduce earnings. See   Item 8. Financial Statements and
Supplementary Data - Supplemental Oil and Gas Information (Unaudited)  .
Oil and Gas Properties - Successful Efforts Method of Accounting
Description We account for crude oil and natural gas properties under the
successful efforts method of accounting which results in the capitalization of
costs directly related to specific oil and gas reserves when results are
positive and expensing of certain costs, including geological and geophysical
costs and delay rentals, during the periods the costs are incurred, and, in the
case of dry hole costs, in the period the well is deemed non-commercial.
The alternative method of accounting for crude oil and natural gas properties is
the full cost method under which geological and geophysical costs, exploratory
dry holes and delay rentals are capitalized as assets and charged to earnings in
future periods as a component of DD&A expense. In addition, capitalized costs
are accumulated in pools on a country-by-country basis. DD&A is computed on a
country-by-country basis, and capitalized costs are limited on the same basis
through the application of a ceiling test.
Judgment and Uncertainties The determination of the carrying value of our oil
and gas properties includes assessment of impairment and the calculation of DD&A
expense. We assess our oil and gas properties for possible impairment whenever
events or circumstances indicate that the carrying value of the asset may not be
recoverable. Our assessment involves a high degree of estimation uncertainty as
it requires us to make assumptions and apply judgment to estimate future net
undiscounted cash flows related to proved reserves. Such assumptions include
commodity prices, capital spending, production and abandonment costs and
reservoir data. In cases where unproved reserve cash flows are utilized to
assess properties for impairment, we apply the same pricing, cost and future
production assumptions. We also apply significant judgment in assessing
entity-specific assumptions and assumptions relating, but not limited to,
potential impacts of the political and regulatory climate on future development
activity, current exploration plans, favorable or unfavorable exploration
activity on the property being evaluated and/or adjacent properties, our
geologists' evaluation of the property, and the remaining lease term of the
property. Negative revisions in estimates of reserves quantities, expectations
of decreasing commodity prices, or rising

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operating or development costs could result in a reduction in undiscounted
future cash flows, potentially indicating an impairment.
An impairment is indicated if, as a result of the assessment, an asset's
carrying value exceeds its future net undiscounted cash flows. Once an
impairment is indicated, we estimate the asset's fair value as the carrying
value of the asset may not be recoverable. In the absence of comparable market
data, fair value is estimated using a discounted net cash flow model. Cash flows
are discounted using a risk-adjusted rate and compared to the carrying value in
determining the amount of impairment expense to record. Estimated future cash
flows are based on management's expectations for the future and include
estimates of crude oil, natural gas and NGL reserves and future commodity
prices, revenues and operating and development costs.
For the purpose of impairment assessment as of December 31, 2019, the
undiscounted future net cash flows included five-year strip prices for crude oil
and natural gas, with prices subsequent to the fifth year held constant as the
benchmark price, unless contractual arrangements designated the price to be
used. Capital and operating costs were estimated assuming 0% escalation. As a
result of the assessment, an impairment of our Eagle Ford Shale assets was
indicated. We then estimated the fair value of the assets and reduced the
carrying value of the assets to fair value, resulting in impairment expense of
$1.2 billion. See   Item 8. Financial Statements and Supplementary Data -
Note   10. Impairments.
For capitalized exploratory well costs, significant judgment is required in
order to determine whether sufficient progress has been made in assessing the
reserves and the economic and operational viability of a project in order to
continue capitalization of such costs. Such assessment requires consideration of
the following factors: commitment of project personnel, costs incurred to assess
reserves and potential development, progress of economic, legal, political and
environmental aspects of potential development, existence or active negotiations
of agreements with governments and venture partners or sales contracts with
customers, identification of existing transportation and other infrastructure
that is or will be available for the project and other factors. Consideration of
these factors requires us to make assumptions and apply judgment to assess
industry and economic conditions, as well as our future drilling and development
plans. Future changes in our exploratory and drilling activities or economic
conditions may result in the determination not to pursue certain projects,
resulting in future write-offs of the capitalized exploratory well costs.
Calculation of unit-of-production rates for DD&A purposes is performed on a
field-by-field basis and includes estimation of the period-end reserves base and
production data for each respective field, including estimates of production for
non-operated properties.
Effect if Actual Results Differ from Assumptions At year end, the net book value
of our unproved properties includes significant amounts allocated in previous
business combinations or acquisitions. Unfavorable revisions to our reserves
and/or changes in our exploration and development plans or the economic,
political or regulatory environment in areas where we operate, or changes in the
availability of funds for future activities may result in abandonment and
impairment of unproved leases and oil and gas properties. Unfavorable changes in
pricing and cost assumptions in the future may result in negative revisions to
proved and/or unproved reserves and associated cash flows, causing us to record
impairment of proved and/or unproved oil and gas properties. An impairment of a
proved or unproved property could result in a significant decrease in earnings.
If management determines that future appraisal drilling or development
activities are unlikely to occur, associated suspended exploratory well costs
would be charged to exploration expense in future periods, resulting in a
decrease in earnings. See   Item 8. Financial Statements and Supplementary Data
- Note   6. Capitalized Exploratory Well Costs and Undeveloped Leasehold Costs.
Furthermore, a change in groupings of our oil and gas properties for the purpose
of the DD&A calculation and impairment review could affect the calculation of
unit-of-production rates, DD&A expense and determination of impairment.
Exit Costs
Description Our consolidated balance sheets include accrued exit cost
liabilities relating to retained Marcellus Shale natural gas firm transportation
contracts.
Judgment and Uncertainties We are required to make significant judgments and
estimates regarding the timing and amount of recognition of exit cost
liabilities, taking into consideration current commercialization activities
related to the retained firm transportation contracts and/or the potential
occurrence of a cease-use date. We must consider, among other factors, the
status of negotiations with counterparties regarding permanent assignment or
capacity release of our contract commitments and the likelihood of capacity
utilization through purchase of third-party natural gas, which reduces
unutilized volume commitments.
Additionally, any subsequent changes in interest rates and/or credit risk will
affect the discount rate used to calculate the present value of expected future
cash flows associated with our existing contract commitments. There are inherent
uncertainties surrounding the recording of exit cost liabilities, and, in future
periods, a number of factors could significantly change our estimate of such
obligations or result in recognition of additional liability.

