10-Q 1 a15-7210_110q.htm 10-Q

Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2015

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number: 1-14569

PLAINS ALL AMERICAN PIPELINE, L.P.

(Exact name of registrant as specified in its charter)

Delaware |  | 76-0582150
(State or other jurisdiction of |  | (I.R.S. Employer
incorporation or organization) |  | Identification No.)

333 Clay Street, Suite 1600, Houston, Texas |  | 77002
(Address of principal executive offices) |  | (Zip Code)

(713) 646-4100

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. x Yes o No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). x Yes o No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer x |  | Accelerated filer o
Non-accelerated filer o |  | Smaller reporting company o
(Do not check if a smaller reporting company) |  |

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). o Yes x No

As of May 1, 2015, there were 397,241,697 Common Units outstanding.

Table of Contents

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

TABLE OF CONTENTS

|  | Page |
PART I. FINANCIAL INFORMATION |  |  |
Item 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS: |  |  |
Condensed Consolidated Balance Sheets: As of March 31, 2015 and December 31, 2014 |  | 3 |
Condensed Consolidated Statements of Operations: For the three months ended March 31, 2015 and 2014 |  | 4 |
Condensed Consolidated Statements of Comprehensive Income / (Loss): For the three months ended March 31, 2015 and 2014 |  | 5 |
Condensed Consolidated Statements of Changes in Accumulated Other Comprehensive Income / (Loss): For the three months ended March 31, 2015 and 2014 |  | 5 |
Condensed Consolidated Statements of Cash Flows: For the three months ended March 31, 2015 and 2014 |  | 6 |
Condensed Consolidated Statements of Changes in Partners’ Capital: For the three months ended March 31, 2015 and 2014 |  | 7 |
Notes to the Condensed Consolidated Financial Statements: |  |  |
1. Organization and Basis of Consolidation and Presentation |  | 8 |
2. Recent Accounting Pronouncements |  | 9 |
3. Net Income Per Limited Partner Unit |  | 10 |
4. Accounts Receivable |  | 11 |
5. Inventory, Linefill and Base Gas and Long-term Inventory |  | 12 |
6. Debt |  | 13 |
7. Partners’ Capital and Distributions |  | 14 |
8. Derivatives and Risk Management Activities |  | 14 |
9. Equity-Indexed Compensation Plans |  | 21 |
10. Commitments and Contingencies |  | 22 |
11. Operating Segments |  | 23 |
12. Related Party Transactions |  | 24 |
Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS |  | 25 |
Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK |  | 41 |
Item 4. CONTROLS AND PROCEDURES |  | 42 |
PART II. OTHER INFORMATION |  |  |
Item 1. LEGAL PROCEEDINGS |  | 43 |
Item 1A. RISK FACTORS |  | 43 |
Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS |  | 43 |
Item 3. DEFAULTS UPON SENIOR SECURITIES |  | 43 |
Item 4. MINE SAFETY DISCLOSURES |  | 43 |
Item 5. OTHER INFORMATION |  | 43 |
Item 6. EXHIBITS |  | 43 |
SIGNATURES |  | 44 |

2

Table of Contents

PART I. FINANCIAL INFORMATION

Item 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in millions, except unit data)

|  | March 31, |  | December 31, |
|  | 2015 |  | 2014 |
|  | (unaudited) |
ASSETS |  |  |  |  |
CURRENT ASSETS |  |  |  |  |
Cash and cash equivalents |  | $ | 458 |  | $ | 403 |
Trade accounts receivable and other receivables, net |  | 1,817 |  | 2,615 |
Inventory |  | 929 |  | 891 |
Other current assets |  | 249 |  | 270 |
Total current assets |  | 3,453 |  | 4,179 |
PROPERTY AND EQUIPMENT |  | 14,436 |  | 14,178 |
Accumulated depreciation |  | (1,952 | ) | (1,906 | )
Property and equipment, net |  | 12,484 |  | 12,272 |
OTHER ASSETS |  |  |  |  |
Goodwill |  | 2,435 |  | 2,465 |
Investments in unconsolidated entities |  | 1,784 |  | 1,735 |
Linefill and base gas |  | 960 |  | 930 |
Long-term inventory |  | 149 |  | 186 |
Other long-term assets, net |  | 459 |  | 489 |
Total assets |  | $ | 21,724 |  | $ | 22,256 |
LIABILITIES AND PARTNERS’ CAPITAL |  |  |  |  |
CURRENT LIABILITIES |  |  |  |  |
Accounts payable and accrued liabilities |  | $ | 2,491 |  | $ | 2,986 |
Short-term debt |  | 553 |  | 1,287 |
Other current liabilities |  | 487 |  | 482 |
Total current liabilities |  | 3,531 |  | 4,755 |
LONG-TERM LIABILITIES |  |  |  |  |
Senior notes, net of unamortized discount of $17 and $18, respectively |  | 8,758 |  | 8,757 |
Other long-term debt |  | 5 |  | 5 |
Other long-term liabilities and deferred credits |  | 594 |  | 548 |
Total long-term liabilities |  | 9,357 |  | 9,310 |
COMMITMENTS AND CONTINGENCIES (NOTE 10) |  |  |  |  |
PARTNERS’ CAPITAL |  |  |  |  |
Common unitholders (397,241,697 and 375,107,793 units outstanding, respectively) |  | 8,413 |  | 7,793 |
General partner |  | 365 |  | 340 |
Total partners’ capital excluding noncontrolling interests |  | 8,778 |  | 8,133 |
Noncontrolling interests |  | 58 |  | 58 |
Total partners’ capital |  | 8,836 |  | 8,191 |
Total liabilities and partners’ capital |  | $ | 21,724 |  | $ | 22,256 |

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

Table of Contents

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in millions, except per unit data)

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
|  | (unaudited) |
REVENUES |  |  |  |  |
Supply and Logistics segment revenues |  | $ | 5,632 |  | $ | 11,346 |
Transportation segment revenues |  | 185 |  | 181 |
Facilities segment revenues |  | 125 |  | 157 |
Total revenues |  | 5,942 |  | 11,684 |
COSTS AND EXPENSES |  |  |  |  |
Purchases and related costs |  | 5,042 |  | 10,670 |
Field operating costs |  | 346 |  | 336 |
General and administrative expenses |  | 78 |  | 89 |
Depreciation and amortization |  | 107 |  | 96 |
Total costs and expenses |  | 5,573 |  | 11,191 |
OPERATING INCOME |  | 369 |  | 493 |
OTHER INCOME/(EXPENSE) |  |  |  |  |
Equity earnings in unconsolidated entities |  | 37 |  | 20 |
Interest expense (net of capitalized interest of $14 and $11, respectively) |  | (102 | ) | (78 | )
Other expense, net |  | (4 | ) | (2 | )
INCOME BEFORE TAX |  | 300 |  | 433 |
Current income tax expense |  | (42 | ) | (36 | )
Deferred income tax benefit/(expense) |  | 26 |  | (12 | )
NET INCOME |  | 284 |  | 385 |
Net income attributable to noncontrolling interests |  | (1 | ) | (1 | )
NET INCOME ATTRIBUTABLE TO PAA |  | $ | 283 |  | $ | 384 |
NET INCOME ATTRIBUTABLE TO PAA: |  |  |  |  |
LIMITED PARTNERS |  | $ | 138 |  | $ | 268 |
GENERAL PARTNER |  | $ | 145 |  | $ | 116 |
BASIC NET INCOME PER LIMITED PARTNER UNIT |  | $ | 0.36 |  | $ | 0.74 |
DILUTED NET INCOME PER LIMITED PARTNER UNIT |  | $ | 0.35 |  | $ | 0.73 |
BASIC WEIGHTED AVERAGE LIMITED PARTNER UNITS OUTSTANDING |  | 383 |  | 360 |
DILUTED WEIGHTED AVERAGE LIMITED PARTNER UNITS OUTSTANDING |  | 385 |  | 363 |

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

Table of Contents

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME / (LOSS)

(in millions)

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
|  | (unaudited) |
Net income |  | $ | 284 |  | $ | 385 |
Other comprehensive loss |  | (376 | ) | (136 | )
Comprehensive income/(loss) |  | (92 | ) | 249 |
Comprehensive income attributable to noncontrolling interests |  | (1 | ) | (1 | )
Comprehensive income/(loss) attributable to PAA |  | $ | (93 | ) | $ | 248 |

The accompanying notes are an integral part of these condensed consolidated financial statements.

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN

ACCUMULATED OTHER COMPREHENSIVE INCOME / (LOSS)

(in millions)

|  | Derivative |  | Translation |  |  |
|  | Instruments |  | Adjustments |  | Total |
|  | (unaudited) |
Balance at December 31, 2014 |  | $ | (159 | ) | $ | (308 | ) | $ | (467 | )
Reclassification adjustments |  | (6 | ) | — |  | (6 | )
Deferred loss on cash flow hedges, net of tax |  | (72 | ) | — |  | (72 | )
Currency translation adjustments |  | — |  | (298 | ) | (298 | )
Total period activity |  | (78 | ) | (298 | ) | (376 | )
Balance at March 31, 2015 |  | $ | (237 | ) | $ | (606 | ) | $ | (843 | )

|  | Derivative |  | Translation |  |  |
|  | Instruments |  | Adjustments |  | Total |
|  | (unaudited) |
Balance at December 31, 2013 |  | $ | (77 | ) | $ | (20 | ) | $ | (97 | )
Reclassification adjustments |  | 20 |  | — |  | 20 |
Deferred loss on cash flow hedges, net of tax |  | (32 | ) | — |  | (32 | )
Currency translation adjustments |  | — |  | (124 | ) | (124 | )
Total period activity |  | (12 | ) | (124 | ) | (136 | )
Balance at March 31, 2014 |  | $ | (89 | ) | $ | (144 | ) | $ | (233 | )

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

Table of Contents

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in millions)

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
|  | (unaudited) |
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |  |  |
Net income |  | $ | 284 |  | $ | 385 |
Reconciliation of net income to net cash provided by operating activities: |  |  |  |  |
Depreciation and amortization |  | 107 |  | 96 |
Equity-indexed compensation expense |  | 19 |  | 34 |
Inventory valuation adjustments |  | 24 |  | 37 |
Deferred income tax (benefit)/expense |  | (26 | ) | 12 |
(Gain)/loss on foreign currency revaluation |  | (27 | ) | 5 |
Equity earnings in unconsolidated entities |  | (37 | ) | (20 | )
Distributions from unconsolidated entities |  | 54 |  | 25 |
Other |  | (9 | ) | (6 | )
Changes in assets and liabilities, net of acquisitions |  | 343 |  | 254 |
Net cash provided by operating activities |  | 732 |  | 822 |
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |  |  |
Cash paid in connection with acquisitions, net of cash acquired |  | (64 | ) | — |
Additions to property, equipment and other |  | (441 | ) | (468 | )
Investment in unconsolidated entities |  | (65 | ) | (26 | )
Cash received for sales of linefill and base gas |  | — |  | 11 |
Cash paid for purchases of linefill and base gas |  | (96 | ) | (44 | )
Proceeds from sales of assets |  | 1 |  | 2 |
Other investing activities |  | (1 | ) | 1 |
Net cash used in investing activities |  | (666 | ) | (524 | )
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |  |  |
Net repayments under commercial paper program (Note 6) |  | (734 | ) | (128 | )
Net proceeds from the issuance of common units (Note 7) |  | 1,099 |  | 148 |
Contributions from general partner |  | 22 |  | 3 |
Distributions paid to common unitholders (Note 7) |  | (254 | ) | (221 | )
Distributions paid to general partner (Note 7) |  | (136 | ) | (107 | )
Distributions paid to noncontrolling interests |  | (1 | ) | (1 | )
Other financing activities |  | (2 | ) | (1 | )
Net cash used in financing activities |  | (6 | ) | (307 | )
Effect of translation adjustment on cash |  | (5 | ) | (2 | )
Net increase/(decrease) in cash and cash equivalents |  | 55 |  | (11 | )
Cash and cash equivalents, beginning of period |  | 403 |  | 41 |
Cash and cash equivalents, end of period |  | $ | 458 |  | $ | 30 |
Cash paid for: |  |  |  |  |
Interest, net of amounts capitalized |  | $ | 74 |  | $ | 78 |
Income taxes, net of amounts refunded |  | $ | 11 |  | $ | 66 |

The accompanying notes are an integral part of these condensed consolidated financial statements.

6

Table of Contents

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS’ CAPITAL

(in millions)

|  |  |  |  |  |  |  | Partners’ Capital |  |  |  |  |
|  |  |  |  |  |  |  | Excluding |  |  |  | Total |
|  | Common Units |  | General |  | Noncontrolling |  | Noncontrolling |  | Partners’ |
|  | Units |  | Amount |  | Partner |  | Interests |  | Interests |  | Capital |
|  | (unaudited) |
Balance at December 31, 2014 |  | 375.1 |  | $ | 7,793 |  | $ | 340 |  | $ | 8,133 |  | $ | 58 |  | $ | 8,191 |
Net income |  | — |  | 138 |  | 145 |  | 283 |  | 1 |  | 284 |
Distributions |  | — |  | (254 | ) | (136 | ) | (390 | ) | (1 | ) | (391 | )
Issuance of common units |  | 22.1 |  | 1,099 |  | 22 |  | 1,121 |  | — |  | 1,121 |
Equity-indexed compensation expense |  | — |  | 8 |  | 1 |  | 9 |  | — |  | 9 |
Distribution equivalent right payments |  | — |  | (2 | ) | — |  | (2 | ) | — |  | (2 | )
Other comprehensive loss |  | — |  | (369 | ) | (7 | ) | (376 | ) | — |  | (376 | )
Balance at March 31, 2015 |  | 397.2 |  | $ | 8,413 |  | $ | 365 |  | $ | 8,778 |  | $ | 58 |  | $ | 8,836 |

|  |  |  |  |  |  |  | Partners’ Capital |  |  |  |  |
|  |  |  |  |  |  |  | Excluding |  |  |  | Total |
|  | Common Units |  | General |  | Noncontrolling |  | Noncontrolling |  | Partners’ |
|  | Units |  | Amount |  | Partner |  | Interests |  | Interests |  | Capital |
|  | (unaudited) |
Balance at December 31, 2013 |  | 359.1 |  | $ | 7,349 |  | $ | 295 |  | $ | 7,644 |  | $ | 59 |  | $ | 7,703 |
Net income |  | — |  | 268 |  | 116 |  | 384 |  | 1 |  | 385 |
Distributions |  | — |  | (221 | ) | (107 | ) | (328 | ) | (1 | ) | (329 | )
Issuance of common units |  | 2.8 |  | 148 |  | 3 |  | 151 |  | — |  | 151 |
Issuance of common units under LTIP, net of units tendered by employees to satisfy tax withholding obligations |  | 0.1 |  | (2 | ) | — |  | (2 | ) | — |  | (2 | )
Equity-indexed compensation expense |  | — |  | 11 |  | 1 |  | 12 |  | — |  | 12 |
Distribution equivalent right payments |  | — |  | (1 | ) | — |  | (1 | ) | — |  | (1 | )
Other comprehensive loss |  | — |  | (133 | ) | (3 | ) | (136 | ) | — |  | (136 | )
Balance at March 31, 2014 |  | 362.0 |  | $ | 7,419 |  | $ | 305 |  | $ | 7,724 |  | $ | 59 |  | $ | 7,783 |

The accompanying notes are an integral part of these condensed consolidated financial statements.

