Introduction



The following discussion is intended to provide investors with an understanding
of our financial condition and results of our operations and should be read in
conjunction with our historical Consolidated Financial Statements and
accompanying notes.

Our discussion and analysis includes the following:



•Executive Summary
•Acquisitions and Capital Projects
•Critical Accounting Policies and Estimates
•Recent Accounting Pronouncements
•Results of Operations
•Outlook
•Liquidity and Capital Resources

Executive Summary

Company Overview



We own and operate midstream energy infrastructure and provide logistics
services primarily for crude oil, NGL and natural gas. We own an extensive
network of pipeline transportation, terminalling, storage, and gathering assets
in key crude oil and NGL producing basins and transportation corridors and at
major market hubs in the United States and Canada. We were formed in 1998, and
our operations are conducted directly and indirectly through our operating
subsidiaries and are managed through three operating segments: Transportation,
Facilities and Supply and Logistics. See "-Results of Operations-Analysis of
Operating Segments" for further discussion.

Overview of Operating Results, Capital Investments and Other Significant Activities



Net income for the year ended December 31, 2019 of $2.180 billion was relatively
flat compared to net income of $2.216 billion recognized for the year ended
December 31, 2018. The significant items impacting income for the comparative
period included:

•Favorable results from our Supply and Logistics segment due to the realization
of favorable crude oil differentials, primarily in the Permian Basin and Canada,
and higher NGL margins;

•Favorable results from our Transportation segment, primarily from our pipelines
in the Permian Basin region, driven by higher volumes from increased production
and our recently completed capital expansion projects;

•A decrease in income tax expense primarily due to lower year-over-year income
as impacted by fluctuations in the derivative mark-to-market valuations in our
Canadian operations;

•A non-cash gain of $269 million recognized during the 2019 period related to a
fair value adjustment resulting from the accounting for the contribution of our
undivided joint interest in the Capline pipeline system for an equity interest
in Capline Pipeline Company LLC compared to a gain of $200 million recognized in
2018 related to the sale of a portion of our interest in BridgeTex Pipeline
Company LLC;

•The unfavorable impact of the mark-to-market of certain derivative instruments, resulting from gains recognized during the 2018 period compared to losses recognized in the 2019 period;

•The unfavorable impact of a net loss on asset sales and asset impairments of $28 million in 2019 compared to a net gain of $114 million in 2018; and


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•Higher depreciation and amortization expense in 2019 primarily due to the additional depreciation expense associated with the completion of various capital expansion projects.

See further discussion of our operating results in the "-Results of Operations-Analysis of Operating Segments" and "-Other Income and Expenses" sections below. See the "Outlook-Market Overview and Outlook" section below for a discussion of the market and our current outlook.



We invested approximately $1.3 billion in expansion capital during 2019,
primarily related to projects under development in the Permian Basin. See the
"-Acquisitions, Capital Projects and Divestitures" section below for additional
information.

We also paid approximately $1.2 billion of cash distributions to our common unitholders and our Series A and B preferred unitholders during 2019.

Leverage Reduction Plan Completion and Financial Policy Update



In August 2017, we announced that we were implementing an action plan to
strengthen our balance sheet, reduce leverage, enhance our distribution
coverage, minimize new issuances of common equity and position the Partnership
for future distribution growth. The action plan ("Leverage Reduction Plan"),
which was endorsed by the PAGP GP Board, included our intent to achieve certain
objectives. During 2017 and 2018, we made meaningful progress in executing our
Leverage Reduction Plan and in April 2019, we announced our achievement of the
remaining objectives. Concurrent with the completion of the Leverage Reduction
Plan, we completed a review of our approach to our capital allocation process,
targeted leverage metrics and distribution management policies. As part of the
April 2019 announcement, we provided several updates regarding our financial
policy, including the following actions:

•Lowering our targeted long-term debt to Adjusted EBITDA leverage ratio by 0.5x to a range of 3.0x to 3.5x;

•Establishing a long-term sustainable minimum annual distribution coverage level of 130% underpinned by predominantly fee-based cash flows; and



•Our adoption of an annual cycle for setting the common unit distribution level
and intention to increase common unit distributions in the future contingent on
achieving and maintaining targeted leverage and coverage ratios and subject to
an annual review process.

These actions reflect our dedication to optimizing sustainable unitholder value
while also preserving and enhancing our financial flexibility, further reducing
leverage and improving our credit profile, with an objective of achieving
mid-BBB equivalent credit ratings over time. Consistent with those objectives,
we announced that we intend to continue to focus on activities to enhance
investment returns and reinforce capital discipline through asset optimization,
joint ventures, potential divestitures and similar arrangements.

Acquisitions, Capital Projects and Divestitures

Acquisitions and Capital Projects

We completed a number of acquisitions and capital projects in 2019, 2018 and 2017 that have impacted our results of operations. The following table summarizes our expenditures for acquisition capital, expansion capital and maintenance capital for such periods (in millions):



                                        Year Ended December 31,
                                    2019          2018          2017
Acquisition capital (1) (2)      $    50       $     -       $ 1,323
Expansion capital (1) (3)          1,340         1,888         1,135
Maintenance capital (3)              287           252           247
                                 $ 1,677       $ 2,140       $ 2,705





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(1)Acquisitions of initial investments or additional interests in unconsolidated
entities are included in "Acquisition capital." Subsequent contributions to
unconsolidated entities related to expansion projects of such entities are
recognized in "Expansion capital." We account for our investments in such
entities under the equity method of accounting.
(2)Acquisition capital for 2017 primarily includes the Alpha Crude Connector
Gathering System acquisition completed in February 2017. See Note 7 to our
Consolidated Financial Statements for additional information on acquisitions.
(3)Capital expenditures made to expand the existing operating and/or earnings
capacity of our assets are classified as "Expansion capital." Capital
expenditures for the replacement and/or refurbishment of partially or fully
depreciated assets in order to maintain the operating and/or earnings capacity
of our existing assets are classified as "Maintenance capital."

Expansion Capital Projects



Our 2019 projects primarily included the construction and expansion of pipeline
systems and storage and terminal facilities. The following table summarizes our
2019, 2018 and 2017 projects (in millions):

Projects                                                 2019          2018 

2017


Complementary Permian Basin Projects (1)              $   503       $   671       $   217
Permian Basin Takeaway Pipeline Projects (1) (2)          440           880            59
Other Long-Haul Pipeline Projects (1)                      92             3            15
Selected Facilities Projects (1) (3)                       93            62           134
Diamond Pipeline                                            6            17           318
Other Projects                                            206           255           392
Total                                                 $ 1,340       $ 1,888       $ 1,135





(1)These projects will continue into 2020. See "-Liquidity and Capital
Resources-Acquisitions, Investments, Expansion Capital Expenditures and
Divestitures -2020 Capital Projects."
(2)Represents pipeline projects with takeaway capacity out of the Permian Basin,
including (i) our 65% interest in the Cactus II Pipeline, (ii) our 16% interest
in Wink to Webster Pipeline and (iii) our Sunrise expansion.
(3)Includes projects at our St. James, Fort Saskatchewan and Cushing terminals.

Our expansion capital programs consist of investments in midstream
infrastructure projects that build upon our core assets and operations. For the
years presented, substantially all of the expansion capital was invested in our
fee-based Transportation and Facilities segments. The majority of this expansion
capital consists of highly-contracted projects that complement our broader
system capabilities and support the long-term needs of the upstream and
downstream sectors of the industry value chain.

We currently expect to spend approximately $1.4 billion for expansion capital in
2020. See "-Liquidity and Capital Resources-Acquisitions, Investments, Expansion
Capital Expenditures and Divestitures -2020 Capital Projects" and
"Outlook-Market Overview and Outlook" for additional information.

Divestitures



We continually evaluate potential sales of non-core assets and/or sales of
partial interests in assets to strategic joint venture partners. The following
table summarizes the proceeds received for sales of such assets, which were
previously reported in our Transportation and Facilities segments, during the
years ended December 31, 2019, 2018 and 2017 (in millions):

                                           Year Ended December 31,
                                      2019          2018          2017

Proceeds from divestitures (1) $ 205 $ 1,334 $ 1,083







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(1)Includes proceeds from our formation of Red River Pipeline Company LLC in May 2019. See Note 12 to our Consolidated Financial Statements for additional information.

Proceeds from asset sales were used to fund our expansion capital program and reduce debt levels. See "-Liquidity and Capital Resources" for additional discussion of our divestiture activities.

Critical Accounting Policies and Estimates



The preparation of financial statements in conformity with GAAP and rules and
regulations of the SEC requires us to make estimates and assumptions that affect
the reported amounts of assets and liabilities, as well as the disclosure of
contingent assets and liabilities, at the date of the financial statements. Such
estimates and assumptions also affect the reported amounts of revenues and
expenses during the reporting period. Although we believe these estimates are
reasonable, actual results could differ from these estimates. On a regular
basis, we evaluate our assumptions, judgments and estimates.  We also discuss
our critical accounting policies and estimates with the Audit Committee of the
Board of Directors.

We believe that the assumptions, judgments and estimates involved in the
accounting for our (i) estimated fair value of assets and liabilities acquired
and identification of associated goodwill and intangible assets, (ii) impairment
assessments of goodwill and intangible assets, (iii) fair value of derivatives,
(iv) accruals and contingent liabilities, (v) equity-indexed compensation plan
accruals, (vi) property and equipment, depreciation and amortization expense,
asset retirement obligations and impairments, (vii) allowance for doubtful
accounts and (viii) inventory valuations have the greatest potential impact on
our Consolidated Financial Statements. These areas are key components of our
results of operations and are based on complex rules which require us to make
judgments and estimates. Therefore, we consider these to be our critical
accounting policies and estimates, which are discussed further as follows. For
further information on all of our significant accounting policies, see Note 2 to
our Consolidated Financial Statements.

Fair Value of Assets and Liabilities Acquired and Identification of Associated
Goodwill and Intangible Assets. In accordance with FASB guidance regarding
business combinations, with each acquisition, we allocate the cost of the
acquired entity to the assets and liabilities assumed based on their estimated
fair values at the date of acquisition. If the initial accounting for the
business combination is incomplete when the combination occurs, an estimate will
be recorded. We also expense the transaction costs as incurred in connection
with each acquisition, except for acquisitions of equity method investments. In
addition, we are required to recognize intangible assets separately from
goodwill.

Determining the fair value of assets and liabilities acquired, as well as
intangible assets that relate to such items as customer relationships, acreage
dedications and other contracts, involves professional judgment and is
ultimately based on acquisition models and management's assessment of the value
of the assets acquired and, to the extent available, third party assessments.

Impairment Assessments of Goodwill and Intangible Assets. Goodwill and
intangible assets with indefinite lives are not amortized but are instead
periodically assessed for impairment. See Note 8 to our Consolidated Financial
Statements for further discussion of goodwill. Intangible assets with finite
lives are amortized over their estimated useful life as determined by
management.

Impairment testing entails estimating future net cash flows relating to the
business, based on management's estimate of future revenues, future cash flows
and market conditions including pricing, demand, competition, operating costs
and other factors. Uncertainties associated with these estimates include changes
in production decline rates, production interruptions, fluctuations in refinery
capacity or product slates, economic obsolescence factors in the area and
potential future sources of cash flow. In addition, changes in our weighted
average cost of capital from our estimates could have a significant impact on
fair value. We cannot provide assurance that actual amounts will not vary
significantly from estimated amounts. Resolutions of these uncertainties have
resulted, and in the future may result, in impairments that impact our results
of operations and financial condition.

