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 and Management's Discussion and Analysis of Financial
Condition and Results of Operations as presented in our 2020 Annual Report on
Form 10-K. For more detailed information regarding the basis of presentation for
the following financial information, see the Condensed Consolidated Financial
Statements and related notes that are contained in Part I, Item 1 of this
Quarterly Report on Form 10-Q.

Our discussion and analysis includes the following:



•Executive Summary
•Results of Operations
•Liquidity and Capital Resources
•Off-Balance Sheet Arrangements
•Recent Accounting Pronouncements
•Critical Accounting Policies and Estimates
•Forward-Looking Statements

Executive Summary

Company Overview

We are a Delaware limited partnership formed on July 17, 2013 that has elected
to be taxed as a corporation for United States federal income tax purposes. As
of June 30, 2021, our sole cash-generating assets consisted of (i) a 100%
managing member interest in Plains All American GP LLC ("GP LLC") that has also
elected to be taxed as a corporation for United States federal income tax
purposes and (ii) an approximate 79% limited partner interest in AAP through our
direct ownership of approximately 193.1 million AAP units and indirect ownership
of approximately 1.0 million AAP units through GP LLC. GP LLC is a Delaware
limited liability company that also holds the non-economic general partner
interest in AAP. AAP is a Delaware limited partnership that, as of June 30,
2021, directly owned a limited partner interest in PAA through its ownership of
approximately 245.0 million PAA common units (approximately 31% of PAA's total
outstanding common units and Series A preferred units combined). AAP is the sole
member of PAA GP LLC ("PAA GP"), a Delaware limited liability company that
directly holds the non-economic general partner interest in PAA.

PAA's business model integrates large-scale supply aggregation capabilities with
the ownership and operation of critical midstream infrastructure systems that
connect major producing regions to key demand centers and export terminals. As
one of the largest midstream service providers in North America, we own an
extensive network of pipeline transportation, terminalling, storage and
gathering assets in key crude oil and NGL producing basins (including the
Permian Basin) and transportation corridors and at major market hubs in the
United States and Canada. PAA's assets and the services it provides are
primarily focused on crude oil, NGL and natural gas. PAA's business activities
are conducted through three operating segments: Transportation, Facilities and
Supply and Logistics. See "-Results of Operations-Analysis of Operating
Segments" for further discussion.


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Table of Contents Overview of Operating Results, Capital Investments and Other Significant Activities



During the first six months of 2021, we recognized net income of $181 million as
compared to a net loss of $2.556 billion recognized during the first six months
of 2020.

The net loss for the 2020 period was primarily driven by goodwill impairment
losses and non-cash impairment charges related to the write-down of certain
pipeline and other long-lived assets, certain of our investments in
unconsolidated entities, and assets upon classification as held for sale
totaling approximately $3.24 billion. In addition, we recognized approximately
$232 million of inventory valuation adjustments due to declines in commodity
prices during the first quarter of 2020. The comparable six month 2021 period
includes a net loss on asset sales and asset impairments of $370 million.

Results from our reporting segments during the first six months of 2021
decreased from the comparable 2020 period driven primarily by the impact of less
favorable crude oil market conditions combined with lower realized NGL margins
in our Supply and Logistics segment. In addition, our Facilities segment was
unfavorably impacted by reduced NGL capacity utilization and market rates as
well as the impact of asset sales. These unfavorable results were partially
offset by favorable Transportation segment results that benefited from the
collection of deficiency payments associated with minimum volume commitments and
lower operating costs.

See further discussion of our operating results in the "-Results of Operations-Analysis of Operating Segments" and "-Other Income and Expenses" sections below.

We invested $142 million in midstream infrastructure projects during the six months ended June 30, 2021, which primarily related to projects under development in the Permian Basin.

We paid cash distributions of approximately $365 million to our Class A shareholders and noncontrolling interests during the six months ended June 30, 2021.



PAA repurchased 5,290,592 common units for $53 million during the six months
ended June 30, 2021, including $3 million associated with repurchases executed
in December 2020 that settled in January 2021. See "-Liquidity and Capital
Resources-Financing Activities-Common Equity Repurchase Program" for additional
information.

Recent Events

In July 2021, we entered into a definitive agreement with Oryx Midstream
pursuant to which we and Oryx Midstream intend to merge our respective Permian
Basin assets, operations and commercial activities into a newly formed strategic
joint venture, Plains Oryx Permian Basin. The transaction will include all of
Oryx's Permian Basin assets and, with the exception of our long-haul pipeline
systems and certain of our intra-basin terminal assets, the vast majority of our
assets located within the Permian Basin. We will own 65% of Plains Oryx Permian
Basin, operate the combined assets, and consolidate the financial results of the
joint venture into our financial statements. Structured as a debt-free joint
venture entity through a cashless transaction, this aligns with our financial
and portfolio optimization strategies, is near-term free cash flow accretive,
and reinforces our ability to maximize free cash flow for our investors, while
enhancing our overall credit profile. Subject to satisfaction of customary and
other closing conditions and receipt of regulatory approvals, the transactions
contemplated by the merger agreement are expected to close in the fourth quarter
of 2021.

On August 2, 2021, we completed the sale of our Pine Prairie and Southern Pines
natural gas storage facilities for $850 million, subject to certain adjustments.
See Note 12 to our Condensed Consolidated Financial Statements for additional
information.
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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 share data):



                                                Three Months Ended                                                              Six Months Ended
                                                     June 30,                             Variance                                  June 30,                            Variance
                                               2021                2020              $                %                       2021               2020              $                %
Transportation Segment Adjusted EBITDA
(1)                                     $       433              $  346          $    87               25  %             $    821             $   788          $    33                4  %
Facilities Segment Adjusted EBITDA (1)          140                 174              (34)             (20) %                  311                 384              (73)             (19) %
Supply and Logistics Segment Adjusted
EBITDA (1)                                        5                   3                2               67  %                   (8)                144             (152)            (106) %

Adjustments:


Depreciation and amortization of
unconsolidated entities                         (68)                (16)             (52)            (325) %                  (88)                (33)             (55)            (167) %
Selected items impacting comparability
- Segment Adjusted EBITDA                      (148)                (51)             (97)                 **                  119                (189)             308                  **
Unallocated general and administrative
expenses                                         (2)                 (2)               -                -  %                   (3)                 (3)               -                -  %
Depreciation and amortization                  (197)               (166)             (31)             (19) %                 (375)               (335)             (40)             (12) %
Gains/(losses) on asset sales and asset
impairments, net                               (369)                  1             (370)                 **                 (370)               (618)             248               40  %
Goodwill impairment losses                        -                   -                -                 N/A                    -              (2,515)           2,515              100  %
Gain on/(impairment of) investments in
unconsolidated entities, net                      -                 (69)              69              100  %                    -                 (91)              91              100  %
Interest expense, net                          (107)               (108)               1                1  %                 (213)               (215)               2                1  %
Other income/(expense), net                      84                  18               66              367  %                   23                 (13)              36              277  %
Income tax (expense)/benefit                     17                   7               10              143  %                  (36)                140             (176)            (126) %
Net income/(loss)                              (212)                137             (349)            (255) %                  181              (2,556)           2,737              107  %
Net (income)/loss attributable to
noncontrolling interests                        143                (121)             264              218  %                 (180)              1,991           (2,171)            (109) %
Net income/(loss) attributable to PAGP  $       (69)             $   16          $   (85)                 **             $      1             $  (565)         $   566              100  %