7

Table of Contents

PLAINS ALL AMERICAN PIPELINE, L.P. AND SUBSIDIARIES

NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

Note 1—Organization and Basis of Consolidation and Presentation

Organization

Plains All American Pipeline, L.P. is a Delaware limited partnership formed in 1998. Our operations are conducted directly and indirectly through our primary operating subsidiaries. As used in this Form 10-Q and unless the context indicates otherwise, the terms “Partnership,” “Plains,” “PAA,” “we,” “us,” “our,” “ours” and similar terms refer to Plains All American Pipeline, L.P. and its subsidiaries.

We own and operate midstream energy infrastructure and provide logistics services for crude oil, natural gas liquids (“NGL”), natural gas and refined products. We own an extensive network of pipeline transportation, terminalling, storage and gathering assets in key crude oil and NGL producing basins and transportation corridors and at major market hubs in the United States and Canada. Our business activities are conducted through three operating segments: Transportation, Facilities and Supply and Logistics. See Note 11 for further discussion of our operating segments.

Our 2% general partner interest is held by PAA GP LLC, a Delaware limited liability company, whose sole member is Plains AAP, L.P. (“AAP”), a Delaware limited partnership. In addition to its ownership of PAA GP LLC, AAP also owns all of our incentive distribution rights (“IDRs”). Plains All American GP LLC (“GP LLC”), a Delaware limited liability company, is AAP’s general partner. Plains GP Holdings, L.P. (“PAGP”) is the sole member of GP LLC, and at March 31, 2015, owned an approximate 37% limited partner interest in AAP.

GP LLC manages our operations and activities and employs our domestic officers and personnel. Our Canadian officers and personnel are employed by our subsidiary, Plains Midstream Canada ULC (“PMC”). References to our “general partner,” as the context requires, include any or all of PAA GP LLC, AAP and GP LLC.

Definitions

Additional defined terms are used in this Form 10-Q and shall have the meanings indicated below:

AOCI |  | = |  | Accumulated other comprehensive income / (loss)
Bcf |  | = |  | Billion cubic feet
Btu |  | = |  | British thermal unit
CAD |  | = |  | Canadian dollar
DERs |  | = |  | Distribution equivalent rights
EPA |  | = |  | United States Environmental Protection Agency
FASB |  | = |  | Financial Accounting Standards Board
GAAP |  | = |  | Generally accepted accounting principles in the United States
ICE |  | = |  | Intercontinental Exchange
LIBOR |  | = |  | London Interbank Offered Rate
LTIP |  | = |  | Long-term incentive plan
Mcf |  | = |  | Thousand cubic feet
MLP |  | = |  | Master limited partnership
NGL |  | = |  | Natural gas liquids, including ethane, propane and butane
NYMEX |  | = |  | New York Mercantile Exchange
Oxy |  | = |  | Occidental Petroleum Corporation or its subsidiaries
PLA |  | = |  | Pipeline loss allowance
USD |  | = |  | United States dollar
WTI |  | = |  | West Texas Intermediate

8

Table of Contents

Basis of Consolidation and Presentation

The accompanying unaudited condensed consolidated interim financial statements and related notes thereto should be read in conjunction with our 2014 Annual Report on Form 10-K. The accompanying consolidated financial statements include the accounts of PAA and all of its wholly owned subsidiaries and those entities that it controls. Investments in entities over which we have significant influence but not control are accounted for by the equity method. The financial statements have been prepared in accordance with the instructions for interim reporting as set forth by the SEC. All adjustments (consisting only of normal recurring adjustments) that in the opinion of management were necessary for a fair statement of the results for the interim periods have been reflected. All significant intercompany transactions have been eliminated in consolidation, and certain reclassifications have been made to information from previous years to conform to the current presentation. These reclassifications do not affect net income attributable to PAA. The condensed consolidated balance sheet data as of December 31, 2014 was derived from audited financial statements, but does not include all disclosures required by GAAP. The results of operations for the three months ended March 31, 2015 should not be taken as indicative of results to be expected for the entire year.

Subsequent events have been evaluated through the financial statements issuance date and have been included in the following footnotes where applicable.

Note 2—Recent Accounting Pronouncements

In April 2015, the FASB issued guidance to simplify the presentation of debt issuance costs in entities’ financial statements. Under this revised guidance, an entity will present such costs as a direct reduction from the related debt liability (rather than as an asset under current guidance). Additionally, amortization of the debt issuance costs will be reported as interest expense. This guidance will become effective for interim and annual periods beginning after December 15, 2015 and will be adopted retrospectively to all prior periods. Early adoption is permitted for financial statements that have not been previously issued. We expect to adopt this guidance on January 1, 2016, and we are currently evaluating the effect that adopting this guidance will have on our financial position, results of operations and cash flows.

In February 2015, the FASB issued guidance that revises the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. All legal entities are subject to reevaluation under the revised consolidation model. Among other things, this guidance (i) modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, (ii) eliminates the presumption that a general partner should consolidate a limited partnership and (iii) affects the consolidation analysis of reporting entities that are involved with variable interest entities, particularly those that have fee arrangements and related party relationships. This guidance will become effective for interim and annual periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. We expect to adopt this guidance on January 1, 2016, and we are currently evaluating the effect that adopting this guidance will have on our financial position, results of operations and cash flows.

In January 2015, as part of its initiative to reduce complexity in accounting standards, the FASB issued guidance to eliminate the concept of extraordinary items from GAAP. This guidance will become effective for interim and annual periods beginning after December 15, 2015. We expect to adopt this guidance on January 1, 2016. We do not believe our adoption will have a material impact on our financial position, results of operations or cash flows.

In May 2014, the FASB issued guidance regarding the recognition of revenue from contracts with customers with the underlying principle that an entity will recognize revenue to reflect amounts expected to be received in exchange for the provision of goods and services to customers upon the transfer of those goods or services. The guidance also requires additional disclosures about the nature, amount, timing and uncertainty of revenue and the related cash flows. This guidance becomes effective for interim and annual periods beginning after December 15, 2016 and can be adopted either with a full retrospective approach or a modified retrospective approach with a cumulative-effect adjustment as of the date of adoption. We currently expect to adopt this guidance on January 1, 2017, and we are evaluating which transition approach to apply and the effect that adopting this guidance will have on our financial position, results of operations and cash flows. In April 2015, the FASB proposed a one year deferral of the effective date of this standard.

In April 2014, the FASB issued guidance that modifies the criteria under which assets to be disposed of are evaluated to determine if such assets qualify as a discontinued operation and requires new disclosures for both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. This guidance is effective prospectively for annual and interim reporting periods beginning after December 15, 2014. We adopted this guidance on January 1, 2015. Our adoption did not have a material impact on our financial position, results of operations or cash flows.

9

Table of Contents

Note 3—Net Income Per Limited Partner Unit

Basic and diluted net income per limited partner unit is determined pursuant to the two-class method for MLPs as prescribed in FASB guidance. The two-class method is an earnings allocation formula that is used to determine earnings to our general partner, common unitholders and participating securities according to distributions pertaining to the current period’s net income and participation rights in undistributed earnings. Under this method, all earnings are allocated to our general partner, common unitholders and participating securities based on their respective rights to receive distributions, regardless of whether those earnings would actually be distributed during a particular period from an economic or practical perspective.

We calculate basic and diluted net income per limited partner unit by dividing net income attributable to PAA (after deducting the amount allocated to the general partner’s interest, IDRs and participating securities) by the basic and diluted weighted-average number of limited partner units outstanding during the period. Participating securities include LTIP awards that have vested DERs, which entitle the grantee to a cash payment equal to the cash distribution paid on our outstanding common units.

Diluted net income per limited partner unit is computed based on the weighted average number of limited partner units plus the effect of dilutive potential limited partner units outstanding during the period using the two-class method. Our LTIP awards that contemplate the issuance of common units are considered dilutive unless (i) vesting occurs only upon the satisfaction of a performance condition and (ii) that performance condition has yet to be satisfied. LTIP awards that are deemed to be dilutive are reduced by a hypothetical limited partner unit repurchase based on the remaining unamortized fair value, as prescribed by the treasury stock method in guidance issued by the FASB. See Note 16 to our Consolidated Financial Statements included in Part IV of our 2014 Annual Report on Form 10-K for a complete discussion of our LTIP awards including specific discussion regarding DERs.

The following table sets forth the computation of basic and diluted net income per limited partner unit for the three months ended March 31, 2015 and 2014 (in millions, except per unit data):

|  | Three Months Ended March 31, |
|  | 2015 |  | 2014 |
Basic Net Income per Limited Partner Unit |  |  |  |  |
Net income attributable to PAA |  | $ | 283 |  | $ | 384 |
Less: General partner’s incentive distribution (1) |  | (142 | ) | (110 | )
Less: General partner 2% ownership (1) |  | (3 | ) | (6 | )
Net income available to limited partners |  | 138 |  | 268 |
Less: Undistributed earnings allocated and distributions to participating securities (1) |  | (2 | ) | (2 | )
Net income available to limited partners in accordance with application of the two-class method for MLPs |  | $ | 136 |  | $ | 266 |
Basic weighted average limited partner units outstanding |  | 383 |  | 360 |
Basic net income per limited partner unit |  | $ | 0.36 |  | $ | 0.74 |
Diluted Net Income per Limited Partner Unit |  |  |  |  |
Net income attributable to PAA |  | $ | 283 |  | $ | 384 |
Less: General partner’s incentive distribution (1) |  | (142 | ) | (110 | )
Less: General partner 2% ownership (1) |  | (3 | ) | (6 | )
Net income available to limited partners |  | 138 |  | 268 |
Less: Undistributed earnings allocated and distributions to participating securities (1) |  | (2 | ) | (2 | )
Net income available to limited partners in accordance with application of the two-class method for MLPs |  | $ | 136 |  | $ | 266 |
Basic weighted average limited partner units outstanding |  | 383 |  | 360 |
Effect of dilutive securities: Weighted average LTIP units |  | 2 |  | 3 |
Diluted weighted average limited partner units outstanding |  | 385 |  | 363 |
Diluted net income per limited partner unit |  | $ | 0.35 |  | $ | 0.73 |

10

Table of Contents

(1) We calculate net income available to limited partners based on the distributions pertaining to the current period’s net income. After adjusting for the appropriate period’s distributions, the remaining undistributed earnings or excess distributions over earnings, if any, are allocated to the general partner, limited partners and participating securities in accordance with the contractual terms of the partnership agreement and as further prescribed under the two-class method.

Pursuant to the terms of our partnership agreement, the general partner’s incentive distribution is limited to a percentage of available cash, which, as defined in the partnership agreement, is net of reserves deemed appropriate. As such, IDRs are not allocated undistributed earnings or distributions in excess of earnings in the calculation of net income per limited partner unit. If, however, undistributed earnings were allocated to our IDRs beyond amounts distributed to them under the terms of the partnership agreement, basic and diluted net income per limited partner unit as reflected in the table above would be impacted as follows:

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
Basic net income per limited partner unit impact |  | $ | — |  | $ | (0.05 | )
Diluted net income per limited partner unit impact |  | $ | — |  | $ | (0.05 | )

Note 4—Accounts Receivable

Our accounts receivable are primarily from purchasers and shippers of crude oil and, to a lesser extent, purchasers of NGL and natural gas storage. These purchasers include, but are not limited to, refiners, producers, marketing and trading companies and financial institutions that are active in the physical and financial commodity markets. The majority of our accounts receivable relate to our crude oil supply and logistics activities that can generally be described as high volume and low margin activities, in many cases involving exchanges of crude oil volumes.

To mitigate credit risk related to our accounts receivable, we utilize a rigorous credit review process. We closely monitor market conditions to make a determination with respect to the amount, if any, of open credit to be extended to any given customer and the form and amount of financial performance assurances we require. Such financial assurances are commonly provided to us in the form of advance cash payments, standby letters of credit or parental guarantees. As of March 31, 2015 and December 31, 2014, we had received $130 million and $180 million, respectively, of advance cash payments from third parties to mitigate credit risk. Furthermore, as of March 31, 2015 and December 31, 2014, we had received $12 million and $198 million, respectively, of standby letters of credit to support obligations due from third parties, a portion of which applies to future business. The decrease in standby letters of credit and advance cash payments from third parties as of March 31, 2015 compared to December 31, 2014 is largely due to a decrease in exposure to various customers requiring letters of credit. Furthermore, in an effort to mitigate credit risk, a significant portion of our transactions with counterparties are settled on a net-cash basis. Further, we enter into netting agreements (contractual agreements that allow us to offset receivables and payables with those counterparties against each other on our balance sheet) for a majority of such arrangements.

We review all outstanding accounts receivable balances on a monthly basis and record a reserve for amounts that we expect will not be fully recovered. We do not apply actual balances against the reserve until we have exhausted substantially all collection efforts. At March 31, 2015 and December 31, 2014, substantially all of our accounts receivable (net of allowance for doubtful accounts) were less than 30 days past their scheduled invoice date. Our allowance for doubtful accounts receivable totaled $4 million as of both March 31, 2015 and December 31, 2014. Although we consider our allowance for doubtful accounts receivable to be adequate, actual amounts could vary significantly from estimated amounts.

11

Note 5—Inventory, Linefill and Base Gas and Long-term Inventory

Inventory, linefill and base gas and long-term inventory consisted of the following as of the dates indicated (barrels and natural gas volumes in thousands and carrying value in millions):

|  | March 31, 2015 |  | December 31, 2014 |
|  | Volumes |  | Unit of Measure |  | Carrying Value |  | Price/ Unit (1) |  | Volumes |  | Unit of Measure |  | Carrying Value |  | Price/ Unit (1) |
Inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crude oil |  | 15,351 |  | barrels |  | $ | 686 |  | $ | 44.69 |  |  | 6,465 |  | barrels |  | $ | 304 |  | $ | 47.02 |
NGL |  | 7,277 |  | barrels |  | 154 |  | $ | 21.16 |  |  | 13,553 |  | barrels |  | 454 |  | $ | 33.50 |
Natural gas |  | 10,965 |  | Mcf |  | 31 |  | $ | 2.83 |  |  | 32,317 |  | Mcf |  | 102 |  | $ | 3.16 |
Other |  | N/A |  |  |  | 58 |  | N/A |  |  | N/A |  |  |  | 31 |  | N/A |
Inventory subtotal |  |  |  |  |  | 929 |  |  |  |  |  |  |  |  | 891 |  |  |
Linefill and base gas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crude oil |  | 12,970 |  | barrels |  | 777 |  | $ | 59.91 |  |  | 11,810 |  | barrels |  | 744 |  | $ | 63.00 |
NGL |  | 1,215 |  | barrels |  | 48 |  | $ | 39.51 |  |  | 1,212 |  | barrels |  | 52 |  | $ | 42.90 |
Natural gas |  | 28,612 |  | Mcf |  | 135 |  | $ | 4.72 |  |  | 28,612 |  | Mcf |  | 134 |  | $ | 4.68 |
Linefill and base gas subtotal |  |  |  |  |  | 960 |  |  |  |  |  |  |  |  | 930 |  |  |
Long-term inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crude oil |  | 2,646 |  | barrels |  | 117 |  | $ | 44.22 |  |  | 2,582 |  | barrels |  | 136 |  | $ | 52.67 |
NGL |  | 1,681 |  | barrels |  | 32 |  | $ | 19.04 |  |  | 1,681 |  | barrels |  | 50 |  | $ | 29.74 |
Long-term inventory subtotal |  |  |  |  |  | 149 |  |  |  |  |  |  |  |  | 186 |  |  |
Total |  |  |  |  |  | $ | 2,038 |  |  |  |  |  |  |  |  | $ | 2,007 |  |  |

(1) Price per unit of measure is comprised of a weighted average associated with various grades, qualities and locations. Accordingly, these prices may not coincide with any published benchmarks for such products.