Fair Value of Derivatives. The fair value of a derivative at a particular period
end does not reflect the end results of a particular transaction, and will most
likely not reflect the gain or loss at the conclusion of a transaction. We
reflect estimates for these items based on our internal records and information
from third parties. We have commodity derivatives, interest rate derivatives
and foreign currency derivatives that are accounted for as assets and
liabilities at fair value on our Consolidated Balance Sheets. The valuations of
our derivatives that are exchange traded are based on market prices on the
applicable exchange on the last day of the period. For our derivatives that are
not exchange traded, the estimates we use are based on indicative broker
quotations or an internal valuation model. Our valuation models utilize market
observable inputs such as
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price, volatility, correlation and other factors and may not be reflective of
the price at which they can be settled due to the lack of a liquid market. Less
than 1% of total annual revenues are based on estimates derived from internal
valuation models.

We also have embedded derivatives that are recorded at fair value on our
Consolidated Balance Sheets. These embedded derivatives are valued using models
that contain inputs, some of which involve management judgment.
Although the resolution of the uncertainties involved in these estimates has not
historically had a material impact on our results of operations or financial
condition, we cannot provide assurance that actual amounts will not vary
significantly from estimated amounts. See Item 7A.  Quantitative and Qualitative
Disclosures About Market Risk and Note 13 to our Consolidated Financial
Statements for a discussion regarding our derivatives and risk management
activities.

Accruals and Contingent Liabilities.  We record accruals or liabilities for,
among other things, environmental remediation, natural resource damage
assessments, governmental fines and penalties, potential legal claims and fees
for legal services associated with loss contingencies, and bonuses. Accruals are
made when our assessment indicates that it is probable that a liability has
occurred and the amount of liability can be reasonably estimated. Our estimates
are based on all known facts at the time and our assessment of the ultimate
outcome. Among the many uncertainties that impact our estimates are the
necessary regulatory approvals for, and potential modification of, our
environmental remediation plans, the limited amount of data available upon
initial assessment of the impact of soil or water contamination, changes in
costs associated with environmental remediation services and equipment, the
duration of the natural resource damage assessment and the ultimate amount of
damages determined, the determination and calculation of fines and penalties,
the possibility of existing legal claims giving rise to additional claims and
the nature, extent and cost of legal services that will be required in
connection with lawsuits, claims and other matters. Our estimates for contingent
liability accruals are increased or decreased as additional information is
obtained or resolution is achieved. A hypothetical variance of 5% in our
aggregate estimate for the accruals and contingent liabilities discussed above
would have an impact on earnings of up to approximately $14 million. Although
the resolution of these uncertainties has not historically had a material impact
on our results of operations or financial condition, we cannot provide assurance
that actual amounts will not vary significantly from estimated amounts.

Equity-Indexed Compensation Plan Accruals.  We accrue compensation expense
(referred to herein as equity-indexed compensation expense) for outstanding
equity-indexed compensation awards. Under GAAP, we are required to estimate the
fair value of our outstanding equity-indexed compensation awards and recognize
that fair value as compensation expense over the service period. For
equity-indexed compensation awards that contain a performance condition, the
fair value of the award is recognized as equity-indexed compensation expense
only if the attainment of the performance condition is considered probable.
Uncertainties involved in this estimate include future levels of four quarter
trailing distributable cash flow ("DCF") per common unit (or in some instances,
per common unit and common equivalent unit) and whether or not a performance
condition will be attained. In addition, the common unit price at the end of
each period (and at the time of vesting) will impact the amount of compensation
expense recorded in each period for certain awards. We cannot provide assurance
that the actual fair value of our equity-indexed compensation awards will not
vary significantly from estimated amounts.

We recognized equity-indexed compensation expense of $34 million, $79 million
and $41 million in 2019, 2018 and 2017, respectively, related to awards granted
under our various equity-indexed compensation plans. A hypothetical variance of
5% in our aggregate estimate for the equity-indexed compensation expense would
have an impact on our total costs and expenses of less than 1%. See Note 18 to
our Consolidated Financial Statements for a discussion regarding our
equity-indexed compensation plans.

Property and Equipment, Depreciation and Amortization Expense, Asset Retirement
Obligations and Impairments. We compute depreciation and amortization using the
straight-line method based on estimated useful lives. These estimates are based
on various factors including condition, manufacturing specifications,
technological advances and historical data concerning useful lives of similar
assets. Uncertainties that impact these estimates include changes in laws and
regulations relating to restoration and abandonment requirements, economic
conditions and supply and demand in the area. When assets are put into service,
we make estimates with respect to useful lives and salvage values that we
believe are reasonable. However, subsequent events could cause us to change our
estimates, thus impacting the future calculation of depreciation and
amortization.

We record retirement obligations associated with tangible long-lived assets
based on estimates related to the costs associated with cleaning, purging and,
in some cases, completely removing the assets and returning the land to its
original state. In addition, our estimates include a determination of the
settlement date or dates for the potential obligation, which may or may not be
determinable. Uncertainties that impact these estimates include the costs
associated with these activities and the timing of incurring such costs.

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We periodically evaluate property and equipment for impairment when events or
circumstances indicate that the carrying value of these assets may not be
recoverable. Any evaluation is highly dependent on the underlying assumptions of
related cash flows. We consider the fair value estimate used to calculate
impairment of property and equipment a critical accounting estimate. In
determining the existence of an impairment of carrying value, we make a number
of subjective assumptions as to:

•whether there is an event or circumstance that may be indicative of an
impairment;
•the grouping of assets;
•the intention of "holding", "abandoning" or "selling" an asset;
•the forecast of undiscounted expected future cash flow over the asset's
estimated useful life; and
•if an impairment exists, the fair value of the asset or asset group.

In addition, when we evaluate property and equipment and other long-lived assets for recoverability, it may also be necessary to review related depreciation estimates and methods.



A change in our outlook or use could result in impairments that may be material
to our results of operations or financial condition. See the "-Outlook- Market
Overview and Outlook" section below and Note 6 to our Consolidated Financial
Statements for additional information.

Allowance for Doubtful Accounts.  We perform credit evaluations of our customers
and grant credit based on past payment history, financial conditions and
anticipated industry conditions. Customer payments are regularly monitored and a
provision for doubtful accounts is established based on specific situations and
overall industry conditions. Our history of bad debt losses has been minimal
(less than $2 million in the aggregate over the years ended December 31, 2019,
2018 and 2017) and generally limited to specific customer circumstances;
however, credit risks can change suddenly and without notice. See Note 2 to our
Consolidated Financial Statements for additional discussion.

Inventory Valuations.  Inventory, including long-term inventory, primarily
consists of crude oil and NGL and is valued at the lower of cost or net
realizable value, with cost determined using an average cost method within
specific inventory pools. At the end of each reporting period, we assess the
carrying value of our inventory and use estimates and judgment when making any
adjustments necessary to reduce the carrying value to net realizable value.
Among the uncertainties that impact our estimates are the applicable quality and
location differentials to include in our net realizable value analysis.
Additionally, we estimate the upcoming liquidation timing of the inventory.
Changes in assumptions made as to the timing of a sale can materially impact net
realizable value. During the years ended December 31, 2019, 2018 and 2017, we
recorded charges of $11 million, $8 million and $35 million, respectively,
related to the valuation adjustment of our crude oil inventory due to declines
in prices. See Note 5 to our Consolidated Financial Statements for further
discussion regarding inventory.

Recent Accounting Pronouncements



See Note 2 to our Consolidated Financial Statements for information regarding
the effect of recent accounting pronouncements on our Consolidated Financial
Statements.

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Results of Operations

The following table sets forth an overview of our consolidated financial results calculated in accordance with GAAP (in millions, except per unit data):


                                                                                                                             Variance
                                                    Year Ended December 31,                                                                   2019-2018                       2018-2017
                                             2019             2018             2017                    $                %                $                %
Transportation Segment Adjusted
EBITDA (1)                                $ 1,722          $ 1,508          $ 1,287                $   214               14  %       $   221               17  %
Facilities Segment Adjusted EBITDA
(1)                                           705              711              734                     (6)              (1) %           (23)              (3) %
Supply and Logistics Segment
Adjusted EBITDA (1)                           803              462               60                    341               74  %           402           

**

Adjustments:


Depreciation and amortization of
unconsolidated entities                       (62)             (56)             (45)                    (6)             (11) %           (11)             (24) %
Selected items impacting
comparability - Segment Adjusted
EBITDA                                       (163)             433               33                   (596)              **              400           

**


Depreciation and amortization                (601)            (520)            (517)                   (81)             (16) %            (3)              (1) %
Gains/(losses) on asset sales and
asset impairments, net                        (28)             114             (109)                  (142)            (125) %           223              205  %
Gain on investment in
unconsolidated entities                       271              200                -                     71               36  %           200              N/A
Interest expense, net                        (425)            (431)            (510)                     6                1  %            79               15  %
Other income/(expense), net                    24               (7)             (31)                    31              443  %            24               77  %
Income tax expense                            (66)            (198)             (44)                   132               67  %          (154)            (350) %
Net income                                  2,180            2,216              858                    (36)              (2) %         1,358              158  %
Net income attributable to
noncontrolling interests                       (9)               -               (2)                    (9)             N/A                2              100  %
Net income attributable to PAA            $ 2,171          $ 2,216          $   856                $   (45)              (2) %       $ 1,360

159 %

Basic net income per common unit $ 2.70 $ 2.77 $ 0.96

$ (0.07)              **          $  1.81

**

Diluted net income per common unit $ 2.65 $ 2.71 $ 0.95

$ (0.06)              **          $  1.76

**


Basic weighted average common units
outstanding                                   727              726              717                      1               **                9           

**


Diluted weighted average common
units outstanding                             800              799              718                      1               **               81               **





**  Indicates that variance as a percentage is not meaningful.
(1)Segment Adjusted EBITDA is the measure of segment performance that is
utilized by our Chief Operating Decision Maker ("CODM") to assess performance
and allocate resources among our operating segments. This measure is adjusted
for certain items, including those that our CODM believes impact comparability
of results across periods. See Note 21 to our Consolidated Financial Statements
for additional discussion of such adjustments.

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Non-GAAP Financial Measures



To supplement our financial information presented in accordance with GAAP,
management uses additional measures known as "non-GAAP financial measures" in
its evaluation of past performance and prospects for the future. The primary
additional measures used by management are earnings before interest, taxes,
depreciation and amortization (including our proportionate share of depreciation
and amortization of, and gains and losses on significant asset sales by,
unconsolidated entities), gains and losses on asset sales and asset impairments
and gains on investments in unconsolidated entities, adjusted for certain
selected items impacting comparability ("Adjusted EBITDA") and Implied DCF.

Management believes that the presentation of such additional financial measures
provides useful information to investors regarding our performance and results
of operations because these measures, when used to supplement related GAAP
financial measures, (i) provide additional information about our core operating
performance and ability to fund distributions to our unitholders through cash
generated by our operations, (ii) provide investors with the same financial
analytical framework upon which management bases financial, operational,
compensation and planning/budgeting decisions and (iii) present measures that
investors, rating agencies and debt holders have indicated are useful in
assessing us and our results of operations. These non-GAAP measures may exclude,
for example, (i) charges for obligations that are expected to be settled with
the issuance of equity instruments, (ii) gains and losses on derivative
instruments that are related to underlying activities in another period (or the
reversal of such adjustments from a prior period), gains and losses on
derivatives that are related to investing activities (such as the purchase of
linefill) and inventory valuation adjustments, as applicable, (iii) long-term
inventory costing adjustments, (iv) items that are not indicative of our core
operating results and business outlook and/or (v) other items that we believe
should be excluded in understanding our core operating performance. These
measures may further be adjusted to include amounts related to deficiencies
associated with minimum volume commitments whereby we have billed the
counterparties for their deficiency obligation and such amounts are recognized
as deferred revenue in "Other current liabilities" in our Consolidated Financial
Statements. Such amounts are presented net of applicable amounts subsequently
recognized into revenue. We have defined all such items as "selected items
impacting comparability." We do not necessarily consider all of our selected
items impacting comparability to be non-recurring, infrequent or unusual, but we
believe that an understanding of these selected items impacting comparability is
material to the evaluation of our operating results and prospects.