Basic and diluted net income/(loss) per
Class A share                           $     (0.35)             $ 0.09          $ (0.44)            (489) %             $      -             $ (3.08)         $  3.08              100  %

Basic and diluted weighted average
Class A shares outstanding                      194                 184               10                5  %                  194                 183               11                6  %



** Indicates that variance as a percentage is not meaningful. (1)Segment Adjusted EBITDA is the measure of segment performance that is utilized by our 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 11 to our Condensed 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 measure used by management is earnings before interest,
taxes, depreciation and amortization (including our proportionate share of
depreciation and amortization, including write-downs related to cancelled
projects, of unconsolidated entities), gains and losses on asset sales and asset
impairments, goodwill impairment losses and gains on and impairments of
investments in unconsolidated entities, adjusted for certain selected items
impacting comparability ("Adjusted EBITDA").

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

Management believes that the presentation of Adjusted EBITDA provides useful
information to investors regarding our performance and results of operations
because this measure, when used to supplement related GAAP financial measures,
(i) provides additional information about our core operating performance,
(ii) provides investors with the same financial analytical framework upon which
management bases financial, operational, compensation and planning/budgeting
decisions and (iii) presents measures that investors, rating agencies and debt
holders have indicated are useful in assessing us and our results of operations.
This non-GAAP measure 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/or (v) other items that we believe
should be excluded in understanding our core operating performance. This measure
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 Condensed 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, divestitures, investment capital projects and numerous other factors as discussed, as applicable, in "-Analysis of Operating Segments."


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Table of Contents The following table sets forth the reconciliation of the non-GAAP financial performance measure Adjusted EBITDA from Net Income/(Loss) (in millions):



                                               Three Months Ended                                                           Six Months Ended
                                                    June 30,                           Variance                                 June 30,                           Variance
                                               2021              2020             $                %                     2021              2020               $                %

Net income/(loss)                         $      (212)         $ 137          $  (349)            (255) %             $    181          $ (2,556)         $ 2,737              107  %

Add/(Subtract):


Interest expense, net                             107            108               (1)              (1) %                  213               215               (2)              (1) %
Income tax expense/(benefit)                      (17)            (7)             (10)            (143) %                   36              (140)             176              126  %
Depreciation and amortization                     197            166               31               19  %                  375               335               40               12  %
(Gains)/losses on asset sales and asset
impairments, net                                  369             (1)             370                  **                  370               618             (248)             (40) %
Goodwill impairment losses                          -              -                -                 N/A                    -             2,515           (2,515)            (100) %
(Gain on)/impairment of investments in
unconsolidated entities, net                        -             69              (69)            (100) %                    -                91              (91)            (100) %
Depreciation and amortization of
unconsolidated entities (1)                        68             16               52              325  %                   88                33               55              167  %
Selected Items Impacting Comparability:
(Gains)/losses from derivative activities
and inventory valuation adjustments               163             90               73                  **                  (35)              121             (156)                 **
Long-term inventory costing adjustments           (27)           (51)              24                  **                  (68)               64             (132)                 **
Deficiencies under minimum volume
commitments, net                                    6              7               (1)                 **                  (26)                6              (32)                 **
Equity-indexed compensation expense                 4              5               (1)                 **                    9                 8                1                  **
Net gain on foreign currency revaluation           (1)             -               (1)                 **                   (2)              (13)              11                  **

Significant transaction-related expenses            3              -                3                  **                    3                 3                -                  **
Selected Items Impacting Comparability -
Segment Adjusted EBITDA (2)                       148             51               97                  **                 (119)              189             (308)                 **
(Gains)/losses from derivative activities
(3)                                               (77)             9              (86)                 **                   (9)              (17)               8                  **
Net (gain)/loss on foreign currency
revaluation (4)                                    (6)           (23)              17                  **                  (13)               36              (49)                 **
Net gain on early repayment of senior
notes (5)                                           -             (3)               3                  **                    -                (3)               3                  **
Selected Items Impacting Comparability -
Adjusted EBITDA (6)                                65             34               31                  **                 (141)              205             (346)                 **
Adjusted EBITDA (6)                       $       577          $ 522          $    55               11  %             $  1,122          $  1,316          $  (194)             (15) %




**  Indicates that variance as a percentage is not meaningful.
(1)We exclude our proportionate share of the depreciation and amortization
expense (including write-downs related to cancelled projects) of such
unconsolidated entities when reviewing Adjusted EBITDA, similar to our
consolidated assets.
(2)For a more detailed discussion of these selected items impacting
comparability, see the footnotes to the Segment Adjusted EBITDA Reconciliation
table in Note 11 to our Condensed Consolidated Financial Statements.
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(3)The Preferred Distribution Rate Reset Option of PAA's Series A preferred
units is accounted for as an embedded derivative and recorded at fair value in
our Condensed Consolidated Financial Statements. The associated gains and losses
are not integral to our results and were thus classified as a selected item
impacting comparability. See Note 8 to our Condensed Consolidated Financial
Statements for additional information regarding the Preferred Distribution Rate
Reset Option.
(4)During the periods presented, there were fluctuations in the value of the
Canadian dollar ("CAD") to the U.S. dollar ("USD"), resulting in the realization
of foreign exchange gains and losses on the settlement of foreign currency
transactions as well as the revaluation of monetary assets and liabilities
denominated in a foreign currency. The associated gains and losses are not
integral to our results and were thus classified as a selected item impacting
comparability.
(5)Includes net gains recognized in connection with the repurchase of our
outstanding senior notes on the open market.
(6)Other income/(expense), net per our Condensed 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.

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 (including
write-downs related to cancelled projects) of 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 11 to our Condensed Consolidated Financial Statements for
a reconciliation of Segment Adjusted EBITDA to Net income/(loss) attributable to
PAGP.

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.

Transportation Segment

Our Transportation segment operations generally consist of fee-based activities
associated with transporting crude oil and NGL on pipelines, gathering systems
and trucks. 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.