At the end of each reporting period, we assess the carrying value of our inventory and make any adjustments necessary to reduce the carrying value to the applicable net realizable value. Any resulting adjustments are a component of “Purchases and related costs” on our accompanying Condensed Consolidated Statements of Operations. We recorded a charge of $24 million during the three months ended March 31, 2015 primarily related to the writedown of our NGL inventory due to declines in prices. The loss was substantially offset by a portion of the derivative mark-to-market gain that was recognized in the fourth quarter of 2014 for which the related derivatives were still open as of March 31, 2015. See Note 8 for discussion of our derivative and risk management activities. During the three months ended March 31, 2014, we recorded a charge of $37 million related to the writedown of our natural gas inventory that was purchased in conjunction with managing natural gas storage deliverability requirements during the extended period of severe cold weather in the first quarter of 2014.

12

Note 6—Debt

Debt consisted of the following as of the dates indicated (in millions):

|  | March 31, |  | December 31, |
|  | 2015 |  | 2014 |
SHORT-TERM DEBT |  |  |  |  |
Commercial paper notes, bearing a weighted-average interest rate of 0.46% at December 31, 2014 (1) |  | $ | — |  | $ | 734 |
Senior notes: |  |  |  |  |
5.25% senior notes due June 2015 |  | 150 |  | 150 |
3.95% senior notes due September 2015 |  | 400 |  | 400 |
Other |  | 3 |  | 3 |
Total short-term debt |  | 553 |  | 1,287 |
LONG-TERM DEBT |  |  |  |  |
Senior notes, net of unamortized discount of $17 and $18, respectively |  | 8,758 |  | 8,757 |
Other |  | 5 |  | 5 |
Total long-term debt |  | 8,763 |  | 8,762 |
Total debt (2) |  | $ | 9,316 |  | $ | 10,049 |

(1) At December 31, 2014, we classified all of the borrowings under our commercial paper program as short-term as these borrowings were primarily designated as working capital borrowings, must be repaid within one year and were primarily for hedged NGL and crude oil inventory and NYMEX and ICE margin deposits.

(2) Our fixed-rate senior notes (including current maturities) had a face value of approximately $9.3 billion as of both March 31, 2015 and December 31, 2014. We estimated the aggregate fair value of these notes as of March 31, 2015 and December 31, 2014 to be approximately $10.0 billion and $9.9 billion, respectively. Our fixed-rate senior notes are traded among institutions, and these trades are routinely published by a reporting service. Our determination of fair value is based on reported trading activity near quarter end. We estimate that the carrying value of outstanding borrowings under our credit facilities and commercial paper program approximates fair value as interest rates reflect current market rates. The fair value estimates for our senior notes, credit facilities and commercial paper program are based upon observable market data and are classified in Level 2 of the fair value hierarchy.

Credit Facilities

PAA senior unsecured 364-day revolving credit facility. In January 2015, we entered into a 364-day senior unsecured credit agreement with a borrowing capacity of $1.0 billion. Borrowings will accrue interest based, at our election, on either the Eurocurrency Rate or the Base Rate, as defined in the agreement, in each case plus a margin based on our credit rating at the applicable time.

Borrowings and Repayments

Total borrowings under our credit agreements and commercial paper program for the three months ended March 31, 2015 and 2014 were approximately $7.0 billion and $19.2 billion, respectively. Total repayments under our credit agreements and commercial paper program were approximately $7.7 billion and $19.3 billion for the three months ended March 31, 2015 and 2014, respectively. The variance in total gross borrowings and repayments is impacted by various business and financial factors including, but not limited to, the timing, average term and method of general partnership borrowing activities.

Letters of Credit

In connection with our supply and logistics activities, we provide certain suppliers with irrevocable standby letters of credit to secure our obligation for the purchase of crude oil, NGL and natural gas. Additionally, we issue letters of credit to support insurance programs and construction activities. At March 31, 2015 and December 31, 2014, we had outstanding letters of credit of $83 million and $87 million, respectively.

13

Note 7—Partners’ Capital and Distributions

Distributions

The following table details the distributions paid during or pertaining to the first three months of 2015, net of reductions to the general partner’s incentive distributions (in millions, except per unit data):

|  |  |  | Distributions Paid |  | Distributions |
|  |  |  | Limited |  | General Partner |  |  |  | per limited |
Date Declared |  | Distribution Date |  | Partners |  | 2% |  | Incentive |  | Total |  | partner unit |
April 7, 2015 |  | May 15, 2015(1) |  | $ | 272 |  | $ | 6 |  | $ | 142 |  | $ | 420 |  |  | $ | 0.6850 |
January 8, 2015 |  | February 13, 2015 |  | $ | 254 |  | $ | 5 |  | $ | 131 |  | $ | 390 |  |  | $ | 0.6750 |

(1) Payable to unitholders of record at the close of business on May 1, 2015 for the period January 1, 2015 through March 31, 2015.

PAA Equity Offerings

Continuous Offering Program. During the three months ended March 31, 2015, we issued an aggregate of approximately 1.1 million common units under our continuous offering program, generating proceeds of $59 million, including our general partner’s proportionate capital contribution of $1 million, net of $1 million of commissions to our sales agents.

Underwritten Offering. In March 2015, we completed an underwritten public offering of 21.0 million common units, generating proceeds of approximately $1.1 billion, including our general partner’s proportionate capital contribution of $21 million, net of costs associated with the offering.

Noncontrolling Interests in Subsidiaries

As of March 31, 2015, noncontrolling interests in our subsidiaries consisted of a 25% interest in SLC Pipeline LLC.

Note 8—Derivatives and Risk Management Activities

We identify the risks that underlie our core business activities and use risk management strategies to mitigate those risks when we determine that there is value in doing so. Our policy is to use derivative instruments for risk management purposes and not for the purpose of speculating on hydrocarbon commodity (referred to herein as “commodity”) price changes. We use various derivative instruments to (i) manage our exposure to commodity price risk, as well as to optimize our profits, (ii) manage our exposure to interest rate risk and (iii) manage our exposure to currency exchange rate risk. Our commodity risk management policies and procedures are designed to help ensure that our hedging activities address our risks by monitoring our derivative positions, as well as physical volumes, grades, locations, delivery schedules and storage capacity. Our interest rate and currency exchange rate risk management policies and procedures are designed to monitor our derivative positions and ensure that those positions are consistent with our objectives and approved strategies. When we apply hedge accounting, our policy is to formally document all relationships between hedging instruments and hedged items, as well as our risk management objectives for undertaking the hedge. This process includes specific identification of the hedging instrument and the hedged transaction, the nature of the risk being hedged and how the hedging instrument’s effectiveness will be assessed. Both at the inception of the hedge and on an ongoing basis, we assess whether the derivatives used in a transaction are highly effective in offsetting changes in cash flows or the fair value of hedged items.

Commodity Price Risk Hedging

Our core business activities involve certain commodity price-related risks that we manage in various ways, including through the use of derivative instruments. Our policy is to (i) only purchase inventory for which we have a market, (ii) structure our sales contracts so that price fluctuations do not materially affect our operating income and (iii) not acquire and hold physical inventory or derivatives for the purpose of speculating on commodity price changes. The material commodity-related risks inherent in our business activities can be divided into the following general categories:

Commodity Purchases and Sales — In the normal course of our operations, we purchase and sell commodities. We use derivatives to manage the associated risks and to optimize profits. As of March 31, 2015, net derivative positions related to these activities included:

14

· An average of 233,600 barrels per day net long position (total of 7.0 million barrels) associated with our crude oil purchases, which was unwound ratably during April 2015 to match monthly average pricing.

· A net short time spread position averaging 18,200 barrels per day (total of 7.2 million barrels), which hedges a portion of our anticipated crude oil lease gathering purchases through June 2016.

· An average of 37,500 barrels per day (total of 9.1 million barrels) of crude oil grade spread positions through December 2015. These derivatives allow us to lock in grade basis differentials.

· A net short position of 6.8 Bcf through April 2016 related to anticipated sales of natural gas inventory and base gas requirements.

· A net short position of 16.8 million barrels through March 2017 related to anticipated purchases and sales of our crude oil, NGL and refined products inventory.

Natural Gas Processing/NGL Fractionation — We purchase natural gas for processing and operational needs. Additionally, we purchase NGL mix for fractionation and sell the resulting individual specification products (including ethane, propane, butane and condensate). In conjunction with these activities, we hedge the price risk associated with the purchase of the natural gas and the subsequent sale of the individual specification products. As of March 31, 2015, we had a long natural gas position of 18.1 Bcf through December 2016, a short propane position of 3.5 million barrels through December 2016, a short butane position of 1.0 million barrels through December 2016 and a short WTI position of 0.4 million barrels through December 2016. In addition, we had a long power position of 0.4 million megawatt hours, which hedges a portion of our power supply requirements at our natural gas processing and fractionation plants through December 2016.

To the extent they qualify and we decide to make the election, all of our commodity derivatives for which we elect hedge accounting are designated as cash flow hedges. Physical commodity contracts that meet the definition of a derivative but are ineligible, or not designated, for the normal purchases and normal sales scope exception are recorded on the balance sheet at fair value, with changes in fair value recognized in earnings. We have determined that substantially all of our physical purchase and sale agreements qualify for the normal purchases and normal sales scope exception.

Interest Rate Risk Hedging

We use interest rate derivatives to hedge interest rate risk associated with anticipated debt issuances and outstanding debt instruments. The derivative instruments we use to manage this risk consist primarily of interest rate swaps and treasury locks. As of March 31, 2015, AOCI includes deferred losses of $234 million that relate to open and terminated interest rate derivatives that were designated as cash flow hedges. The terminated interest rate derivatives were cash-settled in connection with the issuance or refinancing of debt agreements. The deferred loss related to these instruments is being amortized to interest expense over the terms of the hedged debt instruments.

We have entered into forward starting interest rate swaps to hedge the underlying benchmark interest rate related to forecasted debt issuances through 2019. The following table summarizes the terms of our forward starting interest rate swaps as of March 31, 2015 (notional amounts in millions):

Hedged Transaction |  | Number and Types of Derivatives Employed |  | Notional Amount |  | Expected Termination Date |  | Average Rate Locked |  | Accounting Treatment |
Anticipated debt offering |  | 10 forward starting swaps (30-year) |  | $ | 250 |  | 6/15/2015 |  | 3.60% |  | Cash flow hedge |
Anticipated debt offering |  | 8 forward starting swaps (30-year) |  | $ | 200 |  | 6/15/2016 |  | 3.06% |  | Cash flow hedge |
Anticipated debt offering |  | 8 forward starting swaps (30-year) |  | $ | 200 |  | 6/15/2017 |  | 3.14% |  | Cash flow hedge |
Anticipated debt offering |  | 8 forward starting swaps (30-year) |  | $ | 200 |  | 6/15/2018 |  | 3.20% |  | Cash flow hedge |
Anticipated debt offering |  | 8 forward starting swaps (30-year) |  | $ | 200 |  | 6/14/2019 |  | 2.83% |  | Cash flow hedge |

15

Currency Exchange Rate Risk Hedging

Because a significant portion of our Canadian business is conducted in CAD and, at times, a portion of our debt is denominated in CAD, we use foreign currency derivatives to minimize the risk of unfavorable changes in exchange rates. These instruments include foreign currency exchange contracts and forwards.

As of March 31, 2015, our outstanding foreign currency derivatives include derivatives we use to (i) hedge currency exchange risk associated with USD-denominated commodity purchases and sales in Canada and (ii) hedge currency exchange risk created by the use of USD-denominated commodity derivatives to hedge commodity price risk associated with CAD-denominated commodity purchases and sales.

The following table summarizes our open forward exchange contracts as of March 31, 2015 (in millions):

|  |  |  | USD |  | CAD |  | Average Exchange Rate USD to CAD |
Forward exchange contracts that exchange CAD for USD: |  |  |  |  |  |  |  |  |
|  | 2015 |  | $ | 147 |  | $ | 187 |  | $1.00 - $1.27 |
|  | 2016 |  | 5 |  | 7 |  | $1.00 - $1.27 |
|  |  |  | $ | 152 |  | $ | 194 |  |  |
Forward exchange contracts that exchange USD for CAD: |  |  |  |  |  |  |  |  |
|  | 2015 |  | $ | 181 |  | $ | 225 |  | $1.00 - $1.24 |
|  | 2016 |  | 5 |  | 7 |  | $1.00 - $1.27 |
|  |  |  | $ | 186 |  | $ | 232 |  |  |

Summary of Financial Impact

We record all open derivatives on the balance sheet as either assets or liabilities measured at fair value. Changes in the fair value of derivatives are recognized currently in earnings unless specific hedge accounting criteria are met. For derivatives that qualify as cash flow hedges, changes in fair value of the effective portion of the hedges are deferred in AOCI and recognized in earnings in the periods during which the underlying physical transactions are recognized in earnings. Derivatives that do not qualify for hedge accounting and the portion of cash flow hedges that are not highly effective in offsetting changes in cash flows of the hedged items are recognized in earnings each period. Cash settlements associated with our derivative activities are classified within the same category as the related hedged item in our Condensed Consolidated Statements of Cash Flows.

16

Table of Contents

A summary of the impact of our derivative activities recognized in earnings for the three months ended March 31, 2015 and 2014 is as follows (in millions):

|  | Three Months Ended March 31, 2015 |  |  | Three Months Ended March 31, 2014 |
Location of gain/(loss) |  | Derivatives in Hedging Relationships (1) |  | Derivatives Not Designated as a Hedge |  | Total |  |  | Derivatives in Hedging Relationships (1) |  | Derivatives Not Designated as a Hedge |  | Total |
Commodity Derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  |
Supply and Logistics segment revenues |  | $ | 7 |  | $ | (34 | ) | $ | (27 | ) |  | $ | (19 | ) | $ | — |  | $ | (19 | )
Transportation segment revenues |  | — |  | 2 |  | 2 |  |  | — |  | — |  | — |
Field operating costs |  | — |  | (4 | ) | (4 | ) |  | — |  | (1 | ) | (1 | )
Interest Rate Derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  | (1 | ) | — |  | (1 | ) |  | (1 | ) | — |  | (1 | )
Foreign Currency Derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  |
Supply and Logistics segment revenues |  | — |  | (17 | ) | (17 | ) |  | — |  | (9 | ) | (9 | )
Total Gain/(Loss) on Derivatives Recognized in Net Income |  | $ | 6 |  | $ | (53 | ) | $ | (47 | ) |  | $ | (20 | ) | $ | (10 | ) | $ | (30 | )

(1) Represents gains/(losses) on cash flow hedges reclassified from AOCI to income during the period.