Although we present selected items impacting comparability that management
considers in evaluating our performance, you should also be aware that the items
presented do not represent all items that affect comparability between the
periods presented. Variations in our operating results are also caused by
changes in volumes, prices, exchange rates, mechanical interruptions,
acquisitions, expansion projects and numerous other factors as discussed, as
applicable, in "Analysis of Operating Segments."

Our definition and calculation of certain non-GAAP financial measures may not be
comparable to similarly-titled measures of other companies. Adjusted EBITDA and
Implied DCF are reconciled to Net Income, the most directly comparable measure
as reported in accordance with GAAP, and should be viewed in addition to, and
not in lieu of, our Consolidated Financial Statements and accompanying notes.

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The following table sets forth the reconciliation of these non-GAAP financial performance measures from Net Income (in millions):


                                                                                                                            Variance
                                                     Year Ended December 31,                                                              2019-2018                       2018-2017
                                              2019             2018             2017                   $              %               $                %
Net income                                 $ 2,180          $ 2,216          $   858                $ (36)            (2) %       $ 1,358             158  %
Add/(Subtract):
Interest expense, net                          425              431              510                   (6)            (1) %           (79)            (15) %
Income tax expense                              66              198               44                 (132)           (67) %           154             350  %
Depreciation and amortization                  601              520              517                   81             16  %             3               1  %
(Gains)/losses on asset sales and
asset impairments, net                          28             (114)             109                  142            125  %          (223)           (205) %
Gain on investment in unconsolidated
entities                                      (271)            (200)               -                  (71)           (36) %          (200)              

N/A


Depreciation and amortization of
unconsolidated entities (1)                     62               56               45                    6             11  %            11              24  %
Selected Items Impacting
Comparability:
(Gains)/losses from derivative
activities net of inventory
valuation adjustments (2)                      160             (519)             (46)                 679             **             (473)            

**


Long-term inventory costing
adjustments (3)                                (20)              21              (24)                 (41)            **               45             

**


Deficiencies under minimum volume
commitments, net (4)                           (18)               7                2                  (25)            **                5             

**


Equity-indexed compensation expense
(5)                                             17               55               23                  (38)            **               32             

**


Net (gain)/loss on foreign currency
revaluation (6)                                 14                3              (26)                  11             **               29              **
Line 901 incident (7)                           10                -               32                   10             **              (32)             **
Significant acquisition-related
expenses (8)                                     -                -                6                    -             **               (6)            

**


Selected Items Impacting
Comparability - Segment Adjusted
EBITDA                                         163             (433)             (33)                 596             **             (400)            

**


(Gains)/losses from derivative
activities (2)                                  (2)              14              (13)                 (16)            **               27             

**


Net (gain)/loss on foreign currency
revaluation (6)                                (15)              (4)               5                  (11)            **               (9)            

**


Net loss on early repayment of
senior
  notes (9)                                      -                -               40                    -             **              (40)             **
Selected Items Impacting
Comparability - Adjusted EBITDA (10)           146             (423)              (1)                 569             **             (422)             **
Adjusted EBITDA (10)                       $ 3,237          $ 2,684          $ 2,082                $ 553             21  %       $   602              29  %
Interest expense, net of certain
non-cash items (11)                           (407)            (419)            (483)                  12              3  %            64              13  %
Maintenance capital (12)                      (287)            (252)            (247)                 (35)           (14) %            (5)             (2) %
Current income tax expense                    (112)             (66)             (28)                 (46)           (70) %           (38)           (136) %
Adjusted equity earnings in
unconsolidated entities, net of
distributions (13)                             (49)               1              (10)                 (50)            **               11             

**


Distributions to noncontrolling
interests (14)                                  (6)               -               (2)                  (6)           N/A                2             100  %
Implied DCF                                $ 2,376          $ 1,948          $ 1,312                $ 428             22  %       $   636              48  %
Preferred unit distributions (15)             (198)            (161)        

(5)


Implied DCF Available to Common
Unitholders                                $ 2,178          $ 1,787          $ 1,307
Common unit distributions (14)              (1,004)            (871)        

(1,386)

Implied DCF Excess/(Shortage) (16) $ 1,174 $ 916

 $   (79)





**  Indicates that variance as a percentage is not meaningful.
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(1)Over the past several years, we have increased our participation in strategic
pipeline joint ventures accounted for under the equity method of accounting. We
exclude our proportionate share of the depreciation and amortization expense of,
and gains and losses on significant asset sales by, such unconsolidated entities
when reviewing Adjusted EBITDA, similar to our consolidated assets.
(2)We use derivative instruments for risk management purposes, and our related
processes include specific identification of hedging instruments to an
underlying hedged transaction. Although we identify an underlying transaction
for each derivative instrument we enter into, there may not be an accounting
hedge relationship between the instrument and the underlying transaction. In the
course of evaluating our results of operations, we identify the earnings that
were recognized during the period related to derivative instruments for which
the identified underlying transaction does not occur in the current period and
exclude the related gains and losses in determining Adjusted EBITDA. In
addition, we exclude gains and losses on derivatives that are related to
investing activities, such as the purchase of linefill. We also exclude the
impact of corresponding inventory valuation adjustments, as applicable. See
Note 13 to our Consolidated Financial Statements for a comprehensive discussion
regarding our derivatives and risk management activities.
(3)We carry crude oil and NGL inventory that is comprised of minimum working
inventory requirements in third-party assets and other working inventory that is
needed for our commercial operations. We consider this inventory necessary to
conduct our operations and we intend to carry this inventory for the foreseeable
future. Therefore, we classify this inventory as long-term on our balance sheet
and do not hedge the inventory with derivative instruments (similar to linefill
in our own assets). We treat the impact of changes in the average cost of the
long-term inventory (that result from fluctuations in market prices) and
writedowns of such inventory that result from price declines as a selected item
impacting comparability. See Note 5 to our Consolidated Financial Statements for
additional inventory disclosures.
(4)We have certain agreements that require counterparties to deliver, transport
or throughput a minimum volume over an agreed upon period. Substantially all of
such agreements were entered into with counterparties to economically support
the return on our capital expenditure necessary to construct the related asset.
Some of these agreements include make-up rights if the minimum volume is not
met. We record a receivable from the counterparty in the period that services
are provided or when the transaction occurs, including amounts for deficiency
obligations from counterparties associated with minimum volume commitments. If a
counterparty has a make-up right associated with a deficiency, we defer the
revenue attributable to the counterparty's make-up right and subsequently
recognize the revenue at the earlier of when the deficiency volume is delivered
or shipped, when the make-up right expires or when it is determined that the
counterparty's ability to utilize the make-up right is remote. We include the
impact of amounts billed to counterparties for their deficiency obligation, net
of applicable amounts subsequently recognized into revenue, as a selected item
impacting comparability. We believe the inclusion of the contractually committed
revenues associated with that period is meaningful to investors as the related
asset has been constructed, is standing ready to provide the committed service
and the fixed operating costs are included in the current period results.
(5)Our total equity-indexed compensation expense includes expense associated
with awards that will or may be settled in units and awards that will or may be
settled in cash. The awards that will or may be settled in units are included in
our diluted net income per unit calculation when the applicable performance
criteria have been met. We consider the compensation expense associated with
these awards as a selected item impacting comparability as the dilutive impact
of the outstanding awards is included in our diluted net income per unit
calculation, as applicable, and the majority of the awards are expected to be
settled in units. The portion of compensation expense associated with awards
that are certain to be settled in cash is not considered a selected item
impacting comparability. See Note 18 to our Consolidated Financial Statements
for a comprehensive discussion regarding our equity-indexed compensation plans.
(6)During the periods presented, there were fluctuations in the value of the
Canadian dollar ("CAD") to the U.S. dollar ("USD"), resulting in non-cash gains
and losses that were not related to our core operating results for the period
and were thus classified as a selected item impacting comparability. See Note 13
to our Consolidated Financial Statements for discussion regarding our currency
exchange rate risk hedging activities.
(7)Includes costs recognized during the period related to the Line 901 incident
that occurred in May 2015, net of amounts we believe are probable of recovery
from insurance. See Note 19 to our Consolidated Financial Statements for
additional information regarding the Line 901 incident.
(8)Includes acquisition-related expenses associated with the ACC Acquisition in
February 2017. See Note 7 to our Consolidated Financial Statements for
additional information.
(9)The 2017 period includes net losses incurred in connection with the early
redemption of our (i) $600 million, 6.50% senior notes due May 2018 and (ii)
$350 million, 8.75% senior notes due May 2019. See Note 11 to our Consolidated
Financial Statements for additional information.
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(10)Other income/(expense), net per our Consolidated Statements of Operations,
adjusted for selected items impacting comparability ("Adjusted Other
income/(expense), net") is included in Adjusted EBITDA and excluded from Segment
Adjusted EBITDA.
(11)Excludes certain non-cash items impacting interest expense such as
amortization of debt issuance costs and terminated interest rate swaps.
(12)Maintenance capital expenditures are defined as capital expenditures for the
replacement and/or refurbishment of partially or fully depreciated assets in
order to maintain the operating and/or earnings capacity of our existing assets.
(13)Comprised of cash distributions received from unconsolidated entities less
equity earnings in unconsolidated entities (adjusted for our proportionate share
of depreciation and amortization and gains and losses on significant asset
sales).
(14)Cash distributions paid during the period presented.
(15)Cash distributions paid to our preferred unitholders during the period
presented. The current $0.5250 quarterly ($2.10 annualized) per unit
distribution requirement of our Series A preferred units was paid-in-kind for
each quarterly distribution from their issuance through February 2018.
Distributions on our Series A preferred units have been paid in cash since the
May 2018 quarterly distribution. The current $61.25 per unit annual distribution
requirement of our Series B preferred units, which were issued in October 2017,
is payable semi-annually in arrears on May 15 and November 15. A pro-rated
initial distribution on the Series B preferred units was paid on November 15,
2017. See Note 12 to our Consolidated Financial Statements for additional
information regarding our preferred units.
(16)Excess DCF is retained to establish reserves for future distributions,
capital expenditures and other partnership purposes. DCF shortages may be funded
from previously established reserves, cash on hand or from borrowings under our
credit facilities or commercial paper program.

Analysis of Operating Segments

We manage our operations through three operating segments: Transportation, Facilities and Supply and Logistics. Our CODM (our Chief Executive Officer) evaluates segment performance based on a variety of measures including Segment Adjusted EBITDA, segment volumes, Segment Adjusted EBITDA per barrel and maintenance capital investment.



We define Segment Adjusted EBITDA as revenues and equity earnings in
unconsolidated entities less (a) purchases and related costs, (b) field
operating costs and (c) segment general and administrative expenses, plus our
proportionate share of the depreciation and amortization expense of, and gains
and losses on significant asset sales by, unconsolidated entities, and further
adjusted for certain selected items including (i) the mark-to-market of
derivative instruments that are related to underlying activities in another
period (or the reversal of such adjustments from a prior period), gains and
losses on derivatives that are related to investing activities (such as the
purchase of linefill) and inventory valuation adjustments, as applicable, (ii)
long-term inventory costing adjustments, (iii) charges for obligations that are
expected to be settled with the issuance of equity instruments, (iv) amounts
related to deficiencies associated with minimum volume commitments, net of
applicable amounts subsequently recognized into revenue and (v) other items that
our CODM believes are integral to understanding our core segment operating
performance. See Note 21 to our Consolidated Financial Statements for a
reconciliation of Segment Adjusted EBITDA to Net income attributable to PAA.