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The following tables set forth our operating results from our Transportation
segment:

                                                                  Three Months Ended                                                            Six Months Ended
Operating Results (1)                                                  June 30,                             Variance                                June 30,                           Variance
(in millions, except per barrel data)                            2021                2020              $                %                     2021              2020              $                %
Revenues                                                  $      553               $  457          $    96              21  %             $   1,039          $ 1,036          $     3                -  %
Purchases and related costs                                      (60)                 (44)             (16)            (36) %                  (106)            (124)              18               15  %
Field operating costs                                           (140)                (140)               -               -  %                  (245)            (302)              57               19  %
Segment general and administrative expenses (2)                  (28)                 (24)              (4)            (17) %                   (54)             (51)              (3)              (6) %
Equity earnings in unconsolidated entities                        31                   81              (50)            (62) %                   117              189              (72)             (38) %

Adjustments: (3)
Depreciation and amortization of unconsolidated
entities                                                          67                   15               52             347  %                    87               32               55              172  %
Losses from derivative activities and inventory
valuation adjustments                                             (1)                  (6)               5                 **                    (1)               -               (1)                 **
Deficiencies under minimum volume commitments, net                 7                    4                3                 **                   (23)               -              (23)                 **
Equity-indexed compensation expense                                2                    3               (1)                **                     5                5                -                  **

Significant transaction-related expenses                           2                    -                2                 **                     2                3               (1)                 **
Segment Adjusted EBITDA                                   $      433               $  346          $    87              25  %             $     821          $   788          $    33                4  %
Maintenance capital                                       $       20               $   31          $   (11)            (35) %             $      47          $    64          $   (17)             (27) %
Segment Adjusted EBITDA per barrel                        $     0.76               $ 0.64          $  0.12              19  %             $    0.76          $  0.66          $  0.10               15  %



                                                                 Three Months Ended                                                                      Six Months Ended
Average Daily Volumes                                                 June 30,                                 Variance                                      June 30,                                Variance
(in thousands of barrels per day) (4)                        2021                   2020               Volumes               %                      2021                  2020               Volumes               %
Tariff activities volumes
Crude oil pipelines (by region):
Permian Basin (5)                                            4,189                 4,161                     28                1  %                 3,972                 4,663                  (691)             (15) %
South Texas / Eagle Ford (5)                                   314                   321                     (7)              (2) %                   317                   389                   (72)             (19) %
Central (5)                                                    467                   355                    112               32  %                   420                   380                    40               11  %
Gulf Coast                                                     159                   118                     41               35  %                   152                   131                    21               16  %
Rocky Mountain (5)                                             327                   244                     83               34  %                   307                   258                    49               19  %
Western                                                        256                   215                     41               19  %                   246                   209                    37               18  %
Canada                                                         294                   242                     52               21  %                   305                   285                    20                7  %
Crude oil pipelines                                          6,006                 5,656                    350                6  %                 5,719                 6,315                  (596)              (9) %
NGL pipelines                                                  181                   194                    (13)              (7) %                   182                   190                    (8)              (4) %
Tariff activities total volumes                              6,187                 5,850                    337                6  %                 5,901                 6,505                  (604)              (9) %
Trucking volumes                                                61                    64                     (3)              (5) %                    65                    80                   (15)             (19) %
Transportation segment total volumes                         6,248                 5,914                    334                6  %                 5,966                 6,585                  (619)              (9) %



** Indicates that variance as a percentage is not meaningful. (1)Revenues and costs and expenses include intersegment amounts.


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(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 11 to our Condensed
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 period divided by the number of days in the period.
(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 periods indicated.

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                                                         Favorable/(Unfavorable) Variance
                                                                              Three Months Ended June 30,                                                               Six Months Ended June 30,
                                                                                       2021-2020                                                                                2021-2020
                                                                                              Purchases and            Equity                                                           Purchases and            Equity
(in millions)                                                    Revenues                     Related Costs           Earnings                            Revenues                      Related Costs           Earnings
Permian Basin region                                  $        60                           $          (16)         $      (11)               $         7                             $            7          $      (17)
South Texas / Eagle Ford region                                (1)                                       -                  (2)                        (8)                                         -                 (12)
Central region                                                  8                                        -                 (21)                         3                                          1                 (24)
Gulf Coast region                                               2                                        -                 (12)                         2                                          -                 (11)
Rocky Mountain region                                           8                                        -                  (2)                        12                                          -                  (8)
Canada region                                                  10                                        -                   -                          5                                          -                   -
Other regions, NGL pipelines, trucking and
pipeline loss allowance revenue                                 9                                        -                  (2)                       (18)                                        10                   -
Total variance                                        $        96                           $          (16)         $      (50)               $         3                             $           18          $      (72)



•Permian Basin region. Revenues, net of purchases and related costs, ("net
revenues") increased by $44 million and $14 million for the three and six months
ended June 30, 2021, respectively, compared to the same periods in 2020
primarily due to the recognition of revenue associated with minimum volume
commitments. The recognition of previously deferred revenue associated with
minimum volume commitments is reflected as an "Adjustment" in the table above as
discussed further below under "-Adjustments: Deficiencies under minimum volume
commitments, net." The three-month comparative period was further favorably
impacted by higher long-haul movements to Cushing, Oklahoma in the second
quarter of 2021, as well as an increase in volumes on our gathering pipelines as
a result of new connections and increased production, partially offset by lower
volumes on our intra-basin pipelines. The six-month comparative period was
further unfavorably impacted by lower volumes of crude oil produced in the
Permian Basin in the first quarter of 2021, driven by the COVID-19
pandemic-related reset to production and compounded by shut-ins from the extreme
winter weather event that occurred in February of 2021 ("Winter Storm Uri").

Equity earnings decreased for the three and six months ended June 30, 2021
compared to the same periods in 2020 primarily due to our proportionate share of
the write-off of costs associated with a capital project canceled during the
second quarter of 2021, which is included in the table above as an "Adjustment"
in "Depreciation and amortization of unconsolidated entities." The six-month
comparative period was further unfavorably impacted by depreciation expense and
transition costs associated with phase one of the Wink to Webster pipeline being
placed into service during the first quarter of 2021, partially offset by lower
power costs related to Winter Storm Uri.

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•South Texas / Eagle Ford region. Revenues decreased for the six months ended
June 30, 2021 compared to the same periods in 2020 due to lower production,
including curtailments from Winter Storm Uri.

Equity earnings from our 50% interest in Eagle Ford Pipeline LLC decreased for
the six months ended June 30, 2021 compared to the same period in 2020 due to a
combination of lower joint tariff volumes from the Permian Basin via our Cactus
I pipeline, and to a lesser extent, lower regional receipts, partially offset by
the recognition of previously deferred revenue associated with minimum volume
commitments. The recognition of such revenue is reflected as an "Adjustment" in
the table above as discussed further below under "-Adjustments: Deficiencies
under minimum volume commitments, net."

•Central region. Revenues increased for the three and six months ended June 30,
2021 compared to the same periods in 2020 primarily due to higher volumes on
certain of our pipelines in the region, including the Red River pipeline, as a
result of an increase in committed volumes and an expansion placed into service
in October 2020.

Equity earnings decreased for the three and six months ended June 30, 2021
compared to the same periods in 2020 primarily due our proportionate share of
Diamond Pipeline's write-off of costs associated with the cancellation of the
Byhalia Connection construction project during the second quarter of 2021, which
is included in the table above as an "Adjustment" in "Depreciation and
amortization of unconsolidated entities."

•Gulf Coast region. Equity earnings decreased for the three and six months ended
June 30, 2021 compared to the same periods in 2020 primarily due to our
proportionate share of Capline Pipeline's write-off of costs associated with the
cancellation of the Byhalia Connection construction project during the second
quarter of 2021, which is included in the table above as an "Adjustment" in
"Depreciation and amortization of unconsolidated entities."