17

Table of Contents

The following table summarizes the derivative assets and liabilities on our Condensed Consolidated Balance Sheet on a gross basis as of March 31, 2015 (in millions):

|  | Asset Derivatives |  |  | Liability Derivatives |
|  | Balance Sheet |  |  |  |  | Balance Sheet |  |  |
|  | Location |  | Fair Value |  |  | Location |  | Fair Value |
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |  |  |
Commodity derivatives |  | Other current assets |  | $ | 18 |  |  | Other long-term liabilities and deferred credits |  | $ | (2 | )
|  | Other long-term liabilities and deferred credits |  | 3 |  |  |  |  |  |
Interest rate derivatives |  |  |  |  |  |  | Other current liabilities |  | (64 | )
|  |  |  |  |  |  | Other long-term liabilities and deferred credits |  | (80 | )
Total derivatives designated as hedging instruments |  |  |  | $ | 21 |  |  |  |  | $ | (146 | )
Derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |  |  |
Commodity derivatives |  | Other current assets |  | $ | 205 |  |  | Other current assets |  | $ | (47 | )
|  | Other long-term assets, net |  | 18 |  |  | Other current liabilities |  | (40 | )
|  | Other long-term liabilities and deferred credits |  | 2 |  |  | Other long-term liabilities and deferred credits |  | (13 | )
Foreign currency derivatives |  |  |  |  |  |  | Other current liabilities |  | (4 | )
Total derivatives not designated as hedging instruments |  |  |  | $ | 225 |  |  |  |  | $ | (104 | )
Total derivatives |  |  |  | $ | 246 |  |  |  |  | $ | (250 | )

The following table summarizes the derivative assets and liabilities on our Condensed Consolidated Balance Sheet on a gross basis as of December 31, 2014 (in millions):

|  | Asset Derivatives |  |  | Liability Derivatives |
|  | Balance Sheet |  | Fair |  |  | Balance Sheet |  | Fair |
|  | Location |  | Value |  |  | Location |  | Value |
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |  |  |
Commodity derivatives |  | Other current assets |  | $ | 23 |  |  | Other current assets |  | $ | (12 | )
|  | Other long-term assets, net |  | 8 |  |  | Other long-term assets, net |  | (1 | )
Interest rate derivatives |  |  |  |  |  |  | Other current liabilities |  | (44 | )
|  |  |  |  |  |  | Other long-term liabilities and deferred credits |  | (26 | )
Total derivatives designated as hedging instruments |  |  |  | $ | 31 |  |  |  |  | $ | (83 | )
Derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |  |  |
Commodity derivatives |  | Other current assets |  | $ | 439 |  |  | Other current assets |  | $ | (246 | )
|  | Other long-term assets, net |  | 23 |  |  | Other long-term assets, net |  | (3 | )
|  |  |  |  |  |  | Other current liabilities |  | (35 | )
|  |  |  |  |  |  | Other long-term liabilities and deferred credits |  | (5 | )
Foreign currency derivatives |  |  |  |  |  |  | Other current liabilities |  | (12 | )
Total derivatives not designated as hedging instruments |  |  |  | $ | 462 |  |  |  |  | $ | (301 | )
Total derivatives |  |  |  | $ | 493 |  |  |  |  | $ | (384 | )

18

Table of Contents

Our derivative transactions are governed through ISDA (International Swaps and Derivatives Association) master agreements and clearing brokerage agreements. These agreements include stipulations regarding the right of set off in the event that we or our counterparty default on our performance obligations. If a default were to occur, both parties have the right to net amounts payable and receivable into a single net settlement between parties.

Our accounting policy is to offset derivative assets and liabilities executed with the same counterparty when a master netting arrangement exists. Accordingly, we also offset derivative assets and liabilities with amounts associated with cash margin. Our exchange-traded derivatives are transacted through clearing brokerage accounts and are subject to margin requirements as established by the respective exchange. On a daily basis, our account equity (consisting of the sum of our cash balance and the fair value of our open derivatives) is compared to our initial margin requirement resulting in the payment or return of variation margin. As of March 31, 2015, we had a net broker payable of $112 million (consisting of initial margin of $61 million reduced by $173 million of variation margin that had been returned to us). As of December 31, 2014, we had a net broker payable of $133 million (consisting of initial margin of $126 million reduced by $259 million of variation margin that had been returned to us).

The following tables present information about derivatives and financial assets and liabilities that are subject to offsetting, including enforceable master netting arrangements as of the dates indicated (in millions):

|  | March 31, 2015 |  |  | December 31, 2014 |
|  | Derivative |  | Derivative |  |  | Derivative |  | Derivative |
|  | Asset Positions |  | Liability Positions |  |  | Asset Positions |  | Liability Positions |
Netting Adjustments: |  |  |  |  |  |  |  |  |  |
Gross position - asset/(liability) |  | $ | 246 |  | $ | (250 | ) |  | $ | 493 |  | $ | (384 | )
Netting adjustment |  | (52 | ) | 52 |  |  | (262 | ) | 262 |
Cash collateral paid/(received) |  | (112 | ) | — |  |  | (133 | ) | — |
Net position - asset/(liability) |  | $ | 82 |  | $ | (198 | ) |  | $ | 98 |  | $ | (122 | )
Balance Sheet Location After Netting Adjustments: |  |  |  |  |  |  |  |  |  |
Other current assets |  | $ | 64 |  | $ | — |  |  | $ | 71 |  | $ | — |
Other long-term assets, net |  | 18 |  | — |  |  | 27 |  | — |
Other current liabilities |  | — |  | (108 | ) |  | — |  | (91 | )
Other long-term liabilities and deferred credits |  | — |  | (90 | ) |  | — |  | (31 | )
|  | $ | 82 |  | $ | (198 | ) |  | $ | 98 |  | $ | (122 | )

As of March 31, 2015, there was a net loss of $237 million deferred in AOCI including tax effects. The deferred net loss recorded in AOCI is expected to be reclassified to future earnings contemporaneously with (i) the earnings recognition of the underlying hedged commodity transaction or (ii) interest expense accruals associated with underlying debt instruments. Of the total net loss deferred in AOCI at March 31, 2015, we expect to reclassify a net gain of $9 million to earnings in the next twelve months. The remaining deferred loss of $246 million is expected to be reclassified to earnings through 2049. A portion of these amounts are based on market prices as of March 31, 2015; thus, actual amounts to be reclassified will differ and could vary materially as a result of changes in market conditions.

The net deferred gain/(loss), including tax effects, recognized in AOCI for derivatives for the three months ended March 31, 2015 and 2014 was as follows (in millions):

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
Commodity derivatives, net |  | $ | 3 |  | $ | (12 | )
Interest rate derivatives, net |  | (75 | ) | (20 | )
Total |  | $ | (72 | ) | $ | (32 | )

At March 31, 2015 and December 31, 2014, none of our outstanding derivatives contained credit-risk related contingent features that would result in a material adverse impact to us upon any change in our credit ratings. Although we may be required to post margin on our cleared derivatives as described above, we do not require our non-cleared derivative counterparties to post collateral with us.

19

Table of Contents

Recurring Fair Value Measurements

Derivative Financial Assets and Liabilities

The following table sets forth by level within the fair value hierarchy our financial assets and liabilities that were accounted for at fair value on a recurring basis as of March 31, 2015 and December 31, 2014 (in millions):

|  | Fair Value as of March 31, 2015 |  |  | Fair Value as of December 31, 2014 |
Recurring Fair Value Measures (1) |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |
Commodity derivatives |  | $ | 16 |  | $ | 123 |  | $ | 5 |  | $ | 144 |  |  | $ | (85 | ) | $ | 261 |  | $ | 15 |  | $ | 191 |
Interest rate derivatives |  | — |  | (144 | ) | — |  | (144 | ) |  | — |  | (70 | ) | — |  | (70 | )
Foreign currency derivatives |  | — |  | (4 | ) | — |  | (4 | ) |  | — |  | (12 | ) | — |  | (12 | )
Total net derivative asset/(liability) |  | $ | 16 |  | $ | (25 | ) | $ | 5 |  | $ | (4 | ) |  | $ | (85 | ) | $ | 179 |  | $ | 15 |  | $ | 109 |

(1) Derivative assets and liabilities are presented above on a net basis but do not include related cash margin deposits.

Level 1

Level 1 of the fair value hierarchy includes exchange-traded commodity derivatives such as futures and options. The fair value of exchange-traded commodity derivatives is based on unadjusted quoted prices in active markets.

Level 2

Level 2 of the fair value hierarchy includes exchange-cleared commodity derivatives and over-the-counter commodity, interest rate and foreign currency derivatives that are traded in active markets. In addition, it includes certain physical commodity contracts. The fair value of these derivatives is based on broker price quotations which are corroborated with market observable inputs.

Level 3

Level 3 of the fair value hierarchy includes certain physical commodity contracts. The fair value of our Level 3 physical commodity contracts is based on a valuation model utilizing broker-quoted forward commodity prices, and timing estimates, which involve management judgment. The significant unobservable inputs used in the fair value measurement of our Level 3 derivatives are forward prices obtained from brokers. A significant increase or decrease in these forward prices could result in a material change in fair value to our Level 3 derivatives. We reported unrealized gains and losses associated with Level 3 commodity derivatives in our Condensed Consolidated Statements of Operations as Supply and Logistics segment revenues.

Rollforward of Level 3 Net Asset/(Liability)

The following table provides a reconciliation of changes in fair value of the beginning and ending balances for our derivatives classified as Level 3 for the three months ended March 31, 2015 and 2014 (in millions):

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
Beginning Balance |  | $ | 15 |  | $ | (3 | )
Total gains/(losses) for the period: |  |  |  |  |
Settlements |  | (12 | ) | 3 |
Derivatives entered into during the period |  | 2 |  | 1 |
Ending Balance |  | $ | 5 |  | $ | 1 |
Change in unrealized gains/(losses) included in earnings relating to Level 3 derivatives still held at the end of the period |  | $ | 2 |  | $ | 1 |

20

Table of Contents

Note 9—Equity-Indexed Compensation Plans

We refer to the PAA LTIPs and AAP Management Units collectively as our “equity-indexed compensation plans.” For additional discussion of our equity-indexed compensation plans and awards, see Note 16 to our Consolidated Financial Statements included in Part IV of our 2014 Annual Report on Form 10-K.

PAA LTIP Awards

Activity for LTIP awards under our equity-indexed compensation plans denominated in PAA units is summarized in the following table (units in millions):

|  |  |  | Weighted Average |
|  |  |  | Grant Date |
|  | Units (1) |  | Fair Value per Unit |
Outstanding at December 31, 2014 |  | 7.3 |  | $ | 41.45 |
Granted |  | 1.1 |  | $ | 39.99 |
Vested (2) |  | — |  | $ | 40.23 |
Cancelled or forfeited |  | (0.1 | ) | $ | 39.69 |
Outstanding at March 31, 2015 |  | 8.3 |  | $ | 41.26 |

(1) Amounts do not include AAP Management Units.

(2) During the three months ended March 31, 2015, less than 0.1 million PAA LTIP awards were settled in cash.

AAP Management Units

Activity for AAP Management Units is summarized in the following table (in millions):

|  | Reserved for Future Grants |  | Outstanding |  | Outstanding Units Earned |  | Grant Date Fair Value of Outstanding AAP Management Units (1) |
Balance at December 31, 2014 |  | 3.0 |  | 49.1 |  | 47.8 |  |  | $ | 64 |
Earned |  | N/A |  | N/A |  | 0.3 |  |  | N/A |
Balance at March 31, 2015 |  | 3.0 |  | 49.1 |  | 48.1 |  |  | $ | 64 |

(1) Of the $64 million grant date fair value, $56 million had been recognized through March 31, 2015 on a cumulative basis. Of this amount, $1 million was recognized as expense during the three months ended March 31, 2015.

Other Consolidated Equity-Indexed Compensation Plan Information

The table below summarizes the expense recognized and the value of vested LTIP awards (settled both in common units and cash) under our equity-indexed compensation plans and includes both liability-classified and equity-classified awards (in millions):

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
Equity-indexed compensation expense |  | $ | 19 |  | $ | 34 |
LTIP unit-settled vestings |  | $ | — |  | $ | 5 |
LTIP cash-settled vestings (1) |  | $ | — |  | $ | 1 |
DER cash payments |  | $ | 2 |  | $ | 2 |

(1) For the three months ended March 31, 2015, the value of PAA LTIP awards that were settled in cash was less than $1 million.

21

Table of Contents

Note 10—Commitments and Contingencies

Litigation

In the ordinary course of business, we are involved in various legal proceedings. To the extent we are able to assess the likelihood of a negative outcome for these proceedings, our assessments of such likelihood range from remote to probable. If we determine that a negative outcome is probable and the amount of loss is reasonably estimable, we accrue the estimated amount. We do not believe that the outcome of these legal proceedings, individually or in the aggregate, will have a material adverse effect on our financial condition, results of operations or cash flows. Although we believe that our operations are presently in material compliance with applicable requirements, as we acquire and incorporate additional assets it is possible that the EPA or other governmental entities may seek to impose fines, penalties or performance obligations on us (or on a portion of our operations) as a result of any past noncompliance whether such noncompliance initially developed before or after our acquisition.

Environmental

General. Although we believe that our efforts to enhance our leak prevention and detection capabilities have produced positive results, we have experienced (and likely will experience future) releases of hydrocarbon products into the environment from our pipeline, rail and storage operations. These releases can result from unpredictable man-made or natural forces and may reach surface water bodies, groundwater aquifers or other sensitive environments. Whether current or past, damages and liabilities associated with any such releases from our assets may substantially affect our business.

At March 31, 2015, our estimated undiscounted reserve for environmental liabilities totaled $75 million, of which $11 million was classified as short-term and $64 million was classified as long-term. At December 31, 2014, our estimated undiscounted reserve for environmental liabilities totaled $82 million, of which $13 million was classified as short-term and $69 million was classified as long-term. The short- and long-term environmental liabilities referenced above are reflected in “Accounts payable and accrued liabilities” and “Other long-term liabilities and deferred credits,” respectively, on our Condensed Consolidated Balance Sheets. At March 31, 2015 and December 31, 2014, we had recorded receivables totaling $7 million and $8 million, respectively, for amounts probable of recovery under insurance and from third parties under indemnification agreements, which are predominantly reflected in “Trade accounts receivable and other receivables, net” on our Condensed Consolidated Balance Sheets.

In some cases, the actual cash expenditures may not occur for three years or longer. Our estimates used in these reserves are based on information currently available to us and our assessment of the ultimate outcome. Among the many uncertainties that impact our estimates are the necessary regulatory approvals for, and potential modification of, our remediation plans, the limited amount of data available upon initial assessment of the impact of soil or water contamination, changes in costs associated with environmental remediation services and equipment and the possibility of existing legal claims giving rise to additional liabilities. Therefore, although we believe that the reserve is adequate, costs incurred may be in excess of the reserve and may potentially have a material adverse effect on our financial condition, results of operations or cash flows.

Bay Springs Pipeline Release. During February 2013, we experienced a crude oil release of approximately 120 barrels on a portion of one of our pipelines near Bay Springs, Mississippi. Most of the released crude oil was contained within our pipeline right of way, but some of the released crude oil entered a nearby waterway where it was contained with booms. The EPA has issued an administrative order requiring us to take various actions in response to the release, including remediation, reporting and other actions. We have satisfied the requirements of the administrative order; however, we may be subjected to a civil penalty. The aggregate cost to clean up and remediate the site was $6 million.

Kemp River Pipeline Releases. During May and June 2013, two separate releases were discovered on our Kemp River pipeline in Northern Alberta, Canada that, in the aggregate, resulted in the release of approximately 700 barrels of condensate and light crude oil. Clean-up and remediation activities are being conducted in cooperation with the applicable regulatory agencies. Final investigation by the Alberta Energy Regulator is not complete. To date, no charges, fines or penalties have been assessed against PMC with respect to these releases; however, it is possible that fines or penalties may be assessed against PMC in the future. We estimate that the aggregate clean-up and remediation costs associated with these releases will be $15 million. Through March 31, 2015, we spent $9 million in connection with clean-up and remediation activities.