Our segment analysis involves an element of judgment relating to the allocations
between segments. In connection with its operations, the Supply and Logistics
segment secures transportation and facilities services from our other two
segments as well as third-party service providers under month-to-month and
multi-year arrangements. Intersegment transportation service rates are conducted
at posted tariff rates, rates similar to those charged to third parties or rates
that we believe approximate market. Facilities segment services are also
obtained at rates generally consistent with rates charged to third parties for
similar services. Intersegment activities are eliminated in consolidation and we
believe that the estimates with respect to these rates are reasonable. Also, our
segment operating and general and administrative expenses reflect direct costs
attributable to each segment; however, we also allocate certain operating
expenses and general and administrative overhead expenses between segments based
on management's assessment of the business activities for the period. The
proportional allocations by segment require judgment by management and may be
adjusted in the future based on the business activities that exist during each
period. We believe that the estimates with respect to these allocations are
reasonable.

Revenues and expenses from our Canadian based subsidiaries, which use CAD as
their functional currency, are translated at the prevailing average exchange
rates for the month.

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Transportation Segment



Our Transportation segment operations generally consist of fee-based activities
associated with transporting crude oil and NGL on pipelines, gathering systems,
trucks and barges. The Transportation segment generates revenue through a
combination of tariffs, pipeline capacity agreements and other transportation
fees. Tariffs and other fees on our pipeline systems vary by receipt point and
delivery point. The segment results generated by our tariff and other
fee-related activities depend on the volumes transported on the pipeline and the
level of the tariff and other fees charged, as well as the fixed and variable
field costs of operating the pipeline.

The following tables set forth our operating results from our Transportation
segment:
                                                                                                                                                           Variance
Operating Results (1)                                                       Year Ended December 31,                                                                         2019-2018                         2018-2017
(in millions, except per barrel data)                                       2019               2018               2017                      $                 %                 $                %
Revenues                                                        $ 2,320            $ 1,990            $ 1,718                  $   330                17  %       $    272                16  %
Purchases and related costs                                        (244)              (194)              (123)                     (50)              (26) %            (71)              (58) %
Field operating costs                                              (700)              (640)              (593)                     (60)               (9) %            (47)               (8) %
Segment general and administrative expenses (2)                    (104)              (117)              (101)                      13                11  %            (16)              (16) %
Equity earnings in unconsolidated entities                          388                375                290                       13                 3  %             85                29  %

Adjustments (3):
Depreciation and amortization of unconsolidated entities             61                 56                 45                        5                 9  %             11                24  %
(Gains)/losses from derivative activities                             -                 (1)                 -                        1                **                (1)               **
Deficiencies under minimum volume commitments, net                  (18)                 9                  2                      (27)               **                 7                **
Equity-indexed compensation expense                                   9                 30                 11                      (21)               **                19                **
Line 901 incident                                                    10                  -                 32                       10                **               (32)               **
Significant acquisition-related expenses                              -                  -                  6                        -                **                (6)               **
Segment Adjusted EBITDA                                         $ 1,722            $ 1,508            $ 1,287                  $   214                14  %       $    221                17  %
Maintenance capital                                             $   161            $   139            $   120                  $    22                16  %       $     19                16  %
Segment Adjusted EBITDA per barrel                              $  0.68            $  0.70            $  0.68                  $ (0.02)               (3) %       $   0.02                 3  %




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                                                                                                                                             Variance
Average Daily Volumes                                         Year Ended December 31,                                                                        2019-2018                          2018-2017
(in thousands of barrels per day) (4)                                 2019             2018             2017                 Volumes            %               Volumes            %
Tariff activities volumes
Crude oil pipelines (by region):
Permian Basin (5)                                           4,690            3,732            2,855                 958                  26  %         877                  31  %
South Texas / Eagle Ford (5)                                  446              442              360                   4                   1  %          82                  23  %
Central (5)                                                   498              473              420                  25                   5  %          53                  13  %
Gulf Coast                                                    165              178              349                 (13)                 (7) %        (171)                (49) %
Rocky Mountain (5)                                            293              284              393                   9                   3  %        (109)                (28) %
Western                                                       198              183              184                  15                   8  %          (1)                 (1) %
Canada                                                        323              316              352                   7                   2  %         (36)                (10) %
Crude oil pipelines                                         6,613            5,608            4,913               1,005                  18  %         695                  14  %
NGL pipelines                                                 192              183              170                   9                   5  %          13                   8  %
Tariff activities total volumes                             6,805            5,791            5,083               1,014                  18  %         708                  14  %
Trucking volumes                                               88               98              103                 (10)                (10) %          (5)                 (5) %
Transportation segment total volumes                        6,893            5,889            5,186               1,004                  17  %         703                  14  %





** Indicates that variance as a percentage is not meaningful.
(1)Revenues and costs and expenses include intersegment amounts.
(2)Segment general and administrative expenses reflect direct costs attributable
to each segment and an allocation of other expenses to the segments. The
proportional allocations by segment require judgment by management and are based
on the business activities that exist during each period.
(3)Represents adjustments included in the performance measure utilized by our
CODM in the evaluation of segment results. See Note 21 to our Consolidated
Financial Statements for additional discussion of such adjustments.
(4)Average daily volumes are calculated as the total volumes (attributable to
our interest) for the year divided by the number of days in the year.
(5)Region includes volumes (attributable to our interest) from pipelines owned
by unconsolidated entities.

The following is a discussion of items impacting Transportation segment
operating results for the year ended December 31, 2019 compared to the year
ended December 31, 2018. For a discussion of the 2018-2017 comparative period,
see Item 7. "Management's Discussion and Analysis of Financial Condition and
Results of Operations-Results of Operations-Transportation Segment" included in
our 2018 Annual Report on Form 10-K.


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Revenues, Purchases and Related Costs, Equity Earnings in Unconsolidated Entities and Volumes. The following table presents variances in revenues, purchases and related costs and equity earnings in unconsolidated entities by region:

Favorable/(Unfavorable) Variance


                                                                                    2019-2018
                                                                               Purchases and Related
(in millions)                                           Revenues                       Costs                 Equity Earnings
Permian Basin region                                $        242               $           (50)             $         (10)
South Texas / Eagle Ford region                               (3)                            -                         26
Central region                                                30                            (2)                         5
Gulf Coast region                                              1                             -                        (19)
Rocky Mountain region                                         (9)                            -                          9
Western                                                       11                             -                          -
Canada region                                                 25                             -                          -
Other regions, trucking and pipeline loss
allowance revenue                                             33                             2                          2
Total variance                                      $        330               $           (50)             $          13


Below is a discussion of the significant drivers impacting net revenues and equity earnings in unconsolidated entities for the comparative period presented:



•Permian Basin region. Total revenues, net of purchases and related costs,
increased by approximately $192 million for the year ended December 31, 2019
compared to the year ended December 31, 2018 primarily due to higher volumes
from increased production and our recently completed capital expansion projects.
These increases included (i) higher volumes on our gathering systems of
approximately 321,000 barrels per day, (ii) higher volumes of approximately
391,000 barrels per day on our intra-basin pipelines and (iii) a volume increase
of approximately 246,000 barrels per day on our long-haul pipelines, including
our Sunrise II pipeline, which was placed into service in the fourth quarter of
2018, and the Cactus II pipeline, which was placed into service in the third
quarter of 2019, as discussed below.

Equity earnings decreased in 2019 compared to 2018 primarily due to the sale of
a 30% interest in BridgeTex Pipeline Company, LLC at the end of the third
quarter of 2018, partially offset by equity earnings from our 65% interest in
Cactus II pipeline, which was placed into service in the third quarter of 2019.

•South Texas / Eagle Ford region. Equity earnings from our 50% interest in Eagle
Ford Pipeline LLC for 2019 compared to 2018 was favorably impacted by higher
volumes and the recognition of revenue associated with deficiencies under
minimum volume commitments.

•Central region. The increase in revenues for the year ended December 31, 2019
compared to the year ended December 31, 2018 was primarily due to higher volumes
on certain of our pipelines in the Central region, including our Red River
pipeline, and the recognition of previously deferred revenue in 2019 associated
with deficiencies under minimum volume commitments.

•Gulf Coast region. The decrease in volumes for the year ended December 31, 2019
compared to the year ended December 31, 2018 was associated with (i) the Capline
pipeline being taken out of service in the fourth quarter of 2018 and (ii) a
decrease in throughput on a lower tariff rate pipeline, which did not result in
a significant impact on revenue.

In the first quarter of 2019, the owners of the Capline pipeline system
contributed their undivided joint interests in the system for equity interests
in a legal entity. As a result, revenues and expenses from the Capline pipeline
system that were previously consolidated are reflected as equity earnings. The
unfavorable equity earnings variance for the year ended December 31, 2019
compared to the year ended December 31, 2018 was due to our share of operating
costs from our 54.13% interest in Capline Pipeline Company LLC reflected in
equity earnings in the 2019 period, whereas such costs were reflected in field
operating costs in the 2018 period.

In the third quarter of 2019, the owners of Capline Pipeline Company LLC sanctioned the reversal of the Capline pipeline system and a connection to Diamond Pipeline.


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•Rocky Mountain region. The decrease in revenues for the year ended December 31,
2019 compared to the year ended December 31, 2018 was primarily due to the sale
of one of our pipelines in the second quarter of 2018.

The favorable equity earnings variances for the year ended December 31, 2019
compared to the year ended December 31, 2018 were primarily driven by favorable
results from our 40% interest in Saddlehorn Pipeline Company, LLC due to higher
volumes from committed shippers, partially offset by a decrease from our 35.7%
interest in White Cliffs Pipeline, LLC due to lower volumes as one crude oil
line was taken out of service in May 2019 for conversion to NGL service.

•Western region. The increase in revenues and volumes for the year ended December 31, 2019 compared to the year ended December 31, 2018 was primarily due to higher volumes moved from our Bakersfield rail terminal into our area pipelines.



•Canada region. The increase in revenues for the year ended December 31, 2019
compared to the year ended December 31, 2018 was primarily due to higher tariffs
on certain of our Canadian crude oil pipelines and related system assets,
partially offset by unfavorable foreign exchange impacts.

•Other regions, trucking and pipeline loss allowance. The increase in other
revenues for the year ended December 31, 2019 compared to the year ended
December 31, 2018 was primarily due to greater pipeline loss allowance revenue
in 2019 driven by higher volumes and, to a lesser extent, higher prices.

Adjustments: Deficiencies under minimum volume commitments, net. Many industry
infrastructure projects developed and completed over the last several years were
underpinned by long-term minimum volume commitment contracts whereby the shipper
agreed to either: (i) ship and pay for certain stated volumes or (ii) pay the
agreed upon price for a minimum contract quantity. Some of these agreements
include make-up rights if the minimum volume is not met. If a counterparty has a
make-up right associated with a deficiency, we bill the counterparty and defer
the revenue attributable to the counterparty's make-up right but record an
adjustment to reflect such amount associated with the current period activity in
Segment Adjusted EBITDA. We subsequently recognize the revenue, and record a
corresponding reversal of the adjustment, at the earlier of when the deficiency
volume is delivered or shipped, when the make-up right expires or when it is
determined that the counterparty's ability to utilize the make-up right is
remote.

For the year ended December 31, 2019, the recognition of previously deferred
revenue exceeded amounts billed to counterparties associated with deficiencies
under minimum volume commitments. For the year ended December 31, 2018, amounts
billed to counterparties exceeded revenue recognized during the period that was
previously deferred.