•Rocky Mountain region. Revenues increased for the three and six months ended June 30, 2021 compared to the same periods in 2020 primarily due to higher volumes.

Equity earnings decreased for the three and six months ended June 30, 2021 compared to the same periods in 2020 primarily due to the expiration of higher-tariff volume commitments in the current period on the White Cliffs pipeline, partially offset by higher volumes from committed shippers on the Saddlehorn pipeline.



•Canada region. Revenues increased for the three and six months ended June 30,
2021 compared to the same periods in 2020 primarily due to higher volumes from
increased production and favorable foreign exchange impacts. Such favorable
impacts were partially offset by a decrease in intersegment fees to reflect
lower utilization and market rates, which had an offsetting favorable impact on
our Supply and Logistics segment.

•Other regions, NGL pipelines, trucking and pipeline loss allowance revenue. The
increase in net revenues for the three months ended June 30, 2021 compared to
the same period in 2020 was primarily due to higher pipeline loss allowance
revenue in 2021 primarily due to higher prices. The decrease in net revenues for
the six months ended June 30, 2021 compared to the same period in 2020 was
primarily due to lower pipeline loss allowance revenue due to lower volumes,
partially offset by higher prices. Such unfavorable impacts were offset by lower
trucking costs driven by lower volumes.

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 three months ended June 30, 2021 and 2020, amounts billed to
counterparties exceeded revenue recognized during the periods that was
previously deferred. For the six months ended June 30, 2021, the recognition of
previously deferred revenue exceeded amounts billed to counterparties associated
with deficiencies under minimum volume commitments.

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Field Operating Costs. The decrease in field operating costs for the six months
ended June 30, 2021 compared to the same period in 2020 was primarily due to (i)
lower power costs, including the impact of gains related to hedged power costs
resulting from Winter Storm Uri and (ii) streamlining efforts which have
resulted in decreases in variable costs and maintenance and chemicals and
additives costs.

Segment General and Administrative Expenses. The increase in segment general and
administrative expenses for the three and six months ended June 30, 2021
compared to the same periods in 2020 was primarily due to increased information
systems costs and reduced wage subsidies received by our Canadian subsidiary in
the current periods.

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 decrease in maintenance capital spending for the three and six months ended
June 30, 2021 compared to the same periods in 2020 was primarily due to timing
changes, the completion of multi-year reliability improvement programs and
application of updated regulatory guidance, among other factors.

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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.

The following tables set forth our operating results from our Facilities
segment:

                                                                Three Months Ended                                                             Six Months Ended
Operating Results (1)                                                June 30,                             Variance                                 June 30,                            Variance
(in millions, except per barrel data)                          2021                2020              $                %                      2021               2020              $                %
Revenues                                                $      244               $  276          $   (32)            (12) %             $     515             $  589          $   (74)            (13) %
Purchases and related costs                                     (3)                  (7)               4              57  %                    (6)               (10)               4              40  %
Field operating costs                                          (74)                 (72)              (2)             (3) %                  (151)              (159)               8               5  %
Segment general and administrative expenses (2)                (21)                 (27)               6              22  %                   (41)               (46)               5              11  %
Equity earnings in unconsolidated entities                       2                    -                2                N/A                     4                  2                2             100  %

Adjustments: (3)
Depreciation and amortization of unconsolidated
entities                                                         1                    1                -                 **                     1                  1                -                 **
(Gains)/losses from derivative activities                       (9)                  (1)              (8)                **                   (10)                 -              (10)                **
Deficiencies under minimum volume commitments,
net                                                             (1)                   3               (4)                **                    (3)                 6               (9)                **

Equity-indexed compensation expense                              1                    1                -                 **                     2                  1                1                 **
Segment Adjusted EBITDA                                 $      140               $  174          $   (34)            (20) %             $     311             $  384          $   (73)            (19) %
Maintenance capital                                     $       14               $   15          $    (1)             (7) %             $      20             $   29          $    (9)            (31) %
Segment Adjusted EBITDA per barrel                      $     0.40               $ 0.47          $ (0.07)            (15) %             $    0.45             $ 0.51          $ (0.06)            (12) %


                                               Three Months Ended                                                                Six Months Ended
                                                    June 30,                              Variance                                   June 30,                             Variance
Volumes (4)                                 2021                 2020             Volumes               %                    2021                2020             Volumes               %
Liquids storage (average monthly
capacity in millions of barrels)
(5)                                          100                 109                    (9)             (8) %                 100                 110                  (10)             (9) %
Natural gas storage (average
monthly working capacity in
billions of cubic feet)                       70                  67                     3               4  %                  69                  65                    4               6  %
NGL fractionation (average volumes
in thousands of barrels per day)             129                 122                     7               6  %                 136                 138                   (2)             (1) %
Facilities segment total volumes
(average monthly volumes in
millions of barrels) (6)                     115                 124                    (9)             (7) %                 115                 125                  (10)             (8) %




**  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 11 to our Condensed
Consolidated Financial Statements for additional discussion of such adjustments.
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(4)Average monthly volumes are calculated as total volumes for the period
divided by the number of months in the period.
(5)Includes volumes (attributable to our interest) from facilities owned by
unconsolidated entities.
(6)Facilities segment total volumes are 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 period and divided
by the number of months in the period.

The following is a discussion of items impacting Facilities segment operating results.

Revenues, Purchases and Related Costs and Volumes. Variances in net revenues and average monthly volumes were primarily driven by the following:



•NGL Operations. Revenues from our NGL operations decreased by $16 million and
$57 million for the three and six months ended June 30, 2021, respectively,
compared to the same periods in 2020 primarily due to lower intersegment
facility fee revenues due to rate decreases at certain of our storage,
fractionation and processing facilities to reflect lower utilization and market
rates (which had an offsetting favorable impact on our Supply and Logistics
segment). The six-month comparative period was further unfavorably impacted by
(i) a benefit in the 2020 comparative period from the receipt of a deficiency
payment of approximately $20 million upon the expiration of a multi-year
contract and (ii) the sale of certain NGL terminals in the second quarter of
2020. Such unfavorable impacts were partially offset for the three- and
six-month comparative periods by more favorable foreign exchange impacts in 2021
of approximately $13 million and $19 million, respectively, and, for the
six-month comparative period, gains at certain of our fractionation facilities
in the first quarter of 2021.

•Crude Oil Storage. Revenues from our crude oil storage operations decreased by
$16 million and $31 million for the three and six months ended June 30, 2021,
respectively, compared to the same periods in 2020 primarily due to the sale of
our Los Angeles Basin terminals in October of 2020.

•Natural Gas Storage. Net revenues increased by $17 million for the six months
ended June 30, 2021 compared to the same period in 2020 primarily due to
increased margins from hub activities in the first quarter of 2021 related to
Winter Storm Uri.

Field Operating Costs. The decrease in field operating costs for the six months
ended June 30, 2021 compared to the same period in 2020 was primarily due to (i)
the sale of our Los Angeles Basin terminals and certain NGL terminals, (ii)
decreased power costs related to derivative activity and (iii) reduced activity
at our rail terminals.