22

Table of Contents

National Energy Board Audit. In the third quarter of 2014, the National Energy Board (“NEB”) of Canada notified PMC that various corrective actions from a 2010 audit had not been completed to the satisfaction of the NEB. The NEB initiated a process to assess PMC’s approach to compliance with the NEB’s Onshore Pipeline Regulations, which process resulted in the issuance by the NEB of an order on January 15, 2015 that imposed six conditions on PMC designed to enhance PMC’s ability to operate its pipelines in a manner that protects the public and the environment. The conditions include the filing of certain safety critical tasks, controls and programs with the NEB, external audits of certain PMC programs and systems, and periodic update meetings with NEB staff regarding the status and progress of corrective actions. In early February 2015, the NEB imposed a penalty on PMC of $76,000 CAD related to these issues. It is possible that additional fines and penalties may be assessed against PMC in the future related to this matter.

In the Matter of Bakersfield Crude Terminal LLC et al. On April 30, 2015, the EPA issued a Finding and Notice of Violation (“NOV”) to PAA’s Bakersfield Crude Terminal LLC for alleged violations of the Clean Air Act, as amended. The NOV, which cites 10 separate rule violations, questions the validity of construction and operating permits issued to our Bakersfield rail unloading facility in 2012 and 2014 by the San Joaquin Valley Air Pollution Control District (the “SJV District”). We believe we fully complied with all applicable regulatory requirements and that the permits issued to us by the SJV District are valid. To date, no fines or penalties have been assessed in this matter; however, it is possible that fines and penalties could be assessed in the future.

Note 11—Operating Segments

We manage our operations through three operating segments: Transportation, Facilities and Supply and Logistics. Our Chief Operating Decision Maker (our Chief Executive Officer) evaluates segment performance based on measures including segment profit and maintenance capital investment. We define segment profit 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. Each of the items above excludes depreciation and amortization. Maintenance capital consists of capital expenditures for the replacement of partially or fully depreciated assets in order to maintain the operating and/or earnings capacity of our existing assets.

The following table reflects certain financial data for each segment for the periods indicated (in millions):

|  | Transportation |  | Facilities |  | Supply and Logistics |  | Total |
Three Months Ended March 31, 2015 |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |
External Customers |  | $ | 185 |  | $ | 125 |  | $ | 5,632 |  | $ | 5,942 |
Intersegment (1) |  | 215 |  | 132 |  | 2 |  | 349 |
Total revenues of reportable segments |  | $ | 400 |  | $ | 257 |  | $ | 5,634 |  | $ | 6,291 |
Equity earnings in unconsolidated entities |  | $ | 37 |  | $ | — |  | $ | — |  | $ | 37 |
Segment profit (2) (3) |  | $ | 241 |  | $ | 142 |  | $ | 130 |  | $ | 513 |
Maintenance capital |  | $ | 33 |  | $ | 15 |  | $ | 2 |  | $ | 50 |

|  | Transportation |  | Facilities |  | Supply and Logistics |  | Total |
Three Months Ended March 31, 2014 |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |
External Customers |  | $ | 181 |  | $ | 157 |  | $ | 11,346 |  | $ | 11,684 |
Intersegment (1) |  | 206 |  | 142 |  | 22 |  | 370 |
Total revenues of reportable segments |  | $ | 387 |  | $ | 299 |  | $ | 11,368 |  | $ | 12,054 |
Equity earnings in unconsolidated entities |  | $ | 20 |  | $ | — |  | $ | — |  | $ | 20 |
Segment profit (2) (3) |  | $ | 206 |  | $ | 154 |  | $ | 249 |  | $ | 609 |
Maintenance capital |  | $ | 34 |  | $ | 10 |  | $ | 2 |  | $ | 46 |

(1) Segment revenues and purchases and related costs include intersegment amounts. Intersegment sales are conducted at posted tariff rates, rates similar to those charged to third parties or rates that we believe approximate market. For further discussion, see “Analysis of Operating Segments” under Item 7 of our 2014 Annual Report on Form 10-K.

(2) Supply and Logistics segment profit includes interest expense (related to hedged inventory purchases) of $1 million and $2 million for the three months ended March 31, 2015 and 2014, respectively.

23

Table of Contents

(3) The following table reconciles segment profit to net income attributable to PAA (in millions):

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
Segment profit |  | $ | 513 |  | $ | 609 |
Depreciation and amortization |  | (107 | ) | (96 | )
Interest expense, net |  | (102 | ) | (78 | )
Other expense, net |  | (4 | ) | (2 | )
Income before tax |  | 300 |  | 433 |
Income tax expense |  | (16 | ) | (48 | )
Net income |  | 284 |  | 385 |
Net income attributable to noncontrolling interests |  | (1 | ) | (1 | )
Net income attributable to PAA |  | $ | 283 |  | $ | 384 |

Note 12—Related Party Transactions

See Note 15 to our Consolidated Financial Statements included in Part IV of our 2014 Annual Report on Form 10-K for a complete discussion of our related party transactions.

Transactions with Oxy

As of March 31, 2015, Oxy owned approximately 13% of the limited partner interests in our general partner and had a representative on the board of directors of GP LLC. During the three months ended March 31, 2015 and 2014, we recognized sales and transportation revenues and purchased petroleum products from Oxy. These transactions were conducted at posted tariff rates or prices that we believe approximate market. See detail below (in millions):

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
Revenues |  | $ | 176 |  | $ | 92 |
Purchases and related costs |  | $ | 104 |  | $ | 259 |

We currently have a netting arrangement with O xy. Our gross receivable and payable amounts with Oxy were as follows (in millions):

|  | March 31, |  | December 31, |
|  | 2015 |  | 2014 |
Trade accounts receivable and other receivables |  | $ | 465 |  | $ | 489 |
Accounts payable |  | $ | 410 |  | $ | 441 |

24

Table of Contents

Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

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 2014 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

· Acquisitions and Capital Projects

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

Overview of Operating Results, Capital Investments and Other Significant Activities

During the first three months of 2015, we recognized net income attributable to PAA of $283 million as compared to net income attributable to PAA of $384 million recognized during the first three months of 2014. The decrease in operating results was due to less favorable results from our Supply and Logistics and Facilities segments partially offset by growth in our Transportation segment (see further discussion of our segment operating results in the following sections). Net income attributable to PAA for the first three months of 2015 was also impacted by:

· Higher depreciation and amortization expense and interest expense associated with our growing asset base and related financing activities; and

· Decreased income tax expense resulting from derivative mark-to-market losses in our Canadian operations.

We invested $586 million in midstream infrastructure projects during the three months ended March 31, 2015, with a targeted expansion capital plan for the full year of 2015 of $2.15 billion. To fund such capital activities, we issued approximately 22.1 million common units for net proceeds of approximately $1.1 billion during the first quarter. In addition, we paid $390 million of cash distributions to our limited partners and general partner during the three months ended March 31, 2015, and we declared a quarterly distribution of $0.6850 per limited partner unit to be paid on May 15, 2015.

25

Table of Contents

Acquisitions and Capital Projects

The following table summarizes our expenditures for acquisition capital, expansion capital and maintenance capital for the periods indicated (in millions):

|  | Three Months Ended |
|  | March 31, |
|  | 2015 |  | 2014 |
Acquisition capital |  | $ | 64 |  | $ | — |
Expansion capital (1) |  | 586 |  | 563 |
Maintenance capital (1) |  | 50 |  | 46 |
|  | $ | 700 |  | $ | 609 |

(1) Capital expenditures made to expand the existing operating and/or earnings capacity of our assets are classified as expansion capital. Capital expenditures for the replacement 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.

2015 Capital Projects

Our capital program is highlighted by a large number of small-to-medium sized projects spread across multiple geographic regions/resource plays. We believe the diversity of our program mitigates the impact of delays, cost overruns or adverse market developments with respect to a particular project or geographic region/resource play. The majority of our 2015 expansion capital program will be invested in our fee-based Transportation and Facilities segments. We expect that our investments will have minimal contributions to our 2015 results, but will provide growth for 2016 and beyond. The following table summarizes our notable projects in progress during 2015 and the forecasted expenditures for the year ending December 31, 2015 (in millions):

Projects |  | 2015 |
Permian Basin Area Projects |  | $390 |
Fort Saskatchewan Facility Projects / NGL Line |  | 300 |
Rail Terminal Projects (1) |  | 265 |
Cactus Pipeline (2) |  | 135 |
Diamond Pipeline |  | 130 |
Red River Pipeline (Cushing to Longview) |  | 130 |
Saddlehorn Pipeline |  | 100 |
Eagle Ford JV Project |  | 90 |
Cowboy Pipeline (Cheyenne to Carr) |  | 50 |
Eagle Ford Area Projects |  | 45 |
Cushing Terminal Expansions |  | 40 |
Line 63 Reactivation |  | 25 |
Other Projects |  | 450 |
|  | $2,150 |
Potential Adjustments for Timing / Scope Refinement (3) |  | -$50 + $100 |
Total Projected Expansion Capital Expenditures |  | $2,100 - $2,250 |
Maintenance Capital Expenditures |  | $205 - $225 |

(1) Includes railcar purchases and projects located in or near St. James, LA and Kerrobert, Canada.

(2) Includes linefill costs associated with the project.

(3) Potential variation to current capital costs estimates may result from (i) changes to project design, (ii) final cost of materials and labor and (iii) timing of incurrence of costs due to uncontrollable factors such as permits, regulatory approvals and weather.

26

Table of Contents

Results of Operations

We manage our operations through three operating segments: Transportation, Facilities and Supply and Logistics. Our Chief Operating Decision Maker (our Chief Executive Officer) evaluates such segment performance based on a variety of measures including segment profit, segment volumes, segment profit per barrel and maintenance capital investment. See Note 19 to our Consolidated Financial Statements included in Part IV of our 2014 Annual Report on Form 10-K for further discussion of how we evaluate segment profit.

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

|  | Three Months Ended |  | Favorable/(Unfavorable) |
|  | March 31, |  | Variance |
|  | 2015 |  | 2014 |  | $ |  | % |
Transportation segment profit |  | $ | 241 |  | $ | 206 |  |  | $ | 35 |  | 17 | %
Facilities segment profit |  | 142 |  | 154 |  |  | (12 | ) | (8 | )%
Supply and Logistics segment profit |  | 130 |  | 249 |  |  | (119 | ) | (48 | )%
Total segment profit |  | 513 |  | 609 |  |  | (96 | ) | (16 | )%
Depreciation and amortization |  | (107 | ) | (96 | ) |  | (11 | ) | (11 | )%
Interest expense, net |  | (102 | ) | (78 | ) |  | (24 | ) | (31 | )%
Other expense, net |  | (4 | ) | (2 | ) |  | (2 | ) | (100 | )%
Income tax expense |  | (16 | ) | (48 | ) |  | 32 |  | 67 | %
Net income |  | 284 |  | 385 |  |  | (101 | ) | (26 | )%
Net income attributable to noncontrolling interests |  | (1 | ) | (1 | ) |  | — |  | — | %
Net income attributable to PAA |  | $ | 283 |  | $ | 384 |  |  | $ | (101 | ) | (26 | )%
Net income attributable to PAA: |  |  |  |  |  |  |  |  |  |
Basic net income per limited partner unit |  | $ | 0.36 |  | $ | 0.74 |  |  | $ | (0.38 | ) | (51 | )%
Diluted net income per limited partner unit |  | $ | 0.35 |  | $ | 0.73 |  |  | $ | (0.38 | ) | (52 | )%
Basic weighted average limited partner units outstanding |  | 383 |  | 360 |  |  | 23 |  | 6 | %
Diluted weighted average limited partner units outstanding |  | 385 |  | 363 |  |  | 22 |  | 6 | %

Non-GAAP Financial Measures

To supplement our financial information presented in accordance with GAAP, management uses additional measures that are known as “non-GAAP financial measures” in its evaluation of past performance and prospects for the future. The primary additional measures used by management are adjusted earnings before interest, taxes, depreciation and amortization (“adjusted EBITDA”) and implied distributable cash flow (“DCF”).

Management believes that the presentation of such additional financial measures provides useful information to investors regarding our performance and results of operations because these measures, when used in conjunction with related GAAP financial measures, (i) provide additional information about our core operating performance and ability to generate and distribute cash flow, (ii) provide investors with the financial analytical framework upon which management bases financial, operational, compensation and planning decisions and (iii) present measurements that investors, rating agencies and debt holders have indicated are useful in assessing us and our results of operations. These measures may exclude, for example, (i) charges for obligations that are expected to be settled with the issuance of equity instruments, (ii) 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, (iii) long-term inventory costing adjustments, (iv) items that are not indicative of our core operating results and business outlook and/or (v) other items that we believe should be excluded in understanding our core operating performance. We have defined all such items hereinafter as “Selected Items Impacting Comparability.” These additional financial measures are reconciled to the most directly comparable measures as reported in accordance with GAAP, and should be viewed in addition to, and not in lieu of, our Condensed Consolidated Financial Statements and footnotes.

27

The following table sets forth non-GAAP financial measures that are reconciled to the most directly comparable GAAP measures (in millions):

|  | Three Months Ended |  |  | Favorable/(Unfavorable) |
|  | March 31, |  |  | Variance |
|  | 2015 |  | 2014 |  |  | $ |  | % |
Net income |  | $ | 284 |  | $ | 385 |  |  | $ | (101 | ) | (26 | )%
Add: |  |  |  |  |  |  |  |  |  |
Interest expense, net |  | 102 |  | 78 |  |  | 24 |  | 31 | %
Income tax expense |  | 16 |  | 48 |  |  | (32 | ) | (67 | )%
Depreciation and amortization |  | 107 |  | 96 |  |  | 11 |  | 11 | %
EBITDA |  | $ | 509 |  | $ | 607 |  |  | $ | (98 | ) | (16 | )%
Selected Items Impacting Comparability of EBITDA |  |  |  |  |  |  |  |  |  |
Gains/(losses) from derivative activities net of inventory valuation adjustments (1) |  | $ | (91 | ) | $ | 65 |  |  | $ | (156 | ) | (240 | )%
Long-term inventory costing adjustments (2) |  | (38 | ) | — |  |  | (38 | ) | N/A |
Equity-indexed compensation expense (3) |  | (11 | ) | (19 | ) |  | 8 |  | 42 | %
Net gain/(loss) on foreign currency revaluation (4) |  | 27 |  | (5 | ) |  | 32 |  | 640 | %
Other (5) |  | — |  | (1 | ) |  | 1 |  | 100 | %
Selected Items Impacting Comparability of EBITDA |  | $ | (113 | ) | $ | 40 |  |  | $ | (153 | ) | (383 | )%
EBITDA |  | $ | 509 |  | $ | 607 |  |  | $ | (98 | ) | (16 | )%
Selected Items Impacting Comparability of EBITDA |  | 113 |  | (40 | ) |  | 153 |  | 383 | %
Adjusted EBITDA |  | $ | 622 |  | $ | 567 |  |  | $ | 55 |  | 10 | %
Adjusted EBITDA |  | $ | 622 |  | $ | 567 |  |  | $ | 55 |  | 10 | %
Interest expense, net |  | (102 | ) | (78 | ) |  | (24 | ) | (31 | )%
Maintenance capital (6) |  | (50 | ) | (46 | ) |  | (4 | ) | (9 | )%
Current income tax expense |  | (42 | ) | (36 | ) |  | (6 | ) | (17 | )%
Equity earnings in unconsolidated entities, net of distributions |  | 17 |  | 5 |  |  | 12 |  | 240 | %
Distributions to noncontrolling interests (7) |  | (1 | ) | (1 | ) |  | — |  | — | %
Implied DCF |  | $ | 444 |  | $ | 411 |  |  | $ | 33 |  | 8 | %
Less: Distributions paid (7) |  | (420 | ) | (344 | ) |  |  |  |  |
DCF Excess/(Shortage) (8) |  | $ | 24 |  | $ | 67 |  |  |  |  |  |

(1) We use derivative instruments for risk management purposes and our related processes include specific identification of hedging instruments to an underlying hedged transaction. Although we identify an underlying transaction for each derivative instrument we enter into, there may not be an accounting hedge relationship between the instrument and the underlying transaction. In the course of evaluating our results of operations, we identify the earnings that were recognized during the period related to derivative instruments for which the identified underlying transaction does not occur in the current period and exclude the related gains and losses in determining Adjusted EBITDA. In addition, we exclude gains and losses on derivatives that are related to investing activities, such as the purchase of linefill. We also exclude the impact of corresponding inventory valuation adjustments, as applicable. See Note 8 to our Condensed Consolidated Financial Statements for a comprehensive discussion regarding our derivatives and risk management activities.