Field Operating Costs. The increase in field operating costs for the year ended
December 31, 2019 compared to the year ended December 31, 2018 was primarily due
to the continued expansion of our Transportation segment operations including
costs associated with personnel, power-related costs and property taxes. The
expansion activities included projects placed in service in the fourth quarter
of 2018, including our Sunrise II pipeline expansion within the Permian Basin
region. Field operating costs were also impacted by an increase of estimated
costs associated with the Line 901 incident (which impact our field operating
costs but are excluded from Segment Adjusted EBITDA and thus are reflected as an
"Adjustment" in the table above). See Note 19 to our Consolidated Financial
Statements for additional information regarding the Line 901 incident. The
increase in field operating costs was partially offset by the favorable impact
of reflecting operating costs associated with the Capline pipeline system in
equity earnings for the 2019 period that were included in field operating costs
for the 2018 period, as discussed above.

Segment General and Administrative Expenses. The decrease in segment general and
administrative expenses for the year ended December 31, 2019 compared to the
year ended December 31, 2018 was primarily due to a decrease in equity-indexed
compensation expense due to fewer awards outstanding in 2019. A portion of
equity-indexed compensation expense was associated with awards that will or may
be settled in common units (which impact our general and administrative expenses
but are excluded from Segment Adjusted EBITDA and thus are reflected as an
"Adjustment" in the table above).

Maintenance Capital. Maintenance capital consists of capital expenditures for
the replacement and/or refurbishment of partially or fully depreciated assets in
order to maintain the operating and/or earnings capacity of our existing assets.
The increase in maintenance capital for the year ended December 31, 2019
compared to the year ended December 31, 2018 was primarily due to pump
replacement projects and enhancements to our gathering systems in the Permian
Basin region, partially offset by lower costs due to the completion of several
large integrity management projects.

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Facilities Segment



Our Facilities segment operations generally consist of fee-based activities
associated with providing storage, terminalling and throughput services
primarily for crude oil, NGL and natural gas, as well as NGL fractionation and
isomerization services and natural gas and condensate processing services. The
Facilities segment generates revenue through a combination of month-to-month and
multi-year agreements and processing arrangements.

The following tables set forth our operating results from our Facilities
segment:
                                                                                                                                                           Variance
Operating Results (1)                                                       Year Ended December 31,                                                                         2019-2018                         2018-2017
(in millions, except per barrel data)                                       2019               2018               2017                      $                 %                 $                %
Revenues                                                        $ 1,171            $ 1,161            $ 1,173                  $    10                 1  %       $    (12)               (1) %
Purchases and related costs                                         (15)               (17)               (24)                       2                12  %              7                29  %
Field operating costs                                              (360)              (360)              (350)                       -                 -  %            (10)               (3) %
Segment general and administrative expenses (2)                     (83)               (82)               (73)                      (1)               (1) %             (9)              (12) %

Adjustments (3):
Depreciation and amortization of unconsolidated entities              1                  -                  -                        1                **                 -                **
(Gains)/losses from derivative activities                           (13)                 -                  4                      (13)               **                (4)               **
Deficiencies under minimum volume commitments, net                    -                 (2)                 -                        2                **                (2)               **
Equity-indexed compensation expense                                   4                 11                  4                       (7)               **                 7                **

Segment Adjusted EBITDA                                         $   705            $   711            $   734                  $    (6)               (1) %       $    (23)               (3) %
Maintenance capital                                             $    97            $   100            $   114                  $    (3)               (3) %       $    (14)              (12) %
Segment Adjusted EBITDA per barrel                              $  0.47            $  0.48            $  0.47                  $ (0.01)               (2) %       $   0.01                 2  %



                                                                                                                                              Variance
                                                         Year Ended December 31,                                                                               2019-2018                         2018-2017
Volumes (4)                                     2019                      2018              2017                    Volumes              %              Volumes               %
Liquids storage (average
monthly capacity in millions
of barrels) (5)                                           110               109               112                         1               1  %                (3)             (3) %
Natural gas storage (average
monthly working capacity in
billions of cubic feet)                                    63                66                82                        (3)             (5) %               (16)            (20) %
NGL fractionation (average
volumes in thousands of
barrels per day)                                          144               131               126                        13              10  %                 5               4  %
Facilities segment total
volumes (average monthly
volumes in millions of
barrels) (6)                                              125               124               130                         1               1  %                (6)             (5) %





** Indicates that variance as a percentage is not meaningful.
(1)Revenues and costs and expenses include intersegment amounts.
(2)Segment general and administrative expenses reflect direct costs attributable
to each segment and an allocation of other expenses to the segments. The
proportional allocations by segment require judgment by management and are based
on the business activities that exist during each period.
(3)Represents adjustments included in the performance measure utilized by our
CODM in the evaluation of segment results. See Note 21 to our Consolidated
Financial Statements for additional discussion of such adjustments.
(4)Average monthly volumes are calculated as total volumes for the year divided
by the number of months in the year.
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(5)Includes volumes (attributable to our interest) from facilities owned by
unconsolidated entities.
(6)Facilities segment total volumes is calculated as the sum of: (i) liquids
storage capacity; (ii) natural gas storage working capacity divided by 6 to
account for the 6:1 mcf of natural gas to crude Btu equivalent ratio and further
divided by 1,000 to convert to monthly volumes in millions; and (iii) NGL
fractionation volumes multiplied by the number of days in the year and divided
by the number of months in the year.

The following is a discussion of items impacting Facilities segment operating
results for the year ended December 31, 2019 compared to the year ended December
31, 2018. For a discussion of the 2018-2017 comparative period, see Item 7.
"Management's Discussion and Analysis of Financial Condition and Results of
Operations-Results of Operations-Facilities Segment" included in our 2018 Annual
Report on Form 10-K.

Revenues, Purchases and Related Costs and Volumes. Variances in revenues, purchases and related costs, and average monthly volumes were primarily driven by:



•Crude Oil Storage. Revenues increased by $11 million for the year ended
December 31, 2019 compared to the year ended December 31, 2018 due to increased
activity at certain of our terminals and the addition of 1 million barrels of
storage capacity at our Midland terminal placed into service during 2019.

•Natural Gas Storage. Revenues, net of purchases and related costs, increased by
$9 million for the year ended December 31, 2019 compared to the year ended
December 31, 2018, primarily due to expiring contracts replaced by contracts
with higher rates and increased hub activity.

•NGL Operations. Revenues decreased by $7 million for the year ended
December 31, 2019 compared to the year ended December 31, 2018 primarily due to
a net unfavorable foreign exchange impact of $10 million and the sale of a
natural gas processing facility in the second quarter of 2018, partially offset
by higher fees at certain of our facilities.

•Rail Terminals. Revenues were relatively flat for the year ended December 31,
2019 compared to the year ended December 31, 2018. Revenues were favorably
impacted by increased activity at certain of our terminals, as well as
agreements that were entered into related to usage of our railcars. These
favorable impacts were substantially offset by the recognition of previously
deferred revenue associated with deficiencies under minimum volume commitments
in the 2018 period.

Field Operating Costs. Field operating costs were relatively flat for the year
ended December 31, 2019 compared to the year ended December 31, 2018, as
increases in property taxes, maintenance and integrity management costs, as well
as higher costs at our rail terminals due to increased activity, were offset by
a decrease in power-related costs associated with mark-to-market gains (which
impact our field operating costs but are excluded from Segment Adjusted EBITDA
and thus are reflected as an "Adjustment" in the table above).

Maintenance Capital. For the year ended December 31, 2019 compared to the year
ended December 31, 2018, maintenance capital spending decreased primarily due to
the impact of lower turnaround costs at certain of our NGL facilities, partially
offset by increased spending at our gas storage facilities.

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Supply and Logistics Segment



Revenues from our Supply and Logistics segment activities reflect the sale of
gathered and bulk-purchased crude oil, as well as sales of NGL volumes.
Generally, our segment results are impacted by (i) increases or decreases in our
Supply and Logistics segment volumes (which consist of lease gathering crude oil
purchases volumes and NGL sales volumes), (ii) the overall strength, weakness
and volatility of market conditions, including regional differentials, and (iii)
the effects of competition on our lease gathering and NGL margins. In addition,
the execution of our risk management strategies in conjunction with our assets
can provide upside in certain markets.

The following tables set forth our operating results from our Supply and
Logistics segment:
                                                                                                                                                              Variance
Operating Results (1)                                                          Year Ended December 31,                                                                         2019-2018                         2018-2017
(in millions, except per barrel data)                                         2019                2018                2017                      $                 %                $                %
Revenues                                                         $ 32,276            $ 32,822            $ 25,065                  $  (546)               (2) %       $ 7,757                31  %
Purchases and related costs                                       (31,276)            (31,487)            (24,557)                     211                 1  %        (6,930)              (28) %
Field operating costs                                                (258)               (276)               (254)                      18                 7  %           (22)               (9) %
Segment general and administrative expenses (2)                      (110)               (117)               (102)                       7                 6  %           (15)              (15) %

Adjustments (3): (Gains)/losses from derivative activities net of inventory valuation adjustments

                                                 173                (518)                (50)                     691                **             (468)               **
Long-term inventory costing adjustments                               (20)                 21                 (24)                     (41)               **               45                **
Equity-indexed compensation expense                                     4                  14                   8                      (10)               **                6                **
Net (gain)/loss on foreign currency revaluation                        14                   3                 (26)                      11                **               29                **
Segment Adjusted EBITDA                                          $    803            $    462            $     60                  $   341                74  %       $   402                **
Maintenance capital                                              $     29            $     13            $     13                  $    16               123  %       $     -                 -  %
Segment Adjusted EBITDA per barrel                               $   1.61            $   0.97            $   0.13                  $  0.64                66  %       $  0.84                **



Average Daily Volumes (4)                                                                       Year Ended December 31,                                                                                                 2019-2018                              2018-2017
(in thousands of barrels per day)                                                                      2019                  2018                  2017                       Volume                 %                      Volume                %
Crude oil lease gathering purchases                                                          1,162                 1,054                   945                        108                    10  %                  109                    12  %
NGL sales                                                                                      207                   255                   274                        (48)                  (19) %                  (19)                   (7) %
Supply and Logistics segment total volumes                                                   1,369                 1,309                 1,219                         60                     5  %                   90                     7  %





** Indicates that variance as a percentage is not meaningful.
(1)Revenues and costs include intersegment amounts.
(2)Segment general and administrative expenses reflect direct costs attributable
to each segment and an allocation of other expenses to the segments. The
proportional allocations by segment require judgment by management and are based
on the business activities that exist during each period.
(3)Represents adjustments included in the performance measure utilized by our
CODM in the evaluation of segment results. See Note 21 to our Consolidated
Financial Statements for additional discussion of such adjustments.
(4)Average daily volumes are calculated as the total volumes for the period
divided by the number of days in the period.

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The following table presents the range of the NYMEX West Texas Intermediate ("WTI") benchmark price of crude oil (in dollars per barrel):



                                                   NYMEX WTI
                                                Crude Oil Price
During the Year Ended December 31,            Low              High
2019                                      $    46             $ 66
2018                                      $    43             $ 76
2017                                      $    43             $ 60



Our crude oil and NGL supply, logistics and distribution operations are not
directly affected by the absolute level of prices. Because the commodities that
we buy and sell are generally indexed to the same pricing indices for both sales
and purchases, revenues and costs related to purchases will fluctuate with
market prices. However, the margins related to those sales and purchases will
not necessarily have a corresponding increase or decrease. Additionally, net
revenues are impacted by net gains and losses from certain derivative activities
during the periods.