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Effect if Actual Results Differ from Assumptions Although we based the initial
fair value estimate of our accrued exit cost liabilities on assumptions we
believed to be reasonable, those assumptions were inherently unpredictable and
uncertain. Changes in assumptions, such as a reduced likelihood of capacity
utilization through purchase of third-party natural gas, could have resulted in
a higher exit cost accrual, higher current period expense, and lower future
expense. For example, as of December 31, 2019, we have a significant remaining
financial commitment associated with Marcellus Shale retained contracts. We
cannot guarantee that our current commercialization efforts for these contracts
will be successful, and, in the future, we may recognize substantial future
liabilities, at fair value, for the net amount of the estimated remaining
commitments under these contracts, with the offsetting charge reducing our
earnings. See   Item 8. Financial Statements and Supplementary Data - Note  

11.


Exit Cost - Transportation Commitments.
Income Tax Expense and Deferred Tax Assets
Description Our consolidated balance sheets include deferred tax assets and
liabilities relating to temporary differences, operating losses, and tax-credit
carryforwards. Valuation allowances may reduce the deferred tax assets if it is
more likely than not that some portion or all of the deferred tax assets will
not be realized.
Judgment and Uncertainties Estimates of amounts of income tax to be recorded
involve interpretation of complex tax laws as well as assessment of the effects
of foreign taxes on domestic taxes, and estimates regarding the timing and
amounts of future repatriation of earnings from controlled foreign corporations.
In determining whether a valuation allowance is required for our deferred tax
asset balances, we consider all available evidence (both positive and negative)
including, among other factors, current financial position, results of
operations, projected future taxable income, tax planning strategies and new tax
legislation. Significant judgment is involved in this determination as we are
required to make assumptions about future commodity prices, projected production
rates, timing of development activities, profitability of future business
strategies and forecasted economics in the oil and gas industry. Judgment is
also required in considering the relative weight of negative and positive
evidence. Additionally, changes in the effective tax rate resulting from changes
in tax law and our level of earnings may limit utilization of deferred tax
assets and will affect valuation of deferred tax balances in the future.
Effect if Actual Results Differ from Assumptions We continue to monitor facts
and circumstances in the reassessment of the likelihood that operating loss
carryforwards, credits and other deferred tax assets will be utilized prior to
their expiration. Changes to our current financial position, results of
operations, projected future taxable income, tax planning strategies and/or new
tax legislation may be deemed significant enough to necessitate a change to our
deferred tax asset valuation allowances in the future, in which case the
increases or decreases could significantly impact net income through offsetting
changes in income tax expense. See   Item 8. Financial Statements and
Supplementary Data - Note   13. Income Taxes.
Item 7A. Quantitative and Qualitative Disclosures About Market Risk
Commodity Price Risk
We are exposed to market risk in the normal course of business operations, and
the volatility of commodity prices continues to impact the oil and gas industry.
Derivative Instruments Held for Non-Trading Purposes  Due to commodity price
volatility, we may use derivative instruments as a means of managing our
exposure to price changes. At December 31, 2019, we had various open commodity
derivative instruments. Changes in the fair value of commodity derivative