Segment General and Administrative Expenses. The decrease in segment general and
administrative expenses for the three and six months ended June 30, 2021
compared to the same periods in 2020 was primarily due to the impact of 2020
legal costs, partially offset by reduced wage subsidies received by our Canadian
subsidiary in the current period.

Maintenance Capital. The decrease in maintenance capital spending for the three
and six months ended June 30, 2021 compared to the same periods in 2020 was
primarily due to timing changes, the impact of asset sales, the completion of
multi-year reliability improvement programs and application of updated
regulatory guidance, among other factors.

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, (iii) the
relationship between NGL prices and natural gas prices and (iv) 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.

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The following tables set forth our operating results from our Supply and
Logistics segment:

                                                                    Three Months Ended                                                              Six Months Ended
Operating Results (1)                                                    June 30,                              Variance                                 June 30,                            Variance
(in millions, except per barrel data)                              2021                2020              $                 %                     2021              2020               $                 %
Revenues                                                     $    9,623             $ 2,925          $ 6,698               229  %             $ 17,707          $ 10,834          $ 6,873                63  %
Purchases and related costs                                      (9,700)             (2,903)          (6,797)             (234) %              (17,497)          (10,717)          (6,780)              (63) %
Field operating costs                                               (42)                (45)               3                 7  %                  (83)             (103)              20                19  %
Segment general and administrative expenses (2)                     (23)                (21)              (2)              (10) %                  (44)              (44)               -                 -  %

Adjustments: (3)
(Gains)/losses from derivative activities and
inventory valuation adjustments                                     173                  97               76                   **                  (24)              121             (145)                  **
Long-term inventory costing adjustments                             (27)                (51)              24                   **                  (68)               64             (132)                  **
Equity-indexed compensation expense                                   1                   1                -                   **                    2                 2                -                   **
Net (gain)/loss on foreign currency revaluation                      (1)                  -               (1)                  **                   (2)              (13)              11                   **
Significant transaction-related expenses                              1                   -                1                   **                    1                 -                1                   **
Segment Adjusted EBITDA                                      $        5             $     3          $     2                67  %             $     (8)         $    144          $  (152)             (106) %
Maintenance capital                                          $        3             $     8          $    (5)              (63) %             $      6          $     11          $    (5)              (45) %
Segment Adjusted EBITDA per barrel                           $     0.04             $  0.03          $  0.01                33  %             $  (0.03)         $   0.58          $ (0.61)             (105) %



                                                                 Three Months Ended                                                                   Six Months Ended
Average Daily Volumes (4)                                             June 30,                               Variance                                     June 30,                             Variance
(in thousands of barrels per day)                             2021                 2020               Volumes               %                     2021                 2020             Volumes              %
Crude oil lease gathering purchases                          1,352                1,077                    275              26  %                1,264                1,198                   66              6  %
NGL sales                                                      112                   94                     18              19  %                  165                  156                    9              6  %
Supply and Logistics segment total volumes                   1,464                1,171                    293              25  %                1,429                1,354                   75              6  %




**  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 11 to our Condensed
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 WTI benchmark price of crude
oil (in dollars per barrel):

                                             NYMEX WTI
                                          Crude Oil Price
                                           Low            High
Three Months Ended June 30, 2021    $      59            $ 74
Three Months Ended June 30, 2020    $     (38)           $ 40

Six Months Ended June 30, 2021      $      48            $ 74
Six Months Ended June 30, 2020      $     (38)           $ 63



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
and inventory valuation and costing adjustments.

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.

Segment Adjusted EBITDA and Volumes. The following summarizes the significant items impacting our Supply and Logistics Segment Adjusted EBITDA:



•Crude Oil Operations. Net revenues from our crude oil operations were slightly
lower in the three-month period as contango margins were better in the 2020
period; however, this was largely offset by lease gathering margins and certain
differentials that were more favorable in the 2021 period. For the six months
ended June 30, 2021 compared to the same period in 2020, net revenues from our
crude oil operations were lower due to less favorable market conditions.

•NGL Operations. Net revenues from our NGL operations were slightly higher for
the three months ended June 30, 2021 compared to the same period in 2020 due to
a decrease in intersegment fees. Net revenues from our NGL operations decreased
for the six months ended June 30, 2021 compared to the same period in 2020,
primarily due to lower realized margins on our NGL sales activities, partially
offset by a decrease in intersegment fees. The intersegment fees were reduced in
the 2021 periods to reflect lower utilization and market rates, and had an
offsetting unfavorable impact on our Facilities and Transportation segments.

•Impact from Certain Derivative Activities and 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), gains and
losses on derivatives that are related to investing activities (such as the
purchase of linefill) and inventory valuation adjustments, as applicable. See
Note 8 to our Condensed 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 the realization of foreign exchange gains and
losses on the settlement of foreign currency transactions as well as the
revaluation of monetary assets and liabilities denominated in a foreign currency
within our Canadian operations. 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.

•Field Operating Costs. The decrease in field operating costs for the six months
ended June 30, 2021 compared to the same period in 2020 was primarily due to
lower trucking costs due to more supply connected to pipelines resulting in
lower trucking activity in the 2021 period.

Other Income and Expenses

Depreciation and Amortization

The increase in depreciation and amortization expense for the three and six months ended June 30, 2021 compared to the same periods in 2020 was largely driven by a reduction in the useful lives of certain assets. See Note 2 to our Condensed Consolidated Financial Statements for additional information.

Gains/(Losses) on Asset Sales and Asset Impairments, Net



The net loss on asset sales and asset impairments for the three and six months
ended June 30, 2021, was primarily driven by an approximate $475 million
non-cash impairment charge related to the write-down of our Pine Prairie and
Southern Pines natural gas storage facilities upon classification as held for
sale during the second quarter, which were subsequently sold on August 2, 2021,
partially offset by a gain of $106 million related to the Asset Exchange
transaction. See Note 12 to our Condensed Consolidated Financial Statements for
additional information. The net loss on asset sales and asset impairments for
the six months ended June 30, 2020 was largely driven by (i) non-cash impairment
losses of approximately $446 million related to the write-down of certain
pipeline and other long-lived assets due to macroeconomic and geopolitical
conditions including the collapse of oil prices driven by both the decrease in
demand caused by the COVID-19 pandemic and excess supply, as well as changing
market conditions and expected lower crude oil production in certain regions,
and (ii) approximately $167 million of impairment losses recognized on assets
upon classification as held for sale during the quarter, which were subsequently
sold.

Goodwill Impairment Losses

During the first quarter of 2020, we recognized a goodwill impairment charge of $2.515 billion, representing the entire balance of goodwill.

Gain on/(Impairment of) Investments in Unconsolidated Entities, Net



During the three and six months ended June 30, 2020, we recognized losses of $69
million and $112 million, respectively, related to the write-down of certain of
our investments in unconsolidated entities. Additionally, during the six months
ended June 30, 2020, we recognized a gain of $21 million related to our sale of
a 10% interest in Saddlehorn Pipeline Company, LLC.