Our NGL operations are sensitive to weather-related demand, particularly during
the approximate five-month peak heating season of November through March, and
temperature differences from period-to-period may have a significant effect on
NGL demand and thus our financial performance.

During 2018 and 2019, crude oil production growth and limited pipeline take-away
capacity caused pipelines in many basins to operate at high levels of
utilization. Specifically, regional production increases created concerns
regarding pipeline take-away capacity, particularly in the Permian Basin and
Western Canada, which in turn caused crude oil location differentials in these
areas to widen relative to historical norms. This environment created
opportunities for our Supply and Logistics segment to generate additional
margin. Looking forward, we do not expect these opportunities for higher margins
to continue for the foreseeable future.

Segment Adjusted EBITDA and Volumes. The following summarizes the significant
items impacting our Supply and Logistics Segment Adjusted EBITDA for the year
ended December 31, 2019 compared to the year ended December 31, 2018. For a
discussion of the 2018-2017 comparative period, see Item 7. "Management's
Discussion and Analysis of Financial Condition and Results of Operations-Results
of Operations-Supply and Logistics Segment" included in our 2018 Annual Report
on Form 10-K.

•Crude Oil Operations. Revenues, net of purchases and related costs, ("net
revenues") from our crude oil supply and logistics operations increased for the
year ended December 31, 2019 compared to the year ended December 31, 2018
largely due to the realization of more favorable differentials, primarily in the
Permian Basin and Canada.

•NGL Operations. Net revenues from our NGL operations increased for the year
ended December 31, 2019 compared to the same period in 2018 primarily due to the
streamlining of our NGL activities by focusing on our equity supply from our
gathering and processing facilities, favorable regional differentials and the
favorable impact of certain non-recurring items recorded in the second quarter
of 2019.

•Impact from Certain Derivative Activities, Net of Inventory Valuation
Adjustments. The impact from certain derivative activities on our net revenues
includes mark-to-market and other gains and losses resulting from certain
derivative instruments that are related to underlying activities in another
period (or the reversal of mark-to-market gains and losses from a prior period),
losses on derivatives that are related to investing activities (such as the
purchase of linefill) and inventory valuation adjustments, as applicable. See
Note 13 to our Consolidated Financial Statements for a comprehensive discussion
regarding our derivatives and risk management activities. These gains and losses
impact our net revenues but are excluded from Segment Adjusted EBITDA and thus
are reflected as an "Adjustment" in the table above.

•Long-Term Inventory Costing Adjustments. Our net revenues are impacted by
changes in the weighted average cost of our crude oil and NGL inventory pools
that result from price movements during the periods. These costing adjustments
related to long-term inventory necessary to meet our minimum inventory
requirements in third-party assets and other working inventory that was needed
for our commercial operations. We consider this inventory necessary to conduct
our operations and we intend to carry this inventory for the foreseeable future.
These costing adjustments impact our net revenues but are excluded from Segment
Adjusted EBITDA and thus are reflected as an "Adjustment" in the table above.

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•Foreign Exchange Impacts. Our net revenues are impacted by fluctuations in the
value of CAD to USD, resulting in foreign exchange gains and losses on U.S.
denominated net assets within our Canadian operations. These non-cash gains and
losses impact our net revenues but are excluded from Segment Adjusted EBITDA and
thus are reflected as an "Adjustment" in the table above.

•Field Operating Costs. The decrease in field operating costs for the year ended
December 31, 2019 compared to the year ended December 31, 2018 was primarily
driven by a decrease in lease expense for our crude oil transportation trucks
and trailers related to the adoption of the new lease accounting standard and a
decrease in trucking costs due to lower company-hauled volumes, partially offset
by higher third-party hauled volumes in certain regions.

•Segment General and Administrative Expenses. The decrease in segment general
and administrative expenses for the year ended December 31, 2019 compared to the
year ended December 31, 2018 was primarily due to a decrease in equity-indexed
compensation expense due to fewer awards outstanding in 2019. A portion of
equity-indexed compensation expense was associated with awards that will or may
be settled in common units (which impact our general and administrative expenses
but are excluded from Segment Adjusted EBITDA and thus are reflected as an
"Adjustment" in the table above).

Maintenance Capital. For the year ended December 31, 2019 compared to the year
ended December 31, 2018, maintenance capital spending increased primarily due to
lease costs for our crude oil transportation trucks and trailers that are
capitalized following the adoption of the new lease accounting standard.

Other Income and Expenses



The following summarizes the significant items impacting Other Income and
Expenses for the year ended December 31, 2019 compared to the year ended
December 31, 2018. For a discussion of the 2018-2017 comparative period, see
Item 7. "Management's Discussion and Analysis of Financial Condition and Results
of Operations-Results of Operations-Other Income and Expenses" included in our
2018 Annual Report on Form 10-K.

Depreciation and Amortization



Depreciation and amortization expense increased for the year ended December 31,
2019 compared to the same period in 2018 largely driven by (i) additional
depreciation expense associated with the completion of various capital expansion
projects and (ii) an adjustment to the useful lives of certain assets.

Gains/Losses on Asset Sales and Asset Impairments, Net



The net loss on asset sales and asset impairments for the year ended December
31, 2019 was largely driven by a loss on the sale of a storage terminal in North
Dakota. The net gain for the year ended December 31, 2018 was largely driven by
a gain on the sale of certain pipelines in the Rocky Mountain region, partially
offset by a loss on the sale of a non-core asset under construction.

Gain on Investment in Unconsolidated Entities



During the year ended December 31, 2019, we recognized a non-cash gain of $269
million related to a fair value adjustment resulting from the accounting for the
contribution of our undivided joint interest in the Capline pipeline system for
an equity interest in Capline Pipeline Company LLC. During the year ended
December 31, 2018, we recognized a gain of $200 million related to our sale of a
30% interest in BridgeTex Pipeline Company, LLC. See Note 9 to our Consolidated
Financial Statements for additional information.

Interest Expense

Interest expense is primarily impacted by:



•our weighted average debt balances;
•the level and maturity of fixed rate debt and interest rates associated
therewith;
•market interest rates and our interest rate hedging activities; and
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•interest capitalized on capital projects.

The following table summarizes the components impacting the interest expense variance (in millions, except percentages):



                                                                                   Average                Weighted Average
                                                                                    LIBOR                 Interest Rate (1)

Interest expense for the year ended December 31, 2017 $ 510

             1.1  %                            4.4  %
Impact of retirement of senior notes                              (71)
Other                                                              (8)

Interest expense for the year ended December 31, 2018 $ 431

             1.9  %                            4.3  %
Impact of borrowings under credit facilities and
commercial paper program                                          (21)
Impact of issuance and retirement of senior notes                  10
Other                                                               5

Interest expense for the year ended December 31, 2019 $ 425

            2.2  %                            4.4  %




(1)Excludes commitment and other fees.



Interest expense decreased for the year ended December 31, 2019 compared to the
year ended December 31, 2018 primarily due to a lower weighted average debt
balance during the 2019 period from lower commercial paper and credit facility
borrowings, partially offset by the issuance of $1 billion, 3.55% senior notes
in September 2019.

See Note 11 to our Consolidated Financial Statements for additional information regarding our debt activities during the periods presented.

Other Income/(Expense), Net



The following table summarizes the components impacting Other income/(expense),
net (in millions):

                                                                                Year Ended December 31,
                                                                          2019                              2018

Gain/(loss) related to mark-to-market adjustment of our Preferred Distribution Rate Reset Option (1)

                       $           2                       $       (14)
Net gain/(loss) on foreign currency revaluation                               15                                 5
Other                                                                          7                                 2
                                                                   $          24                       $        (7)

(1)See Note 13 to our Consolidated Financial Statements for additional information.

Income Tax Expense



Income tax expense decreased for the year ended December 31, 2019 compared to
the year ended December 31, 2018 primarily due to (i) lower deferred income tax
expense associated with lower year-over-year income as impacted by fluctuations
in the derivative mark-to-market valuations in our Canadian operations and (ii)
the recognition of a deferred tax benefit of $60 million as a result of the
reduction of the provincial tax rate in Alberta, Canada enacted during the
second quarter of 2019. Such favorable impacts were partially offset by higher
current income tax expense resulting from higher taxable earnings from our
Canadian operations.

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Outlook

Market Overview and Outlook

See Items 1. and 2. "Business and Properties-Global Petroleum Market Overview" for a discussion of recent crude oil market conditions, and see Item 7. "Management's Discussion and Analysis of Financial Condition and Results of Operations-Results of Operations-Analysis of Operating Segments-Supply and Logistics Segment" for information on how these conditions may impact our business for the foreseeable future.

Outlook for Certain Idled and Underutilized Assets



During 2015, we shut down Line 901 and a portion of Line 903 in California
following the release of crude oil from Line 901 (see Note 19 to our
Consolidated Financial Statements for additional information). During the period
since these pipelines were idled, we have been assessing potential alternatives
in order to return them to operation. Some of the alternatives under
consideration could result in incurring costs associated with retiring certain
assets or an impairment of some or all of the carrying value of the idled
property and equipment, which was approximately $119 million as of December 31,
2019.

Liquidity and Capital Resources

General



Our primary sources of liquidity are (i) cash flow from operating activities as
further discussed below in the section entitled "-Cash Flow from Operating
Activities," (ii) borrowings under our credit facilities or commercial paper
program and (iii) funds received from sales of equity and debt securities. In
addition, we may supplement these sources of liquidity with proceeds from our
divestiture program, as further discussed below in the section entitled
"-Acquisitions, Investments, Expansion Capital Expenditures and Divestitures ."
Our primary cash requirements include, but are not limited to, (i) ordinary
course of business uses, such as the payment of amounts related to the purchase
of crude oil, NGL and other products, other expenses and interest payments on
outstanding debt, (ii) expansion and maintenance activities, (iii) acquisitions
of assets or businesses, (iv) repayment of principal on our long-term debt and
(v) distributions to our unitholders. We generally expect to fund our short-term
cash requirements through cash flow generated from operating activities and/or
borrowings under our commercial paper program or credit facilities. In addition,
we generally expect to fund our long-term needs, such as those resulting from
expansion activities or acquisitions and refinancing our long-term debt, through
a variety of sources (either separately or in combination), which may include
the sources mentioned above as funding for short-term needs and/or the issuance
of additional equity or debt securities and the sale of assets.

As of December 31, 2019, although we had a working capital deficit of $405
million, we had approximately $2.5 billion of liquidity available to meet our
ongoing operating, investing and financing needs, subject to continued covenant
compliance, as noted below (in millions):

                                                                            

As of


                                                                              December 31, 2019
Availability under senior unsecured revolving credit facility (1) (2)        $          1,464
Availability under senior secured hedged inventory facility (1) (2)                     1,054
Amounts outstanding under commercial paper program                                        (93)
Subtotal                                                                                2,425
Cash and cash equivalents                                                                  45
Total                                                                        $          2,470





(1)Represents availability prior to giving effect to borrowings outstanding
under our commercial paper program, which reduce available capacity under the
facilities.
(2)Available capacity under our senior unsecured revolving credit facility and
senior secured hedged inventory facility was reduced by outstanding letters of
credit of $136 million and $21 million, respectively.

We believe that we have, and will continue to have, the ability to access the
commercial paper program and credit facilities, which we use to meet our
short-term cash needs. We believe that our financial position remains strong and
we have sufficient liquidity; however, extended disruptions in the financial
markets and/or energy price volatility that adversely affect
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our business may have a materially adverse effect on our financial condition,
results of operations or cash flows. In addition, usage of our credit
facilities, which provide the financial backstop for our commercial paper
program, is subject to ongoing compliance with covenants. As of December 31,
2019, we were in compliance with all such covenants. Also, see Item 1A. "Risk
Factors" for further discussion regarding such risks that may impact our
liquidity and capital resources.