instruments are reported in earnings in the period in which they occur. Our open
commodity derivative instruments were in a net liability position with a fair
value of $22 million. Based on the December 31, 2019 published commodity futures
price curves for the underlying commodities, a hypothetical price increase of
10% per Bbl for both crude oil and NGLs and 10% per MMBtu for natural gas would
increase the fair value of our net commodity derivative liability by
approximately $121 million.
Even with certain hedging arrangements in place to mitigate the effect of
commodity price volatility, our 2020 revenues and results of operations could be
adversely affected if commodity prices were to decline. See   Item 1A. Risk
Factors   - Commodity hedging transactions may limit our potential gains or fail
to fully protect us from declines in commodity prices and   Item 8. Financial
Statements and Supplementary Data - Note   14. Derivative Instruments and
Hedging Activities.
Interest Rate Risk
Changes in interest rates affect the amount of interest we pay on certain of our
borrowings. Borrowings under our commercial paper program, the Revolving Credit
Facility, Noble Midstream Services Revolving Credit Facility and Noble Midstream
Services Term Loan Credit Facilities, which as of December 31, 2019 total $1.5
billion and have a weighted average interest rate of 2.92%, are subject to
variable interest rates which expose us to the risk of earnings or cash flow
loss due to potential increases in market interest rates. A change in the
interest rate applicable to amounts, if any, related to these debt agreements
would have has a de minimis impact on our consolidated net loss. See   Item 8.
Financial Statements and Supplementary Data - Note   8. Long-Term Debt.

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While we currently have no interest rate derivative instruments as of December
31, 2019, we may invest in such instruments in the future in order to mitigate
interest rate risk.
LIBOR Transition London Inter-bank Offered Rate (LIBOR) is a commonly used
indicative measure of the average interest rate at which major global banks
could borrow from one another. Certain of our commercial agreements use LIBOR as
a "benchmark" or "reference rate" for various commercial terms. It is currently
expected that the LIBOR benchmark will be discontinued after 2021. We are
currently reviewing our contracts that extend past 2021 to determine their
exposure to LIBOR, some of which contain an existing LIBOR alternative. Where
there is not an alternative, we expect to replace the LIBOR benchmark with an
alternative reference rate such as the Secured Overnight Financing Rate. We do
not expect the transition to an alternative rate to have a significant impact on
our business, operations or liquidity.
Foreign Currency Risk
The US dollar is considered the functional currency for each of our
international operations. Substantially all of our international crude oil, NGL
and natural gas production is sold pursuant to US dollar denominated contracts.
Transactions, such as operating costs and administrative expenses that are paid
in a foreign currency, are remeasured into US dollars and recorded in the
financial statements at prevailing currency exchange rates. Certain monetary
assets and liabilities, for example certain local working capital items, are
denominated in a foreign currency and remeasured into US dollars. A reduction in
the value of the US dollar against currencies of other countries in which we
have material operations could result in the use of additional cash to settle
operating, administrative and tax liabilities. Net transaction gains and losses
were de minimis for 2019, 2018 and 2017.
We currently have no foreign currency derivative instruments outstanding.
However, we may enter into foreign currency derivative instruments in the future
if we determine that it is necessary to invest in such instruments in order to
mitigate our foreign currency exchange risk.

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