(2) We carry approximately 4 million barrels of crude oil and NGL inventory that consists of minimum working inventory requirements in third-party assets and other working inventory that is needed for our commercial operations. We consider this inventory necessary to conduct our operations and we intend to carry this inventory for the foreseeable future. Therefore, we classify this inventory as long-term on our balance sheet and do not hedge the inventory with derivative instruments (similar to Linefill in our own assets). We treat the impact of changes in the average cost of the long-term inventory that result from fluctuations in market prices and writedowns of such inventory that result from price declines as a selected item impacting comparability. See Note 5 to our Consolidated Financial Statements included in Part IV of our 2014 Annual Report on Form 10-K for a complete discussion of our long-term inventory.

28

(3) Our total equity-indexed compensation expense includes expense associated with awards that will or may be settled in units and awards that will or may be settled in cash. The awards that will or may be settled in units are included in our diluted earnings per unit calculation when the applicable performance criteria have been met. We consider the compensation expense associated with these awards as a selected item impacting comparability as the dilutive impact of the outstanding awards is included in our diluted earnings per unit calculation and the majority of the awards are expected to be settled in units. The portion of compensation expense associated with awards that are certain to be settled in cash is not considered a selected item impacting comparability. See Note 16 to our Consolidated Financial Statements included in Part IV of our 2014 Annual Report on Form 10-K for a comprehensive discussion regarding our equity-indexed compensation plans.

(4) During the three months ended March 31, 2015 and 2014, there were fluctuations in the value of the Canadian dollar (“CAD”) to the U.S. dollar (“USD”), resulting in gains and losses that were not related to our core operating results for the period and were thus classified as selected items impacting comparability.

(5) Includes other immaterial selected items impacting comparability.

(6) Maintenance capital expenditures are defined as capital expenditures for the replacement of partially or fully depreciated assets in order to maintain the operating and/or earnings capacity of our existing assets.

(7) Includes distributions that pertain to the current period’s net income and are paid in the subsequent period.

(8) Excess DCF is retained to establish reserves for future distributions, capital expenditures and other partnership purposes.

Analysis of Operating Segments

Transportation Segment

Our Transportation segment operations generally consist of fee-based activities associated with transporting crude oil and NGL on pipelines, gathering systems, trucks and barges. The Transportation segment generates revenue through a combination of tariffs, third-party pipeline capacity agreements and other transportation fees.

The following tables set forth our operating results from our Transportation segment for the periods indicated:

|  | Three Months Ended |  |  | Favorable/(Unfavorable) |
Operating Results (1) |  | March 31, |  |  | Variance |
(in millions, except per barrel data) |  | 2015 |  | 2014 |  |  | $ |  | % |
Revenues |  |  |  |  |  |  |  |  |  |
Tariff activities |  | $ | 358 |  | $ | 336 |  |  | $ | 22 |  | 7 | %
Trucking |  | 42 |  | 51 |  |  | (9 | ) | (18 | )%
Total transportation revenues |  | 400 |  | 387 |  |  | 13 |  | 3 | %
Costs and Expenses |  |  |  |  |  |  |  |  |  |
Trucking costs |  | (30 | ) | (37 | ) |  | 7 |  | 19 | %
Field operating costs (2) |  | (136 | ) | (129 | ) |  | (7 | ) | (5 | )%
Equity-indexed compensation expense - operations |  | (3 | ) | (4 | ) |  | 1 |  | 25 | %
Segment general and administrative expenses (2) (3) |  | (22 | ) | (22 | ) |  | — |  | — | %
Equity-indexed compensation expense - general and administrative |  | (5 | ) | (9 | ) |  | 4 |  | 44 | %
Equity earnings in unconsolidated entities |  | 37 |  | 20 |  |  | 17 |  | 85 | %
Segment profit |  | $ | 241 |  | $ | 206 |  |  | $ | 35 |  | 17 | %
Maintenance capital |  | $ | 33 |  | $ | 34 |  |  | $ | 1 |  | 3 | %
Segment profit per barrel |  | $ | 0.63 |  | $ | 0.60 |  |  | $ | 0.03 |  | 5 | %

29

|  | Three Months Ended |  |  | Favorable/(Unfavorable) |
Average Daily Volumes |  | March 31, |  |  | Variance |
(in thousands of barrels per day) (4) |  | 2015 |  | 2014 |  |  | Volumes |  | % |
Tariff activities |  |  |  |  |  |  |  |  |  |
Crude Oil Pipelines |  |  |  |  |  |  |  |  |  |
All American |  | 36 |  | 33 |  |  | 3 |  | 9 | %
Bakken Area Systems (5) |  | 152 |  | 131 |  |  | 21 |  | 16 | %
Basin / Mesa / Sunrise |  | 821 |  | 745 |  |  | 76 |  | 10 | %
BridgeTex |  | 83 |  | — |  |  | 83 |  | N/A |
Capline |  | 153 |  | 126 |  |  | 27 |  | 21 | %
Eagle Ford Area Systems (5) |  | 263 |  | 189 |  |  | 74 |  | 39 | %
Line 63 / Line 2000 |  | 136 |  | 125 |  |  | 11 |  | 9 | %
Manito |  | 53 |  | 45 |  |  | 8 |  | 18 | %
Mid-Continent Area Systems |  | 371 |  | 326 |  |  | 45 |  | 14 | %
Permian Basin Area Systems |  | 754 |  | 760 |  |  | (6 | ) | (1 | )%
Rainbow |  | 118 |  | 120 |  |  | (2 | ) | (2 | )%
Rangeland |  | 62 |  | 69 |  |  | (7 | ) | (10 | )%
Salt Lake City Area Systems (5) |  | 130 |  | 131 |  |  | (1 | ) | (1 | )%
South Saskatchewan |  | 66 |  | 64 |  |  | 2 |  | 3 | %
White Cliffs |  | 47 |  | 23 |  |  | 24 |  | 104 | %
Other |  | 687 |  | 650 |  |  | 37 |  | 6 | %
NGL Pipelines |  |  |  |  |  |  |  |  |  |
Co-Ed |  | 61 |  | 57 |  |  | 4 |  | 7 | %
Other |  | 130 |  | 116 |  |  | 14 |  | 12 | %
Tariff activities total |  | 4,123 |  | 3,710 |  |  | 413 |  | 11 | %
Trucking |  | 121 |  | 130 |  |  | (9 | ) | (7 | )%
Transportation segment total |  | 4,244 |  | 3,840 |  |  | 404 |  | 11 | %

(1) Revenues and costs and expenses include intersegment amounts.

(2) Field operating costs and Segment general and administrative expenses exclude equity-indexed compensation expense, which is presented separately in the table above.

(3) 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.

(4) Volumes associated with assets employed through acquisitions and capital expansion projects represent total volumes (attributable to our interest) for the number of days we employed the assets divided by the number of days in the period.

(5) Area systems include volumes (attributable to our interest) from our investments in unconsolidated entities.

Tariffs and other fees on our pipeline systems vary by receipt point and delivery point. The segment profit generated by our tariff and other fee-related activities depends 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. Revenue from our pipeline capacity agreements generally reflects a negotiated amount. Revenues and expenses from our Canadian based subsidiaries, which use the Canadian dollar as their functional currency, are translated at the prevailing average exchange rates for each month.

The following is a discussion of items impacting Transportation segment profit and segment profit per barrel for the periods indicated.

30

Net Operating Revenues and Volumes. As noted in the table above, our total Transportation segment revenues, net of trucking costs, and volumes increased for the three months ended March 31, 2015 compared to the three months ended March 31, 2014. Our Transportation segment results for the comparative periods were impacted by the following:

· North American Crude Oil Production and Related Expansion Projects— Production growth from the development of certain North American crude oil resource plays increased volumes and revenues on our existing pipeline systems over the comparative periods presented. We estimate that the impact of increased throughput and related infrastructure projects, most notably on our Eagle Ford and Mid-Continent Area Systems and certain pipelines in our Permian Basin Area Systems, and our recently constructed Sunrise, Pascagoula and Bakken North pipelines, increased our revenues by $20 million.

· Tariff Rates— Revenues on our pipelines are impacted by various tariff rate changes that may occur during the period, which include (i) rate increases or decreases on our intrastate and Canadian pipelines and fees on related system assets, (ii) the indexing of rates on our FERC regulated pipelines or (iii) other negotiated rate changes. We estimate that the net impact of such rate changes on our pipelines increased revenues by $18 million primarily due to tariff rate increases on certain of our Canadian crude oil pipelines and incremental fees on related system assets, and, to a much lesser extent, the FERC indexing effective July 1, 2014 and rate increases on our intrastate pipelines.

· Loss Allowance Revenue— As is common in the pipeline transportation industry, our tariffs incorporate a loss allowance factor that is intended to offset losses due to evaporation, measurement and other losses in transit. We value the variance of allowance volumes to actual losses at the estimated net realizable value (including the impact of gains and losses from derivative-related activities) at the time the variance occurred and the result is recorded as either an increase or decrease to tariff revenues. The loss allowance revenue decreased by $9 million primarily due to a lower average realized price per barrel, partially offset by higher volumes.

· Foreign Exchange Impact —We estimate that revenues from our Canadian pipeline systems and trucking operations were unfavorably impacted by $11 million for the three months ended March 31, 2015 compared to the three months ended March 31, 2014 due to the depreciation of CAD relative to USD.

Field Operating Costs. Field operating costs (excluding equity-indexed compensation expense) increased during the three months ended March 31, 2015 compared to the three months ended March 31, 2014 primarily due to increased salary and related expenses and higher property tax expense associated with the growth and capital expansion in the segment. The increase in operating costs for the comparative quarter ended periods was partially offset by lower maintenance and repairs cost and a $4 million favorable impact of foreign exchange.

Equity-Indexed Compensation Expense. On a consolidated basis across all segments, equity-indexed compensation expense decreased for the three months ended March 31, 2015 compared to the same period in 2014 primarily due to the impact of the decrease in unit price during the period compared to the impact of the increase in unit price for the same period in 2014.

Allocations of equity-indexed compensation expense vary over time (i) between field operating costs and general and administrative expenses and (ii) between segments and could result in variances in those expense categories or segments that differ from the consolidated variance explanations above. See Note 16 to our Consolidated Financial Statements included in Part IV of our 2014 Annual Report on Form 10-K for additional information regarding our equity-indexed compensation plans.

Equity Earnings in Unconsolidated Entities. The favorable variance in equity earnings in unconsolidated entities for the three months ended March 31, 2015 compared to the three months ended March 31, 2014 was primarily driven by (i) earnings from our 50% interest in BridgeTex, which we acquired in November 2014, (ii) increased throughput on the White Cliffs pipeline due to an expansion of the pipeline that was placed into service in July 2014 and (iii) increased throughput on the Eagle Ford pipeline as a result of increased crude oil production, as discussed in “Net Operating Revenues and Volumes” above.

31

Facilities Segment

Our Facilities segment operations generally consist of fee-based activities associated with providing storage, terminalling and throughput services for crude oil, refined products, NGL and natural gas, as well as NGL fractionation and isomerization services and natural gas and condensate processing services. The Facilities segment generates revenue through a combination of month-to-month and multi-year agreements and processing arrangements. Revenues and expenses from our Canadian based subsidiaries, which use the Canadian dollar as their functional currency, are translated at the prevailing average exchange rates for each month.

The following tables set forth our operating results from our Facilities segment for the periods indicated:

|  | Three Months Ended |  |  | Favorable/(Unfavorable) |
Operating Results (1) |  | March 31, |  |  | Variance |
(in millions, except per barrel data) |  | 2015 |  | 2014 |  |  | $ |  | % |
Revenues |  | $ | 257 |  | $ | 299 |  |  | $ | (42 | ) | (14 | )%
Storage related costs (natural gas related) |  | (4 | ) | (26 | ) |  | 22 |  | 85 | %
Field operating costs (2) |  | (91 | ) | (97 | ) |  | 6 |  | 6 | %
Equity-indexed compensation expense - operations |  | (1 | ) | (1 | ) |  | — |  | — | %
Segment general and administrative expenses (2) (3) |  | (15 | ) | (13 | ) |  | (2 | ) | (15 | )%
Equity-indexed compensation expense - general and administrative |  | (4 | ) | (8 | ) |  | 4 |  | 50 | %
Segment profit |  | $ | 142 |  | $ | 154 |  |  | $ | (12 | ) | (8 | )%
Maintenance capital |  | $ | 15 |  | $ | 10 |  |  | $ | (5 | ) | (50 | )%
Segment profit per barrel |  | $ | 0.38 |  | $ | 0.42 |  |  | $ | (0.04 | ) | (10 | )%

|  | Three Months Ended |  |  | Favorable/(Unfavorable) |
|  | March 31, |  |  | Variance |
Volumes (4) |  | 2015 |  | 2014 |  |  | Volumes |  | % |
Crude oil, refined products and NGL terminalling and storage (average monthly capacity in millions of barrels) |  | 99 |  | 95 |  |  | 4 |  | 4 | %
Rail load / unload volumes (average volumes in thousands of barrels per day) |  | 206 |  | 229 |  |  | (23 | ) | (10 | )%
Natural gas storage (average monthly working capacity in billions of cubic feet) |  | 97 |  | 97 |  |  | — |  | — | %
NGL fractionation (average volumes in thousands of barrels per day) |  | 102 |  | 92 |  |  | 10 |  | 11 | %
Facilities segment total (average monthly volumes in millions of barrels) (5) |  | 124 |  | 121 |  |  | 3 |  | 2 | %

(1) Revenues and costs and expenses include intersegment amounts.

(2) Field operating costs and Segment general and administrative expenses exclude equity-indexed compensation expense, which is presented separately in the table above.

(3) 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.

(4) Volumes associated with assets employed through acquisitions and capital expansion projects represent total volumes for the number of months we employed the assets divided by the number of months in the period.

(5) Facilities segment total is calculated as the sum of: (i) crude oil, refined products and NGL terminalling and storage capacity; (ii) rail load and unload volumes multiplied by the number of days in the period and divided by the number of months in the period; (iii) 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 (iv) NGL fractionation volumes multiplied by the number of days in the period and divided by the number of months in the period.

32

Table of Contents

The following is a discussion of items impacting Facilities segment profit and segment profit per barrel for the periods indicated.

Net Operating Revenues and Volumes. As noted in the table above, our Facilities segment revenues, less storage related costs, decreased during the three months ended March 31, 2015 as compared to the same period in 2014, while total volumes increased slightly. Our Facilities segment results for the comparative periods were impacted by:

· Rail Terminals —Revenues from our rail activities decreased by $9 million due to lower rail fees related to the movement of certain volumes of Bakken crude oil, primarily to our St. James rail terminal, partially offset by volumes and revenues from our Bakersfield rail terminal that came online in the fourth quarter of 2014.