Other Income/(Expense), Net



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

                                                                     Three Months Ended                  Six Months Ended
                                                                          June 30,                           June 30,
                                                                    2021              2020             2021             2020

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

$       77          $   (9)         $      9          $   17
Net gain/(loss) on foreign currency revaluation (2)                      6              23                13             (36)
Other                                                                    1               4                 1               6
                                                                $       84          $   18          $     23          $  (13)




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(1)See Note 8 to our Condensed Consolidated Financial Statements for additional
information.
(2)The activity during the periods presented was primarily related to the impact
from the change in the United States dollar to Canadian dollar exchange rate on
the portion of our intercompany net investment that is not long-term in nature.

Income Tax (Expense)/Benefit



The income tax expense for the six months ended June 30, 2021 compared to the
income tax benefit for the six months ended June 30, 2020 was primarily due to
the impact of higher earnings at PAA on income attributable to PAGP in the first
quarter of 2021 compared to the first quarter of 2020, which was partially
offset by the impact of lower earnings at PAA on income attributable to PAGP for
the second quarter of 2021 compared to the second quarter of 2020.

Liquidity and Capital Resources

General



On a consolidated basis, our primary sources of liquidity are (i) cash flow from
operating activities and (ii) borrowings under PAA's credit facilities or the
PAA commercial paper program. In addition, we may supplement these primary
sources of liquidity with proceeds from our divestiture program and in the past
we have utilized funds received from sales of equity and debt securities. 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) investment and maintenance capital activities,
(iii) acquisitions of assets or businesses, (iv) repayment of principal on
long-term debt and (v) distributions to our Class A shareholders and
noncontrolling interests. In addition, we may use cash for repurchases of common
equity. We generally expect to fund our short-term cash requirements through
cash flow generated from operating activities and/or borrowings under the PAA
commercial paper program or PAA's credit facilities. In addition, we generally
expect to fund our long-term needs, such as those resulting from investment
capital activities or acquisitions and refinancing 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 June 30, 2021, although we had a working capital deficit of $485 million,
we had approximately $2.6 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
                                                                                   June 30, 2021
Availability under PAA senior unsecured revolving credit facility (1) (2)        $        1,532
Availability under PAA senior secured hedged inventory facility (1) (2)                   1,387
Amounts outstanding under PAA commercial paper program                                     (388)
Subtotal                                                                                  2,531
Cash and cash equivalents                                                                    26
Total                                                                            $        2,557




(1)Represents availability prior to giving effect to borrowings outstanding
under the PAA commercial paper program, which reduce available capacity under
the facilities.
(2)Available capacity under the PAA senior unsecured revolving credit facility
and the PAA senior secured hedged inventory facility was reduced by outstanding
letters of credit of $68 million and $13 million, respectively.

Usage of PAA's credit facilities, and, in turn, its commercial paper program, is
subject to ongoing compliance with covenants. The credit agreements for PAA's
revolving credit facilities (which impact PAA's ability to access its commercial
paper program because they provide the financial backstop that supports its
short-term credit ratings) and its term loans and the indentures governing its
senior notes contain cross-default provisions. A default under PAA's credit
agreements or indentures would permit the lenders to accelerate the maturity of
the outstanding debt. Additionally, lack of compliance with the provisions in
PAA's credit agreements may restrict its ability to make distributions of
available cash. PAA was in compliance with the covenants contained in its credit
agreements and indentures as of June 30, 2021.

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We believe that we have, and will continue to have, the ability to access the
PAA 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 liquid assets, cash flow from operating activities and
borrowing capacity under the 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, including extended disruptions in the
financial markets and/or energy price volatility resulting from current
macroeconomic and geopolitical conditions associated with the COVID-19 pandemic
and/or actions by Organization of Petroleum Exporting Countries ("OPEC"). A
prolonged material decrease in our cash flows would likely produce an adverse
effect on our borrowing capacity and cost of borrowing. Our borrowing capacity
and borrowing costs are also impacted by PAA's credit rating. See Item 1A. "Risk
Factors" included in our 2020 Annual Report on Form 10-K for further discussion
regarding risks that may impact our liquidity and capital resources.

Cash Flow from Operating Activities

For a comprehensive discussion of the primary drivers of cash flow from operating activities, including the impact of varying market conditions and the timing of settlement of our derivatives, see Item 7. "Liquidity and Capital Resources-Cash Flow from Operating Activities" included in our 2020 Annual Report on Form 10-K.



Net cash provided by operating activities for the first six months of 2021 and
2020 was $1.023 billion and $972 million, respectively, and primarily resulted
from earnings from our operations. Additionally, during the six months ended
June 30, 2020, we increased the volume of our crude oil inventory to be stored
during the contango market; however, this increase was offset by lower prices
for our inventory stored at the end of the current period compared to the end of
2019.

Investing Activities

Capital Expenditures

In addition to our operating needs, we also use cash for our investment capital
projects, maintenance capital activities and acquisition activities. We fund
these expenditures with cash generated by operating activities, financing
activities and/or proceeds from our divestiture program. In the near term, we do
not plan to issue common equity to fund such expenditures. The following table
summarizes our investment, maintenance and acquisition capital expenditures (in
millions):

                                   Six Months Ended
                                       June 30,
                                   2021           2020
Investment capital (1) (2)    $    142          $   654
Maintenance capital (1)             73              104
Acquisition capital (3)             32              308
                              $    247          $ 1,066




(1)Capital expenditures made to expand the existing operating and/or earnings
capacity of our assets are classified as "Investment 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."
(2)Includes contributions to unconsolidated entities, accounted for under the
equity method of accounting, related to investment capital projects by such
entities.
(3)Acquisition capital for 2021 represents the cash consideration paid as part
of the Asset Exchange transaction. See Note 12 to our Condensed Consolidated
Financial Statements for additional information. Acquisition capital for 2020
primarily includes Felix Midstream LLC, a crude oil gathering system located in
the Delaware Basin.

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2021 Investment and Maintenance Capital. Total projected investment capital for
the year ended December 31, 2021 is $325 million, a majority of which will be
invested in our fee-based Transportation and Facilities segments. Additionally,
maintenance capital for the full year of 2021 is projected to be $180 million.
We expect to fund our 2021 investment and maintenance capital expenditures with
retained cash flow and proceeds from assets sold as part of our divestiture
program.

Divestitures



We continue to 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 during the first six months of 2021 and
2020 from sales of assets, which were previously reported in our Transportation
and Facilities segments (in millions):

                                       Six Months Ended
                                           June 30,
                                       2021            2020
Proceeds from divestitures       $     22             $ 245

Proceeds from divestitures were used to reduce debt levels and fund our investment capital projects.



On August 2, 2021, we closed the sale of our Pine Prairie and Southern Pines
natural gas storage facilities for $850 million, subject to certain adjustments.
See Note 12 to our Condensed Consolidated Financial Statements for additional
information.