Cash Flow from Operating Activities



The primary drivers of cash flow from operating activities are (i) the
collection of amounts related to the sale of crude oil, NGL and other products,
the transportation of crude oil and other products for a fee, and the provision
of storage and terminalling services for a fee and (ii) the payment of amounts
related to the purchase of crude oil, NGL and other products and other expenses,
principally field operating costs, general and administrative expenses and
interest expense.

Cash flow from operating activities can be materially impacted by the storage of
crude oil in periods of a contango market, when the price of crude oil for
future deliveries is higher than current prices. In the month we pay for the
stored crude oil, we borrow under our credit facilities or commercial paper
program (or use cash on hand) to pay for the crude oil, which negatively impacts
operating cash flow. Conversely, cash flow from operating activities increases
during the period in which we collect the cash from the sale of the stored crude
oil. Similarly, the level of NGL and other product inventory stored and held for
resale at period end affects our cash flow from operating activities.

In periods when the market is not in contango, we typically sell our crude oil
during the same month in which we purchase it and we do not rely on borrowings
under our credit facilities or commercial paper program to pay for the crude
oil. During such market conditions, our accounts payable and accounts receivable
generally move in tandem as we make payments and receive payments for the
purchase and sale of crude oil in the same month, which is the month following
such activity. In periods during which we build inventory, regardless of market
structure, we may rely on our credit facilities or commercial paper program to
pay for the inventory. In addition, we use derivative instruments to manage the
risks associated with the purchase and sale of our commodities. Therefore, our
cash flow from operating activities may be impacted by the margin deposit
requirements related to our derivative activities. See Note 13 to our
Consolidated Financial Statements for a discussion regarding our derivatives and
risk management activities.

Net cash provided by operating activities for the years ended December 31, 2019,
2018 and 2017 was approximately $2.5 billion, $2.6 billion and $2.5 billion,
respectively, and primarily resulted from earnings from our operations.
Additionally, as discussed further below, changes during these periods in our
inventory levels and associated margin balances required as part of our hedging
activities impacted our cash flow from operating activities.

During 2019, our cash provided by operating activities was positively impacted
by the proceeds from the sale of NGL and crude oil inventory that we held and
also by the lower weighted average price of NGL inventory compared to prior year
amounts.

During 2018, our cash provided by operating activities was favorably impacted by
approximately $250 million of cash received for transactions for which the
revenue has been deferred pending the completion of future performance
obligations. See Note 3 to our Consolidated Financial Statements for additional
information. The favorable impact was partially offset by an increase in the
volume of crude oil inventory that we held, which was funded from earnings from
our operations and proceeds from asset sales.

During 2017, net cash provided by operating activities was positively impacted
by decreases in (i) the volume of crude oil inventory that we held and (ii) the
margin balances required as part of our hedging activities, both of which had
been funded by short-term debt. This was consistent with our plan to reduce our
hedged inventory volumes, and the cash inflows associated with these items
resulted in a favorable impact on our cash provided by operating activities.
However, the favorable effects from such activities were partially offset by
higher weighted average prices and volumes for NGL inventory that was purchased
and stored at the end of the 2017 period in anticipation of the 2017-2018
heating season.

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Acquisitions, Investments, Expansion Capital Expenditures and Divestitures



In addition to our operating needs discussed above, we also use cash for our
acquisition activities and expansion capital projects and maintenance capital
activities. Historically, we have financed these expenditures primarily with
cash generated by operating activities and the financing activities discussed in
"-Equity and Debt Financing Activities" below. In recent years, we have also
used proceeds from our divestiture program, as discussed further below. We have
made and will continue to make capital expenditures for acquisitions, expansion
capital projects and maintenance activities. However, in the near term, we do
not plan to issue common equity to fund such activities. Also see
"-Acquisitions, Capital Projects and Divestitures" for further discussion of
such capital expenditures.

Acquisitions.  The price of acquisitions includes cash paid, assumed liabilities
and net working capital items. Because of the non-cash items included in the
total price of the acquisition and the timing of certain cash payments, the net
cash paid may differ significantly from the total price of the acquisitions
completed during the year. During the years ended December 31, 2019 and 2017, we
paid cash of $50 million and $1.280 billion (net of cash acquired of $4
million), respectively, for acquisitions. We did not acquire any assets in 2018.

Investments. Over the last several years, we have increased our JV related
activities with long-term partners throughout the industry value chain. The vast
majority of our joint ventures are accounted for as investments in
unconsolidated subsidiaries. We generally fund our portion of development,
construction or capital expansion projects of our equity method investees
through capital contributions. See Note 9 to our Consolidated Financial
Statements for additional information regarding our investments in
unconsolidated entities. During the years ended December 31, 2019, 2018 and
2017, we made cash contributions of $504 million, $459 million and $398 million,
respectively, to certain of our equity method investees. We anticipate that we
will make additional contributions in 2020 associated with ongoing projects for
construction and/or expansion projects related to our interests in Wink to
Webster, Red Oak, Cactus II, Capline, Diamond and Saddlehorn joint venture
pipelines.

Divestitures. We have initiated a program to evaluate potential sales of
non-core assets and/or sales of partial interests in assets to strategic joint
venture partners. During the years ended December 31, 2019, 2018 and 2017, we
received proceeds of $205 million, $1.3 billion and $1.1 billion, respectively
from sales of assets. See Note 7 to our Consolidated Financial Statements for
additional information. Proceeds received during 2019 include $128 million
received for a 33% interest in the newly formed joint venture Red River Pipeline
Company LLC. See Note 12 to our Consolidated Financial Statements for additional
information. We intend to continue these efforts in 2020.

Ongoing Acquisition and Divestiture Activities. In January 2020, we acquired a
crude oil gathering system and related assets in the Delaware Basin for
approximately $305 million. In addition, in the first quarter of 2020, we
completed and/or entered into definitive agreements for asset sales of
approximately $273 million. See Note 7 to our Consolidated Financial Statements
for additional information.

2020 Capital Projects. The majority of our 2020 expansion capital program will
be invested in our fee-based Transportation and Facilities segments. We expect
that our investments will have minimal contributions to our 2020 results, but
will provide growth for 2021 and beyond. Our 2020 capital program includes the
following projects as of February 2020 with the estimated cost for the entire
year (in millions):

Projects                                                    2020
Long-Haul Pipeline Projects                              $   450
Permian Basin Takeaway Pipeline Projects                     395
Complementary Permian Basin Projects                         275
Selected Facilities Projects                                  80
Other Projects                                               200

Total Projected 2020 Expansion Capital Expenditures $ 1,400


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Credit Agreements, Commercial Paper Program and Indentures



At December 31, 2019, we had three primary credit arrangements. These include a
$1.6 billion senior unsecured revolving credit facility maturing in 2024, a $1.4
billion senior secured hedged inventory facility maturing in 2022 (excluding
aggregate commitments of $45 million, which mature in 2021) and a $3.0 billion
unsecured commercial paper program that is backstopped by our revolving credit
facility and our hedged inventory facility. Additionally, we have two $100
million GO Zone term loans as discussed further below. The credit agreements for
our revolving credit facilities (which impact our ability to access our
commercial paper program because they provide the financial backstop that
supports our short-term credit ratings) and our term loans and the indentures
governing our senior notes contain cross-default provisions. A default under our
credit agreements or indentures would permit the lenders to accelerate the
maturity of the outstanding debt. As long as we are in compliance with the
provisions in our credit agreements, our ability to make distributions of
available cash is not restricted. We were in compliance with the covenants
contained in our credit agreements and indentures as of December 31, 2019.

In August 2018, we entered into an agreement for two $100 million GO Zone term
loans from the remarketing of our GO Bonds. The GO Zone term loans accrue
interest in accordance with the interest payable on the related GO Bonds as
provided in the GO Bonds Indenture pursuant to which such GO Bonds are issued
and governed. The purchasers of the two GO Zone term loans have the right to
put, at par, the GO Zone term loans in July 2023. The GO Bonds mature by their
terms in May 2032 and August 2035, respectively. See Note 11 to our Consolidated
Financial Statements for additional information.

During the year ended December 31, 2019, we had net borrowings under our credit
facilities and commercial paper program of $418 million. The net borrowings
resulted primarily from borrowings during the period related to funding needs
for general partnership purposes.

During the year ended December 31, 2018, we had net repayments on our credit
facilities and commercial paper program of $901 million. The net repayments
resulted primarily from cash flow from operating activities and proceeds from
asset sales, which offset borrowings during the period related to funding needs
for capital investments, inventory purchases and other general partnership
purposes.

During the year ended December 31, 2017, we had net repayments on our credit
facilities and commercial paper program of $654 million. The net repayments
resulted primarily from cash flow from operating activities and cash received
from our equity activities and asset divestitures, which offset borrowings
during the period related to funding needs for (i) acquisition and capital
investments, (ii) repayment of our $400 million, 6.13% senior notes in January
2017, (iii) repayment of our $600 million, 6.50% senior notes and our $350
million, 8.75% senior notes in December 2017 and (iv) other general partnership
purposes.

Equity and Debt Financing Activities



Our financing activities primarily relate to funding expansion capital projects,
acquisitions and refinancing of our debt maturities, as well as short-term
working capital (including borrowings for NYMEX and ICE margin deposits) and
hedged inventory borrowings related to our NGL business and contango market
activities. Our financing activities have primarily consisted of equity
offerings, senior notes offerings and borrowings and repayments under our credit
facilities or commercial paper program and other debt agreements, as well as
payment of distributions to our unitholders.

Registration Statements.  We periodically access the capital markets for both
equity and debt financing. We have filed with the SEC a universal shelf
registration statement that, subject to effectiveness at the time of use, allows
us to issue up to an aggregate of $1.1 billion of debt or equity securities
("Traditional Shelf"). All issuances of equity securities associated with our
continuous offering program have been issued pursuant to the Traditional Shelf.
We did not conduct any offerings under our Traditional Shelf during the years
ended December 31, 2019 or 2018. At December 31, 2019, we had approximately $1.1
billion of unsold securities available under the Traditional Shelf. We also have
access to a universal shelf registration statement ("WKSI Shelf"), which
provides us with the ability to offer and sell an unlimited amount of debt and
equity securities, subject to market conditions and our capital needs. The
issuance of $1.0 billion, 3.55% senior notes in September 2019 and our Series B
preferred units in October 2017, as discussed further below, were conducted
under our WKSI Shelf.

Preferred Units. On October 10, 2017, we issued 800,000 Series B preferred units
at a price to the public of $1,000 per unit. We used the net proceeds of $788
million, after deducting the underwriters' discounts and offering expenses, from
the issuance of the Series B preferred units to repay amounts outstanding under
our credit facilities and commercial paper program and for general partnership
purposes, including expenditures for our capital program. See "Distributions to
Our Unitholders " below and Note 12 to our Consolidated Financial Statements for
additional information regarding the Series B preferred units.

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While our Series A and Series B preferred units are considered equity securities
and are classified within partners' capital on our Consolidated Balance Sheet,
the two out of the three rating agencies that rate us as investment grade only
ascribe 50% equity credit with the remaining 50% considered debt for purposes of
determining our credit ratings. The remaining rating agency ascribes 100% equity
credit while we are rated below investment grade, but will change its approach
to 50% equity credit and 50% debt if the rating agency changes our rating to
investment grade.