· NGL Storage, NGL Fractionation and Natural Gas Processing Activities — Revenues from our Canadian NGL storage, NGL fractionation and natural gas processing activities decreased by $7 million primarily due to unfavorable foreign currency effects of $9 million from the depreciation of CAD relative to USD. Excluding foreign currency effects, revenue increases from higher facility fees at certain of our fractionation and gas processing facilities were largely offset by lower physical processing gains related to component mix at our fractionation facilities and significantly lower NGL prices during the first quarter of 2015.

Field Operating Costs. Field operating costs (excluding equity-indexed compensation expense) decreased during the three months ended March 31, 2015 compared to the three months ended March 31, 2014 primarily due to lower gas and power costs. Other decreases in maintenance and repairs costs and certain joint venture expenses were offset by increases in property taxes and salary and related expenses primarily associated with new rail facilities. The decrease in field operating costs was also impacted by a $4 million favorable foreign exchange effect.

Maintenance Capital. The increase in maintenance capital for the three months ended March 31, 2015 compared to the three months ended March 31, 2014 was primarily due to various tank projects and equipment replacements.

Supply and Logistics Segment

Our revenues from supply and logistics activities reflect the sale of gathered and bulk-purchased crude oil, as well as sales of NGL volumes purchased from suppliers and natural gas sales attributable to the activities performed by our natural gas storage commercial optimization group. Generally, we expect our segment profit to increase or decrease directionally with (i) increases or decreases in our Supply and Logistics segment volumes (which consist of lease gathering crude oil purchase volumes and NGL sales volumes), (ii) demand for lease gathering services we provide producers and (iii) the overall volatility and strength or weakness of market conditions and the allocation of our assets among our various risk management strategies. In addition, the execution of our risk management strategies in conjunction with our assets can provide upside in certain markets. We do not anticipate that future changes in revenues resulting from variances in commodity prices will be a primary driver of segment profit.

The following tables set forth our operating results from our Supply and Logistics segment for the periods indicated:

|  | Three Months Ended |  |  | Favorable/(Unfavorable) |
Operating Results (1) |  | March 31, |  |  | Variance |
(in millions, except per barrel data) |  | 2015 |  | 2014 |  |  | $ |  | % |
Revenues |  | $ | 5,634 |  | $ | 11,368 |  |  | $ | (5,734 | ) | (50 | )%
Purchases and related costs (2) |  | (5,353 | ) | (10,975 | ) |  | 5,622 |  | 51 | %
Field operating costs (3) |  | (118 | ) | (106 | ) |  | (12 | ) | (11 | )%
Equity-indexed compensation expense - operations |  | (1 | ) | (1 | ) |  | — |  | — | %
Segment general and administrative expenses (3) (4) |  | (27 | ) | (26 | ) |  | (1 | ) | (4 | )%
Equity-indexed compensation expense - general and administrative |  | (5 | ) | (11 | ) |  | 6 |  | 55 | %
Segment profit |  | $ | 130 |  | $ | 249 |  |  | $ | (119 | ) | (48 | )%
Maintenance capital |  | $ | 2 |  | $ | 2 |  |  | $ | — |  | — | %
Segment profit per barrel |  | $ | 1.14 |  | $ | 2.37 |  |  | $ | (1.23 | ) | (52 | )%

33

Table of Contents

|  | Three Months Ended |  |  | Favorable/(Unfavorable) |
Average Daily Volumes |  | March 31, |  |  | Variance |
(in thousands of barrels per day) |  | 2015 |  | 2014 |  |  | Volumes |  | % |
Crude oil lease gathering purchases |  | 981 |  | 893 |  |  | 88 |  | 10 | %
NGL sales |  | 286 |  | 273 |  |  | 13 |  | 5 | %
Supply and Logistics segment total |  | 1,267 |  | 1,166 |  |  | 101 |  | 9 | %

(1) Revenues and costs include intersegment amounts.

(2) Purchases and related costs include interest expense (related to hedged inventory purchases) of $1 million and $2 million for the three months ended March 31, 2015 and 2014, respectively.

(3) Field operating costs and Segment general and administrative expenses exclude equity-indexed compensation expense, which is presented separately in the table above.

(4) 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.

The following table presents the range of the NYMEX WTI benchmark price of crude oil during the periods indicated (in dollars per barrel):

|  | NYMEX WTI |
|  | Crude Oil Price |
|  | Low |  | High |
Three months ended March 31, 2015 |  | $ | 43 |  | $ | 54 |
Three months ended March 31, 2014 |  | $ | 92 |  | $ | 105 |

Because the commodities that we buy and sell are generally indexed to the same pricing indices for both the 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. The absolute amount of our revenues and purchases decreased for the three months ended March 31, 2015 due to lower crude oil and NGL prices relative to the comparative 2014 period.

Generally, we expect a base level of earnings from our Supply and Logistics segment from the assets employed by this segment. This base level may be optimized and enhanced when there is a high level of market volatility, favorable basis differentials and/or a steep contango or backwardated market structure. Also, 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.

The following is a discussion of items impacting Supply and Logistics segment profit and segment profit per barrel for the periods indicated.

Net Operating Revenues and Volumes. Our Supply and Logistics segment revenues, net of purchases and related costs, decreased for the three months ended March 31, 2015 compared to the three months ended March 31, 2014. The following summarizes the more significant items in the comparative periods:

· Crude Oil Operations — Net revenues from our crude oil supply and logistics activities decreased for the three months ended March 31, 2015 as compared to the same period in 2014, primarily driven by the compression of certain differentials during the 2015 period, which resulted in fewer opportunities to capture above-baseline margins as compared to the first quarter of 2014. Such unfavorable results were partially offset by incremental lease gathering revenues from higher volumes.

· Natural Gas Storage Commercial Optimization — During the first quarter of 2014, our natural gas storage commercial optimization activities were unfavorably impacted by costs incurred to manage deliverability requirements in conjunction with the extended period of severe cold weather. We did not incur similar costs during the first quarter of 2015 and, therefore, we experienced more favorable results from our natural gas storage activities in the 2015 period as compared to the first quarter of 2014.

· NGL Operations — Net revenues from our NGL operations increased for the three months ended March 31, 2015 as compared to the three months ended March 31, 2014. The favorable variance was driven by higher sales volumes during the end of our winter heating season, partially offset by increased facility fees.

34

Table of Contents

· Impact from Certain Derivative Activities, Net of Inventory Valuation Adjustments — The mark-to-market of certain of our derivative activities impacted our net revenues as shown in the table below (in millions):

|  | Three Months Ended |  |  |
|  | March 31, |  | Variance |
|  | 2015 |  | 2014 |  | $ |  | % |
Gains/(losses) from certain derivative activities net of inventory valuation adjustments (1) |  | $ | (93 | ) | $ | 66 |  | $ | (159 | ) | (241 | )%

(1) 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 certain 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.

· Long-Term Inventory Costing Adjustment — Our operating results for the first quarter of 2015 were unfavorably impacted by a $38 million reduction in the value of our long-term crude oil and NGL inventory pools resulting from the decrease in the price of crude oil and NGL during the period. This costing adjustment is related to inventory necessary to meet our minimum inventory requirements in third-party assets and other working inventory that is needed for our commercial operations. We consider this inventory necessary to conduct our operations and we intend to carry this inventory for the foreseeable future.

· Foreign Exchange — During the three months ended March 31, 2015 and 2014, there were fluctuations in the value of CAD to USD, resulting in net foreign exchange gains on U.S. denominated net assets within our Canadian operations of $32 million.

Field Operating Costs. The increase in field operating costs (excluding equity-indexed compensation expense) for the three months ended March 31, 2015 compared to the three months ended March 31, 2014 was primarily due to increases in driver salaries and related expenses and trucking costs associated with higher crude oil lease gathering purchases volumes. The increase in field operating costs for the comparative periods was partially offset by a reduction in fuel costs due to lower average diesel fuel cost per gallon.

Other Income and Expenses

Depreciation and Amortization

Depreciation and amortization expense increased for the three months ended March 31, 2015 compared to the three months ended March 31, 2014, primarily due to various internal growth projects completed since March 31, 2014.

Interest Expense

The increase in interest expense for the three months ended March 31, 2015 over the three months ended March 31, 2014 was primarily due to a higher weighted average debt balance driven by an aggregate of $2.6 billion of senior notes issued in 2014.

Income Tax Expense

Income tax expense decreased for the three months ended March 31, 2015 compared to the three months ended March 31, 2014 primarily as a result of a deferred income tax benefit associated with derivative mark-to-market losses in our Canadian operations. This benefit was partially offset by higher current income tax expense as a result of increased year-over-year taxable earnings from our Canadian operations.

35

Table of Contents

Liquidity and Capital Resources

General

Our primary sources of liquidity are (i) cash flow from operating activities, (ii) borrowings under our credit facilities or commercial paper program and (iii) funds received from sales of equity and debt securities. 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 and other expenses and interest payments on outstanding debt, (ii) expansion and maintenance activities, (iii) acquisitions of assets or businesses, (iv) repayment of principal on our long-term debt and (v) distributions to our unitholders and general partner. We generally expect to fund our short-term cash requirements through cash flow generated from operating activities and/or borrowings under our commercial paper program or credit facilities. In addition, we generally expect to fund our long-term needs, such as those resulting from expansion activities or acquisitions and refinancing our long-term debt, through a variety of sources (either separately or in combination), which may include the sources mentioned above as funding for short-term needs and/or the issuance of additional equity or debt securities. As of March 31, 2015, we had a working capital deficit of $78 million and approximately $4.4 billion of liquidity available to meet our ongoing operating, investing and financing needs as noted below (in millions):

|  | March 31, 2015 |
Availability under senior unsecured revolving credit facility (1) |  | $ | 1,584 |
Availability under senior secured hedged inventory facility (1) |  | 1,333 |
Availability under senior unsecured 364-day revolving credit facility |  | 1,000 |
Subtotal |  | 3,917 |
Cash and cash equivalents |  | 458 |
Total |  | $ | 4,375 |

(1) Borrowings under our commercial paper program reduce available capacity under the facility. There were no commercial paper borrowings outstanding as of March 31, 2015.

We believe that we have, and will continue to have, the ability to access our commercial paper program and credit facilities, which we use to meet our short-term cash needs. We believe that our financial position remains strong and we have sufficient liquidity; however, extended disruptions in the financial markets and/or energy price volatility that adversely affect our business may have a materially adverse effect on our financial condition, results of operations or cash flows. Also, see Item 1A. “Risk Factors” of our 2014 Annual Report on Form 10-K for further discussion regarding such risks that may impact our liquidity and capital resources. Usage of our credit facilities, certain of which provide the backstop for our commercial paper program, is subject to ongoing compliance with covenants. As of March 31, 2015, we were in compliance with all such covenants.

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 “Liquidity and Capital Resources—Cash Flow from Operating Activities” under Item 7 of our 2014 Annual Report on Form 10-K.

Net cash provided by operating activities for the first three months of 2015 and 2014 was $732 million and $822 million, respectively, and primarily resulted from earnings from our operations. Additionally, as discussed further below, changes in our inventory levels during these periods impacted our cash flow from operating activities.

During the three months ended March 31, 2015, we decreased the volume of inventory that we held, primarily due to the seasonal sale of NGL and natural gas inventory. The net proceeds received from liquidation of such inventory during the quarter were used to repay borrowings under our commercial paper program and favorably impacted cash flow from operating activities. Additionally, lower inventory levels were further impacted by lower prices for such inventory stored at the end of the quarter compared to the prior year end. However, the favorable effects from liquidation of our NGL and natural gas inventory were partially offset by increased levels of crude oil inventory purchased and stored due to contango market conditions.

During the first three months of 2014, we decreased the volume of our inventory, primarily due to the sale of NGL and natural gas inventory related to high demand for product used for heating during the extended 2014 winter season. The net proceeds received from liquidation of such inventory were used to repay borrowings under our commercial paper program and favorably impacted cash flow from operating activities.

36

Table of Contents

Acquisitions and Capital Expenditures

In addition to operating needs discussed above, we also use cash for our acquisition activities and capital projects. We have made and will continue to make capital expenditures for acquisitions, expansion capital and maintenance capital.

2015 Capital Projects. “See —Acquisitions and Capital Projects” for detail of our projected capital expenditures for the year ending December 31, 2015. We expect the majority of funding for our remaining 2015 capital program will be provided by borrowings under our commercial paper program as well as through proceeds received from our March 2015 underwritten equity offering.

Equity and Debt Financing Activities

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

Registration Statements. We periodically access the capital markets for both equity and debt financing. We have filed with the SEC a universal shelf registration statement that, subject to effectiveness at the time of use, allows us to issue up to an aggregate of $2.0 billion of debt or equity securities (“Traditional Shelf”). All issuances of equity securities associated with our continuous offering program, as discussed further below, have been issued pursuant to the Traditional Shelf. At March 31, 2015, we had approximately $555 million of unsold securities available under the Traditional Shelf. We also have access to a universal shelf registration statement (“WKSI Shelf”), which provides us with the ability to offer and sell an unlimited amount of debt and equity securities, subject to market conditions and our capital needs. The March 2015 underwritten equity offering, as discussed further below, was conducted under our WKSI Shelf.

Continuous Offering Program. During the three months ended March 31, 2015, we issued an aggregate of approximately 1.1 million common units under our continuous offering program, generating proceeds of $59 million, including our general partner’s proportionate capital contribution of $1 million, net of $1 million of commissions to our sales agents. The net proceeds from sales were used for general partnership purposes.

Underwritten Offering. In March 2015, we completed an underwritten public offering of 21.0 million common units generating net proceeds of approximately $1.1 billion, including our general partner’s proportionate capital contribution of $21 million and net of costs associated with the offering. We used a portion of the net proceeds from this offering to repay outstanding borrowings under our commercial paper program and for general partnership purposes, and we intend to use the remaining net proceeds for general partnership purposes, including expenditures for our 2015 capital program.

Credit Agreements, Commercial Paper Program and Indentures. Our credit agreements (which impact our ability to access our commercial paper program because they provide the backstop that supports our short-term credit ratings) and the indentures governing our senior notes contain cross-default provisions. A default under our credit agreements would permit the lenders to accelerate the maturity of the outstanding debt. As long as we are in compliance with the provisions in our credit agreements, our ability to make distributions of available cash is not restricted. We were in compliance with the covenants contained in our credit agreements and indentures as of March 31, 2015.

During the three months ended March 31, 2015 and 2014, we had net repayments on our credit agreements and commercial paper program of $734 million and $128 million, respectively. The net repayments during both periods resulted primarily from cash flow from operating activities, including sales of NGL and natural gas inventory that was liquidated during the periods, as well as cash received from our equity activities.

In January 2015, we entered into a new $1.0 billion, 364-day senior unsecured credit agreement. Borrowings, if any, accrue interest based, at our election, on either the Eurocurrency Rate or the Base Rate, as defined in the agreement, in each case plus a margin based on our credit rating at the applicable time.

Our $150 million, 5.25% senior notes will mature in June 2015, and our $400 million, 3.95% senior notes will mature in September 2015. We intend to use borrowings under our commercial paper program to repay these senior notes when they mature.

37

Table of Contents

Distributions Paid to Our Unitholders, General Partner and Noncontrolling Interests

Distributions to our unitholders and general partner. We distribute 100% of our available cash within 45 days following the end of each quarter to unitholders of record and to our general partner. 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. On May 15, 2015, we will pay a quarterly distribution of $0.6850 per limited partner unit. This distribution represents a year-over-year distribution increase of approximately 8.7%. See Note 7 to our Condensed Consolidated Financial Statements for details of distributions paid. Also, see Item 5. “Market for Registrant’s Common Units, Related Unitholder Matters and Issuer Purchases of Equity Securities—Cash Distribution Policy” included in our 2014 Annual Report on Form 10-K for additional discussion regarding distributions.