Ongoing Activities Related to Strategic Transactions



We are continuously engaged in the evaluation of potential transactions that
support our current business strategy. While in the past such transactions have
included acquisitions and large capital projects, consistent with our current
strategic focus on capital discipline, leverage reduction, portfolio
optimization and free cash flow generation, we are currently primarily focused
on evaluating whether we should (i) sell assets that we regard as non-core or
that we believe might be a better fit with the business and/or assets of a
third-party buyer or (ii) sell partial interests in assets to strategic joint
venture partners, in each case to optimize our asset portfolio and strengthen
our balance sheet and leverage metrics. With respect to a potential divestiture,
we may also conduct an auction process or may negotiate a transaction with one
or a limited number of potential buyers. Such transactions could involve assets
that, if sold or put into a joint venture or joint ownership arrangement, could
have a material effect on our financial condition and results of operations.

We typically do not announce a transaction until after we have executed a
definitive agreement. However, in certain cases in order to protect our business
interests or for other reasons, we may defer public announcement of a
transaction until closing or a later date. Past experience has demonstrated that
discussions and negotiations regarding a potential transaction can advance or
terminate in a short period of time. Moreover, the closing of any transaction
for which we have entered into a definitive agreement may be subject to
customary and other closing conditions, which may not ultimately be satisfied or
waived. Accordingly, we can give no assurance that our current or future efforts
with respect to any such transactions will be successful, and we can provide no
assurance that our financial expectations with respect to such transactions will
ultimately be realized. See Item 1A. "Risk Factors-Risks Related to PAA's
Business-Divestitures, joint ventures, joint ownership arrangements and
acquisitions involve risks that may adversely affect our business" included in
our 2020 Annual Report on Form 10-K.

Financing Activities

Our financing activities primarily relate to funding investment 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.


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Borrowings and Repayments Under Credit Arrangements

During the six months ended June 30, 2021, we had net repayments on the PAA
credit facilities and commercial paper program of $326 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 six months ended June 30, 2020, we had net repayments on the PAA
credit facilities and commercial paper program of $418 million. The net
repayments resulted primarily from cash flow from operating activities, proceeds
from asset sales and the issuance of $750 million, 3.80% senior notes in June
2020, which offset borrowings during the period related to funding needs for
capital investments, inventory purchases and other general partnership purposes.

In connection with the sale of our Pine Prairie and Southern Pines natural gas
storage facilities on August 2, 2021, we repaid PAA's two GO Zone term loans
totaling $200 million. See Note 12 for additional information regarding the sale
of our natural gas storage facilities.

Common Equity Repurchase Program



PAA repurchased 5,290,592 common units under the Program through open market
purchases that settled during the six months ended June 30, 2021. The total
purchase price of these repurchases was $53 million, including commissions and
fees. At June 30, 2021, the remaining available capacity under the Program was
$397 million.

Registration Statements

PAGP Registration Statements. We have filed with the SEC a shelf registration
statement that, subject to effectiveness at the time of use, allows us to issue,
in the aggregate, up to a specified amount of equity securities (the "PAGP
Traditional Shelf"), under which we had approximately $939 million of unsold
securities available at June 30, 2021. We also have access to a shelf
registration statement (the "PAGP WKSI Shelf"), which provides us with the
ability to offer and sell an unlimited amount of equity securities, subject to
market conditions and capital needs. We did not conduct any offerings under the
PAGP Traditional Shelf or the PAGP WKSI Shelf during the six months ended June
30, 2021.

PAA Registration Statements. PAA periodically accesses the capital markets for
both equity and debt financing. PAA has filed with the SEC a universal shelf
registration statement that, subject to effectiveness at the time of use, allows
PAA to issue, in the aggregate, up to a specified amount of debt or equity
securities (the "PAA Traditional Shelf"), under which PAA had approximately $1.1
billion of unsold securities available at June 30, 2021. PAA also has access to
a universal shelf registration statement (the "PAA WKSI Shelf"), which provides
it with the ability to offer and sell an unlimited amount of debt and equity
securities, subject to market conditions and capital needs. PAA did not conduct
any offerings under the PAA Traditional Shelf or the PAA WKSI Shelf during the
six months ended June 30, 2021.

Distributions to Our Class A Shareholders



We distribute all of our available cash within 55 days following the end of each
quarter to Class A shareholders of record. 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 legal
or contractual obligations and funding of future distributions to our
shareholders. See Item 5. "Market for Registrant's Shares, Related Shareholder
Matters and Issuer Purchases of Equity Securities-Cash Distribution Policy"
included in our 2020 Annual Report on Form 10-K for additional discussion
regarding distributions.

See Note 7 to our Condensed Consolidated Financial Statements for details of distributions paid during or pertaining to the first six months of 2021.


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Distributions to Noncontrolling Interests

Distributions to noncontrolling interests represent amounts paid on interests in
consolidated entities that are not owned by us. As of June 30, 2021,
noncontrolling interests in our subsidiaries consisted of (i) limited partner
interests in PAA including a 69% interest in PAA's common units and PAA's Series
A preferred units combined and 100% of PAA's Series B preferred units, (ii) an
approximate 21% limited partner interest in AAP and (iii) a 33% interest in Red
River LLC. See Note 7 to our Condensed Consolidated Financial Statements for
details of distributions to noncontrolling interests paid during or pertaining
to the first six months of 2021.

Contingencies

For a discussion of contingencies that may impact us, see Note 10 to our Condensed 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 13 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 June 30, 2021 (in millions):



                                   Remainder of                                                                                   2026 and
                                       2021               2022              2023              2024              2025             Thereafter             Total
Long-term debt and related
interest payments (1)              $      402          $  1,137          $  1,461          $  1,083          $  1,300          $      8,337          $  13,720
Leases (2)                                 54               102                78                64                49                   299                646
Other obligations (3)                     197               408               329               282               269                   935              2,420
Subtotal                                  653             1,647             1,868             1,429             1,618                 9,571             16,786
Crude oil, NGL and other purchases
(4)                                    11,039            19,545            18,494            17,483            14,182                54,615            135,358
Total                              $   11,692          $ 21,192          $ 20,362          $ 18,912          $ 15,800          $     64,186          $ 152,144




(1)Includes debt service payments, interest payments due on PAA's senior notes
and the commitment fee on assumed available capacity under the PAA credit
facilities, as well as long-term borrowings under the PAA credit agreements and
the PAA commercial paper program, if any. Although there may be short-term
borrowings under the PAA credit agreements and the PAA 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 PAA credit agreements or the PAA commercial paper program) in the amounts
above. For additional information regarding PAA's debt obligations, see Note 6
to our Condensed Consolidated Financial Statements.
(2)Includes both operating and finance leases as defined by FASB guidance.
Leases are primarily for (i) railcars, (ii) land, (iii) office space, (iv)
storage tanks, (v) tractor trailers and (vi) vehicles. See Note 14 to our
Consolidated Financial Statements included in Part IV of our 2020 Annual Report
on Form 10-K for additional information.
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(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 investment capital projects,
including projected contributions for our share of the capital spending of our
equity method investments. The storage, processing and transportation agreements
include approximately $1.9 billion associated with agreements to store crude oil
at facilities and transport crude oil or utilize capacity on pipelines owned by
equity method investees at posted tariff rates or prices that we believe
approximate market. 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 June 2021. 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. Additionally, we issue letters of credit to support insurance programs,
derivative transactions, including hedging-related margin obligations, and
construction activities. At June 30, 2021 and December 31, 2020, we had
outstanding letters of credit of approximately $81 million and $129 million,
respectively.