Common Units. We did not sell any common units during the years ended December
31, 2019 or 2018. During the year ended December 31, 2017, we sold approximately
54.1 million common units for proceeds of approximately $1.7 billion, which were
used for general partnership purposes, including repayment of amounts borrowed
to fund the ACC Acquisition. See Note 12 to our Consolidated Financial
Statements for additional information related to these sales of common units.

Issuances of Senior Notes. We did not issue any senior unsecured notes during the years ended December 31, 2018 or 2017. During 2019, we issued senior unsecured notes as summarized in the table below (in millions):



                                                                                                               Gross                Net
Year                         Description                          Maturity              Face Value          Proceeds(1)         Proceeds(2)
               3.55% Senior Notes issued at 99.801% of
2019                         face value                         December 2029          $    1,000          $      998          $      989





(1)Face value of notes less the applicable premium or discount (before deducting
for initial purchaser discounts, commissions and offering expenses).
(2)Face value of notes less the applicable premium or discount, initial
purchaser discounts, commissions and offering expenses. We used the net proceeds
from the offering to partially repay the principal amounts of our 2.60% senior
notes due December 2019 and 5.75% senior notes due January 2020 and for general
partnership purposes.

Repayments of Senior Notes. We did not repay any senior unsecured notes during 2018. During 2019 and 2017, we repaid the following senior unsecured notes (in millions):


 Year                          Description                          

Repayment Date

2019 $500 million 2.60% Senior Notes due December 2019 November 2019 (1)

2019 $500 million 5.75% Senior Notes due January 2020 December 2019 (1)

2017 $400 million 6.13% Senior Notes due January 2017 January 2017 (2)

2017 $600 million 6.50% Senior Notes due May 2018 December 2017 (2) (3)

2017 $350 million 8.75% Senior Notes due May 2019 December 2017 (2) (3)







(1)We repaid these senior notes with proceeds from our 3.55% senior notes issued
in September 2019 and cash on hand.
(2)We repaid these senior notes with cash on hand and proceeds from borrowings
under our credit facilities and commercial paper program.
(3)In conjunction with the early redemptions of these senior notes, we
recognized a loss of approximately $40 million, recorded to "Other
income/(expense), net" in our Consolidated Statement of Operations.
Distributions to Our Unitholders

In accordance with our partnership agreement, after making distributions to
holders of our outstanding preferred units, we distribute the remainder of our
available cash to our common unitholders of record within 45 days following the
end of each quarter. Available cash is generally defined as all of our cash and
cash equivalents on hand at the end of each quarter less reserves established in
the discretion of our general partner for future requirements. Our levels of
financial reserves are established by our general partner and include reserves
for the proper conduct of our business (including future capital expenditures
and anticipated credit needs), compliance with law or contractual obligations
and funding of future distributions to our Series A and Series B preferred
unitholders. Our available cash also includes cash on hand resulting from
borrowings made after the end of the quarter.

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See Note 12 to our Consolidated Financial Statements for details of
distributions paid during the three years ended December 31, 2019. Also, see
Item 5. "Market for Registrant's Common Units, Related Unitholder Matters and
Issuer Purchases of Equity Securities-Cash Distribution Policy" for additional
discussion regarding distributions.

Distributions to our Series A preferred unitholders. Holders of our Series A
preferred units are entitled to receive quarterly distributions, subject to
customary anti-dilution adjustments, of $0.525 per unit ($2.10 per unit
annualized), which commenced with the quarter ending March 31, 2016. With
respect to each quarter ending on or prior to December 31, 2017, we elected to
pay distributions on our Series A preferred units in additional Series A
preferred units. Beginning with the distribution with respect to the quarter
ended March 31, 2018, distributions on our Series A preferred units are paid in
cash. Subject to certain limitations, following January 28, 2021, the holders of
our Series A preferred units may make a one-time election to reset the
distribution rate. See Note 12 to our Consolidated Financial Statements for
additional information.

Distributions to our Series B preferred unitholders. Holders of our Series B
preferred units are entitled to receive, when, as and if declared by our general
partner out of legally available funds for such purpose, cumulative cash
distributions, as applicable. Through and including November 15, 2022, holders
are entitled to a distribution equal to $61.25 per unit per year, payable
semiannually in arrears on the 15th day of May and November. See Note 12 to our
Consolidated Financial Statements for further discussion of our Series B
preferred units, including distribution rates and payment dates after November
15, 2022.

Distributions to our common unitholders.  On February 14, 2020, we paid a
quarterly distribution of $0.36 per common unit ($1.44 per unit on an annualized
basis). The total distribution of $262 million was paid to unitholders of record
as of January 31, 2020, with respect to the quarter ending December 31, 2019.

We believe that we have sufficient liquid assets, cash flow from operating
activities and borrowing capacity under our credit agreements to meet our
financial commitments, debt service obligations, contingencies and anticipated
capital expenditures. We are, however, subject to business and operational risks
that could adversely affect our cash flow. A prolonged material decrease in our
cash flows would likely produce an adverse effect on our borrowing capacity.

Contingencies

For a discussion of contingencies that may impact us, see Note 19 to our Consolidated Financial Statements.

Commitments



Contractual Obligations.  In the ordinary course of doing business, we purchase
crude oil and NGL from third parties under contracts, the majority of which
range in term from thirty-day evergreen to five years, with a limited number of
contracts with remaining terms extending up to ten years. We establish a margin
for these purchases by entering into various types of physical and financial
sale and exchange transactions through which we seek to maintain a position that
is substantially balanced between purchases on the one hand and sales and future
delivery obligations on the other. The table below includes purchase obligations
related to these activities. Where applicable, the amounts presented represent
the net obligations associated with our counterparties (including giving effect
to netting buy/sell contracts and those subject to a net settlement
arrangement). We do not expect to use a significant amount of internal capital
to meet these obligations, as the obligations will be funded by corresponding
sales to entities that we deem creditworthy or who have provided credit support
we consider adequate.

The following table includes our best estimate of the amount and timing of these payments as well as other amounts due under the specified contractual obligations as of December 31, 2019 (in millions):


                                                                                                                                2025 and
                                       2020              2021              2022              2023              2024            Thereafter            Total
Long-term debt and related
interest payments (1)               $    411          $    984          $  1,115          $  1,636          $  1,055          $    8,753          $ 13,954
Leases (2)                               130                99                91                69                57                 308               754
Other obligations (3)                  1,098               743               306               293               287               1,194             3,921
Subtotal                               1,639             1,826             1,512             1,998             1,399              10,255            18,629
Crude oil, NGL and other
purchases (4)                         14,836            12,525            12,028            10,893             9,650              16,789            76,721
Total                               $ 16,475          $ 14,351          $ 13,540          $ 12,891          $ 11,049          $   27,044          $ 95,350





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(1)Includes debt service payments, interest payments due on senior notes and the
commitment fee on assumed available capacity under our credit facilities, as
well as long-term borrowings under our credit agreements and commercial paper
program, if any. Although there may be short-term borrowings under our credit
agreements and commercial paper program, we historically repay and borrow at
varying amounts. As such, we have included only the maximum commitment fee (as
if no short-term borrowings were outstanding on the credit agreements or
commercial paper program) in the amounts above. For additional information
regarding our debt obligations, see Note 11 to our Consolidated Financial
Statements.
(2)Includes both operating and finance leases as defined by FASB guidance.
Leases are primarily for (i) railcars, (ii) office space, (iii) land, (iv)
vehicles, (v) storage tanks and (vi) tractor trailers. See Note 14 to our
Consolidated Financial Statements for additional information.
(3)Includes (i) other long-term liabilities, (ii) storage, processing and
transportation agreements (including certain agreements for which the amount and
timing of expected payments is subject to the completion of underlying
construction projects), (iii) certain rights-of-way easements and (iv)
noncancelable commitments related to our capital expansion projects, including
projected contributions for our share of the capital spending of our equity
method investments. The storage, processing and transportation agreements
include approximately $1.8 billion associated with agreements to store, process
and transport crude oil at posted tariff rates on pipelines or at facilities
that are owned by equity method investees. A portion of our commitment to
transport is supported by crude oil buy/sell or other agreements with third
parties with commensurate quantities.
(4)Amounts are primarily based on estimated volumes and market prices based on
average activity during December 2019. The actual physical volume purchased and
actual settlement prices will vary from the assumptions used in the table.
Uncertainties involved in these estimates include levels of production at the
wellhead, weather conditions, changes in market prices and other conditions
beyond our control.

Letters of Credit.  In connection with supply and logistics activities, we
provide certain suppliers with irrevocable standby letters of credit to secure
our obligation for the purchase and transportation of crude oil, NGL and natural
gas. Our liabilities with respect to these purchase obligations are recorded in
accounts payable on our balance sheet in the month the product is purchased.
Generally, these letters of credit are issued for periods of up to seventy days
and are terminated upon completion of each transaction. Additionally, we issue
letters of credit to support insurance programs, derivative transactions,
including hedging-related margin obligations, and construction activities. At
December 31, 2019 and 2018, we had outstanding letters of credit of
approximately $157 million and $184 million, respectively.

Off-Balance Sheet Arrangements

We have no off-balance sheet arrangements as defined by Item 303 of Regulation S-K.


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Investments in Unconsolidated Entities



We have invested in entities that are not consolidated in our financial
statements. Certain of these entities are borrowers under credit facilities. We
are neither a co-borrower nor a guarantor under any facilities of such entities.
We may elect at any time to make additional capital contributions to any of
these entities. The following table sets forth selected information regarding
these entities as of December 31, 2019 (unaudited, dollars in millions):

                                                                                                                   Total Cash
                                                                                Our                Total              and              Total
                                                                             Ownership             Entity          Restricted          Entity
Entity                                     Type of Operation                  Interest             Assets             Cash              Debt
Advantage Pipeline Holdings
LLC                                        Crude Oil Pipeline                  50%               $   153          $     11           $     -
BridgeTex Pipeline Company,
LLC                                        Crude Oil Pipeline                  20%               $   889          $     42           $     -
Cactus II Pipeline LLC                   Crude Oil Pipeline (2)                65%               $ 1,195          $     57           $     -
Caddo Pipeline LLC                       Crude Oil Pipeline (2)                50%               $   127          $      5           $     -
Capline Pipeline Company LLC               Crude Oil Pipeline                  54%               $ 1,173          $     42           $     -
Cheyenne Pipeline LLC                    Crude Oil Pipeline (2)                50%               $    63          $      4           $     -
Cushing Connect Pipeline &               Crude Oil Pipeline (1)
Terminal LLC                                and Terminal (2)                   50%               $    49          $      7           $     -
Diamond Pipeline LLC                     Crude Oil Pipeline (2)                50%               $   933          $      1           $     -
Eagle Ford Pipeline LLC                  Crude Oil Pipeline (2)                50%               $   819          $     20           $     -
Eagle Ford Terminals Corpus           Crude Oil Terminal and Dock
Christi LLC                                       (2)                          50%               $   229          $      2           $     -
Midway Pipeline LLC                      Crude Oil Pipeline (2)                50%               $    41          $      5           $     -
Red Oak Pipeline LLC                     Crude Oil Pipeline (1)                50%               $    57          $      -           $     -
Saddlehorn Pipeline Company,
LLC                                        Crude Oil Pipeline                  40%               $   604          $     37           $     -
Settoon Towing, LLC                  Barge Transportation Services             50%               $    55          $      8           $     3
STACK Pipeline LLC                       Crude Oil Pipeline (2)                50%               $   152          $      2           $     -
White Cliffs Pipeline, LLC                 Crude Oil Pipeline                  36%               $   531          $     18           $     -
Wink to Webster Pipeline LLC             Crude Oil Pipeline (1)                16%               $   845          $     76           $     -





(1)Asset is currently under construction or development by the entity and has
not yet been placed in service.
(2)We serve as operator of the asset.


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