Off-Balance Sheet Arrangements

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

Recent Accounting Pronouncements

See Note 2 to our Condensed Consolidated Financial Statements.

Critical Accounting Policies and Estimates



For a discussion regarding our critical accounting policies and estimates, see
"Critical Accounting Policies and Estimates" under Item 7 of our 2020 Annual
Report on Form 10-K.

Change in Accounting Estimate



In early 2021, we conducted a review to assess the useful lives of our property
and equipment. Based on this review, we modified the useful lives of certain of
our Pipelines and related facilities and Storage, terminal and rail facilities
to useful lives of 10 to 50 years from useful lives of 10 to 70 years to reflect
current expectations given our future operating and commercial outlook. This
change in accounting estimate was effective January 1, 2021. Based on the net
carrying amount of this property and equipment as of January 1, 2021, we
currently estimate that these useful life reductions will prospectively increase
annual depreciation expense by approximately $72 million.

                           FORWARD-LOOKING STATEMENTS

All statements included in this report, other than statements of historical
fact, are forward-looking statements, including but not limited to statements
incorporating the words "anticipate," "believe," "estimate," "expect," "plan,"
"intend" and "forecast," as well as similar expressions and statements regarding
our business strategy, plans and objectives for future operations. The absence
of such words, expressions or statements, however, does not mean that the
statements are not forward-looking. Any such forward-looking statements reflect
our current views with respect to future events, based on what we believe to be
reasonable assumptions. Certain factors could cause actual results or outcomes
to differ materially from the results or outcomes anticipated in the
forward-looking statements. The most important of these factors include, but are
not limited to:

•our ability to pay distributions to our Class A shareholders;
•our expected receipt of, and amounts of, distributions from Plains AAP, L.P.;
•declines in global crude oil demand and crude oil prices (whether due to the
COVID-19 pandemic, future pandemics or other factors) that correspondingly lead
to a significant reduction of North American crude oil,
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natural gas liquids ("NGL") and natural gas production (whether due to reduced
producer cash flow to fund drilling activities or the inability of producers to
access capital, or both, the unavailability of pipeline and/or storage capacity,
the shutting-in of production by producers, government-mandated pro-ration
orders, or other factors), which in turn could result in significant declines in
the actual or expected volume of crude oil and NGL shipped, processed,
purchased, stored, fractionated and/or gathered at or through the use of our
assets and/or the reduction of commercial opportunities that might otherwise be
available to us;
•the effects of competition and capacity overbuild in areas where we operate,
including contract renewal risk and the risk of loss of business to other
midstream operators who are willing or under pressure to aggressively reduce
transportation rates in order to capture or preserve customers;
•negative societal sentiment regarding the hydrocarbon energy industry and the
continued development and consumption of hydrocarbons, which could influence
consumer preferences and governmental or regulatory actions that adversely
impact our business;
•unanticipated changes in crude oil and NGL market structure, grade
differentials and volatility (or lack thereof);
•environmental liabilities or events that are not covered by an indemnity,
insurance or existing reserves;
•fluctuations in refinery capacity in areas supplied by our mainlines and other
factors affecting demand for various grades of crude oil, NGL and natural gas
and resulting changes in pricing conditions or transportation throughput
requirements;
•the availability of, and our ability to consummate, divestitures, joint
ventures, acquisitions or other strategic opportunities;
•maintenance of PAA's credit rating and ability to receive open credit from our
suppliers and trade counterparties;
•the occurrence of a natural disaster, catastrophe, terrorist attack (including
eco-terrorist attacks) or other event that materially impacts our operations,
including cyber or other attacks on our electronic and computer systems;
•weather interference with business operations or project construction,
including the impact of extreme weather events or conditions;
•the refusal or inability of our customers or counterparties to perform their
obligations under their contracts with us (including commercial contracts, asset
sale agreements and other agreements), whether justified or not and whether due
to financial constraints (such as reduced creditworthiness, liquidity issues or
insolvency), market constraints, legal constraints (including governmental
orders or guidance), the exercise of contractual or common law rights that
allegedly excuse their performance (such as force majeure or similar claims) or
other factors;
•our inability to perform our obligations under our contracts, whether due to
non-performance by third parties, including our customers or counterparties,
market constraints, third-party constraints, legal constraints (including
governmental orders or guidance), or other factors;
•the incurrence of costs and expenses related to unexpected or unplanned capital
expenditures, third-party claims or other factors;
•the successful operation of joint ventures and joint operating arrangements we
enter into from time to time, whether relating to assets operated by us or by
third parties, and the successful integration and future performance of acquired
assets or businesses;
•failure to implement or capitalize, or delays in implementing or capitalizing,
on investment capital projects, whether due to permitting delays, permitting
withdrawals or other factors;
•disruptions to futures markets for crude oil, NGL and other petroleum products,
which may impair our ability to execute our commercial or hedging strategies;
•shortages or cost increases of supplies, materials or labor;
•the impact of current and future laws, rulings, governmental regulations, trade
policies, accounting standards and statements, and related interpretations,
including legislation or regulatory initiatives that prohibit, restrict or
regulate hydraulic fracturing or that prohibit the development of oil and gas
resources and the related infrastructure on lands dedicated to or served by our
pipelines;
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•tightened capital markets or other factors that increase our cost of capital or
limit our ability to obtain debt or equity financing on satisfactory terms to
fund additional acquisitions, investment capital projects, working capital
requirements and the repayment or refinancing of indebtedness;
•inability of producers, who have made commitments to our pipelines, to access
capital to fund their drilling and completion activities;
•general economic, market or business conditions in the United States and
elsewhere (including the potential for a recession or significant slowdown in
economic activity levels and the timing, pace and extent of economic recovery)
that impact demand for crude oil, drilling and production activities and
therefore the demand for the midstream services we provide and commercial
opportunities available to us;
•the amplification of other risks caused by volatile financial markets, capital
constraints, liquidity concerns and inflation;
•the use or availability of third-party assets upon which our operations depend
and over which we have little or no control;
•the currency exchange rate of the Canadian dollar to the United States dollar;
•inability to recognize current revenue attributable to deficiency payments
received from customers who fail to ship or move more than minimum contracted
volumes until the related credits expire or are used;
•significant under-utilization of our assets and facilities;
•increased costs, or lack of availability, of insurance;
•the effectiveness of our risk management activities;
•fluctuations in the debt and equity markets, including the price of PAA's units
at the time of vesting under its long-term incentive plans;
•risks related to the development and operation of our assets; and
•other factors and uncertainties inherent in the transportation, storage,
terminalling and marketing of crude oil, as well as in the storage of natural
gas and the processing, transportation, fractionation, storage and marketing of
natural gas liquids.

Other factors described herein, as well as factors that are unknown or
unpredictable, could also have a material adverse effect on future results.
Please read "Risk Factors" discussed in Item 1A of our 2020 Annual Report on
Form 10-K. Except as required by applicable securities laws, we do not intend to
update these forward-looking statements and information.

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