Distributions to noncontrolling interests. We paid $1 million for distributions to noncontrolling interests during each of the three months ended March 31, 2015 and 2014, respectively.

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

Contingencies

For a discussion of contingencies that may impact us, see Note 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 extending up to nine 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. In addition, we enter into similar contractual obligations in conjunction with our natural gas operations. 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 others due under the specified contractual obligations as of March 31, 2015 (in millions):

|  | Remainder of |  |  |  |  |  |  |  |  |  | 2020 and |  |  |
|  | 2015 |  | 2016 |  | 2017 |  | 2018 |  | 2019 |  | Thereafter |  | Total |
Long-term debt, including current maturities and related interest payments (1) |  | $ | 884 |  | $ | 604 |  | $ | 799 |  | $ | 972 |  | $ | 1,188 |  | $ | 10,605 |  | $ | 15,052 |
Leases (2) |  | 127 |  | 185 |  | 165 |  | 143 |  | 118 |  | 533 |  | 1,271 |
Other obligations (3) |  | 472 |  | 394 |  | 71 |  | 43 |  | 29 |  | 175 |  | 1,184 |
Subtotal |  | 1,483 |  | 1,183 |  | 1,035 |  | 1,158 |  | 1,335 |  | 11,313 |  | 17,507 |
Crude oil, natural gas, NGL and other purchases (4) |  | 5,034 |  | 4,137 |  | 3,125 |  | 1,811 |  | 1,325 |  | 3,608 |  | 19,040 |
Total |  | $ | 6,517 |  | $ | 5,320 |  | $ | 4,160 |  | $ | 2,969 |  | $ | 2,660 |  | $ | 14,921 |  | $ | 36,547 |

(1) Includes debt service payments, interest payments due on senior notes and the commitment fee on assumed available capacity under the PAA revolving credit facilities. Although there may be short-term borrowings under the PAA revolving credit facilities and commercial paper program, we historically repay and borrow at varying amounts. As such, we have included only the maximum commitment fee (as if no short-term borrowings were outstanding on the facilities or commercial paper program) in the amounts above.

(2) Leases are primarily for (i) surface rentals, (ii) office rent, (iii) pipeline assets and (iv) trucks, trailers and railcars. Includes both capital and operating leases as defined by FASB guidance.

38

Table of Contents

(3) Includes (i) other long-term liabilities, (ii) storage, processing and transportation agreements and (iii) non-cancelable commitments related to our capital expansion projects, including projected contributions for our share of the capital spending of our equity-method investments. Excludes a non-current liability of approximately $90 million related to derivative activity included in Crude oil, natural gas, NGL and other purchases.

(4) Amounts are primarily based on estimated volumes and market prices based on average activity during March 2015. 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 of crude oil, NGL and natural gas. Additionally, we issue letters of credit to support insurance programs and construction activities. At March 31, 2015 and December 31, 2014, we had outstanding letters of credit of approximately $83 million and $87 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 2014 Annual Report on Form 10-K.

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:

· failure to implement or capitalize, or delays in implementing or capitalizing, on planned growth projects;

· declines in the volume of crude oil, refined product and NGL shipped, processed, purchased, stored, fractionated and/or gathered at or through the use of our facilities, whether due to declines in production from existing oil and gas reserves, failure to develop or slowdown in the development of additional oil and gas reserves, whether from reduced cash flow to fund drilling or the inability to access capital, or other factors;

· unanticipated changes in crude oil 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, refined products and natural gas and resulting changes in pricing conditions or transportation throughput requirements;

· the effects of competition;

· the occurrence of a natural disaster, catastrophe, terrorist attack or other event, including attacks on our electronic and computer systems;

39

Table of Contents

· 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, expansion projects, working capital requirements and the repayment or refinancing of indebtedness;

· weather interference with business operations or project construction, including the impact of extreme weather events or conditions;

· continued creditworthiness of, and performance by, our counterparties, including financial institutions and trading companies with which we do business;

· maintenance of our credit rating and ability to receive open credit from our suppliers and trade counterparties;

· the currency exchange rate of the Canadian dollar;

· the availability of, and our ability to consummate, acquisition or combination opportunities;

· the successful integration and future performance of acquired assets or businesses and the risks associated with operating in lines of business that are distinct and separate from our historical operations;

· the effectiveness of our risk management activities;

· shortages or cost increases of supplies, materials or labor;

· the impact of current and future laws, rulings, governmental regulations, accounting standards and statements, and related interpretations;

· non-utilization of our assets and facilities;

· increased costs, or lack of availability, of insurance;

· fluctuations in the debt and equity markets, including the price of our units at the time of vesting under our long-term incentive plans;

· risks related to the development and operation of our facilities, including our ability to satisfy our contractual obligations to our customers at our facilities;

· factors affecting demand for natural gas and natural gas storage services and rates;

· general economic, market or business conditions and the amplification of other risks caused by volatile financial markets, capital constraints and pervasive liquidity concerns; and

· other factors and uncertainties inherent in the transportation, storage, terminalling and marketing of crude oil and refined products, 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 2014 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.

40

Table of Contents

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to various market risks, including (i) commodity price risk, (ii) interest rate risk and (iii) currency exchange rate risk. We use various derivative instruments to manage such risks and, in certain circumstances, to realize incremental margin during volatile market conditions. Our risk management policies and procedures are designed to help ensure that our hedging activities address our risks by monitoring our exchange-cleared and over-the-counter positions, as well as physical volumes, grades, locations, delivery schedules and storage capacity. We have a risk management function that has direct responsibility and authority for our risk policies, related controls around commercial activities and certain aspects of corporate risk management. Our risk management function also approves all new risk management strategies through a formal process. The following discussion addresses each category of risk.

Commodity Price Risk

We use derivative instruments to hedge commodity price risk associated with the following commodities:

· Crude oil

We utilize crude oil derivatives to hedge commodity price risk inherent in our Supply and Logistics and Transportation segments. Our objectives for these derivatives include hedging anticipated purchases and sales, stored inventory, and storage capacity utilization. We manage these exposures with various instruments including exchange-traded and over-the-counter futures, forwards, swaps and options.

· Natural gas

We utilize natural gas derivatives to hedge commodity price risk inherent in our Supply and Logistics and Facilities segments. Our objectives for these derivatives include hedging anticipated purchases and sales and managing our anticipated base gas requirements. We manage these exposures with various instruments including exchange-traded futures, swaps and options.

· NGL and other

We utilize NGL derivatives, primarily butane and propane derivatives, to hedge commodity price risk inherent in our Supply and Logistics segment. Our objectives for these derivatives include hedging anticipated purchases and sales and stored inventory. We manage these exposures with various instruments including exchange-traded and over-the-counter futures, forwards, swaps and options.

See Note 8 to our Condensed Consolidated Financial Statements for further discussion regarding our hedging strategies and objectives.

Our policy is to (i) purchase only product for which we have a market, (ii) hedge our purchase and sales contracts so that price fluctuations do not materially affect our operating income and (iii) not acquire and hold physical inventory or other derivative instruments for the purpose of speculating on outright commodity price changes, as these activities could expose us to significant losses.

The fair value of our commodity derivatives and the change in fair value as of March 31, 2015 that would be expected from a 10% price increase or decrease is shown in the table below (in millions):

|  |  |  | Effect of 10% |  | Effect of 10% |
|  | Fair Value |  | Price Increase |  | Price Decrease |
Crude oil |  | $ | 48 |  | $ | (31 | ) | $ | 31 |
Natural gas |  | (24 | ) | $ | 2 |  | $ | (2 | )
NGL and other |  | 120 |  | $ | (17 | ) | $ | 17 |
Total fair value |  | $ | 144 |  |  |  |  |

41

Table of Contents

The fair values presented in the table above reflect the sensitivity of the derivative instruments only and do not include the effect of the underlying hedged commodity. Price-risk sensitivities were calculated by assuming an across-the-board 10% increase or decrease in price regardless of term or historical relationships between the contractual price of the instruments and the underlying commodity price. In the event of an actual 10% change in near-term commodity prices, the fair value of our derivative portfolio would typically change less than that shown in the table as changes in near-term prices are not typically mirrored in delivery months further out.

Interest Rate Risk

Our use of variable rate debt and any forecasted issuances of fixed rate debt expose us to interest rate risk. Therefore, from time to time we use interest rate derivatives to hedge interest rate risk associated with anticipated debt issuances and, in certain cases, outstanding debt instruments. All of our senior notes are fixed rate notes and thus are not subject to interest rate risk. We did not have any variable rate debt outstanding as of March 31, 2015. The average interest rate on variable rate debt that was outstanding during the three months ended March 31, 2015 was 0.4%, based upon rates in effect during such period. The fair value of our interest rate derivatives is a liability of $144 million as of March 31, 2015. A 10% increase in the forward LIBOR curve as of March 31, 2015 would result in an increase of $57 million to the fair value of our interest rate derivatives. A 10% decrease in the forward LIBOR curve as of March 31, 2015 would result in a decrease of $57 million to the fair value of our interest rate derivatives. See Note 8 to our Condensed Consolidated Financial Statements for a discussion of our interest rate risk hedging activities.

Currency Exchange Rate Risk

We use foreign currency derivatives to hedge foreign currency exchange rate risk associated with our exposure to fluctuations in the USD-to-CAD exchange rate. Because a significant portion of our Canadian business is conducted in CAD and, at times, a portion of our debt is denominated in CAD, we use certain financial instruments to minimize the risks of unfavorable changes in exchange rates. These instruments include foreign currency exchange contracts, forwards and options. The fair value of our foreign currency derivatives is a liability of $4 million as of March 31, 2015. A 10% increase in the exchange rate (USD-to-CAD) would result in a decrease of $15 million to the fair value of our foreign currency derivatives. A 10% decrease in the exchange rate (USD-to-CAD) would result in an increase of $15 million to the fair value of our foreign currency derivatives. See Note 8 to our Condensed Consolidated Financial Statements for a discussion of our currency exchange rate risk hedging.

Item 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

We maintain written disclosure controls and procedures, which we refer to as our “DCP.” Our DCP is designed to ensure that information required to be disclosed by us in reports that we file under the Securities Exchange Act of 1934 (the “Exchange Act”) is (i) recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and (ii) accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, to allow for timely decisions regarding required disclosure.

Applicable SEC rules require an evaluation of the effectiveness of our DCP. Management, under the supervision and with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our DCP as of March 31, 2015, the end of the period covered by this report, and, based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our DCP is effective.

Changes in Internal Control over Financial Reporting

In addition to the information concerning our DCP, we are required to disclose certain changes in internal control over financial reporting. There have been no changes in our internal control over financial reporting during the first quarter of 2015 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Certifications

The certifications of our Chief Executive Officer and Chief Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a) are filed with this report as Exhibits 31.1 and 31.2. The certifications of our Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. 1350 are furnished with this report as Exhibits 32.1 and 32.2.

42

Table of Contents

PART II. OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

The information required by this item is included under the caption “Litigation” in Note 10 to our Condensed Consolidated Financial Statements, and is incorporated herein by reference thereto.

Item 1A. RISK FACTORS

For a discussion regarding our risk factors, see Item 1A of our 2014 Annual Report on Form 10-K. Those risks and uncertainties are not the only ones facing us and there may be additional matters of which we are unaware or that we currently consider immaterial. All of those risks and uncertainties could adversely affect our business, financial condition and/or results of operations.

Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

Item 3. DEFAULTS UPON SENIOR SECURITIES

None.

Item 4. MINE SAFETY DISCLOSURES

None.

Item 5. OTHER INFORMATION

None.

Item 6. EXHIBITS

The exhibits listed on the accompanying Exhibit Index are filed or incorporated by reference as part of this report, and such Exhibit Index is incorporated herein by reference.

43

Table of Contents

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| PLAINS ALL AMERICAN PIPELINE, L.P.
| By: | PAA GP LLC,
|  | its general partner
| By: | Plains AAP, L.P.,
|  | its sole member
| By: | PLAINS ALL AMERICAN GP LLC,
|  | its general partner
| By: | /s/ Greg L. Armstrong
|  | Greg L. Armstrong,
|  | Chairman of the Board, Chief Executive Officer and Director of Plains All American GP LLC
|  | (Principal Executive Officer)
May 8, 2015 |  |
| By: | /s/ Al Swanson
|  | Al Swanson,
|  | Executive Vice President and Chief Financial Officer of Plains All American GP LLC
|  | (Principal Financial Officer)
May 8, 2015 |  |
| By: | /s/ Chris Herbold
|  | Chris Herbold,
|  | Vice President —Accounting and Chief Accounting Officer of Plains All American GP LLC
|  | (Principal Accounting Officer)
May 8, 2015 |  |

44

Table of Contents

EXHIBIT INDEX

3.1 |  | — |  | Fourth Amended and Restated Agreement of Limited Partnership of Plains All American Pipeline, L.P. dated as of May 17, 2012 (incorporated by reference to Exhibit 3.1 to our Current Report on Form 8-K filed May 23, 2012).
3.2 |  | — |  | Amendment No. 1 dated October 1, 2012 to the Fourth Amended and Restated Agreement of Limited Partnership of Plains All American Pipeline, L.P. (incorporated by reference to Exhibit 3.1 to our Current Report on Form 8-K filed October 2, 2012).
3.3 |  | — |  | Amendment No. 2 dated December 31, 2013 to the Fourth Amended and Restated Agreement of Limited Partnership of Plains All American Pipeline, L.P. (incorporated by reference to Exhibit 3.1 to our Current Report on Form 8-K filed December 31, 2013).
3.4 |  | — |  | Third Amended and Restated Agreement of Limited Partnership of Plains Marketing, L.P. dated as of April 1, 2004 (incorporated by reference to Exhibit 3.2 to our Quarterly Report on Form 10-Q for the quarter ended March 31, 2004).
3.5 |  | — |  | Amendment No. 1 dated December 31, 2010 to the Third Amended and Restated Agreement of Limited Partnership of Plains Marketing, L.P. (incorporated by reference to Exhibit 3.9 to our Annual Report on Form 10-K for the year ended December 31, 2010).
3.6 |  | — |  | Amendment No. 2 dated January 1, 2011 to the Third Amended and Restated Agreement of Limited Partnership of Plains Marketing, L.P. (incorporated by reference to Exhibit 3.10 to our Annual Report on Form 10-K for the year ended December 31, 2010).
3.7 |  | — |  | Amendment No. 3 dated June 30, 2011 to the Third Amended and Restated Agreement of Limited Partnership of Plains Marketing, L.P. (incorporated by reference to Exhibit 3.7 to our Annual Report on Form 10-K for the year ended December 31, 2013).
3.8 |  | — |  | Amendment No. 4 dated January 1, 2013 to the Third Amended and Restated Agreement of Limited Partnership of Plains Marketing, L.P (incorporated by reference to Exhibit 3.8 to our Annual Report on Form 10-K for the year ended December 31, 2013).
3.9 |  | — |  | Third Amended and Restated Agreement of Limited Partnership of Plains Pipeline, L.P. dated as of April 1, 2004 (incorporated by reference to Exhibit 3.3 to our Quarterly Report on Form 10-Q for the quarter ended March 31, 2004).
3.10 |  | — |  | Amendment No. 1 dated January 1, 2013 to the Third Amended and Restated Agreement of Limited Partnership of Plains Pipeline, L.P. (incorporated by reference to Exhibit 3.10 to our Annual Report on Form 10-K for the year ended December 31, 2013).
3.11 |  | — |  | Sixth Amended and Restated Limited Liability Company Agreement of Plains All American GP LLC dated October 21, 2013 (incorporated by reference to Exhibit 3.2 to our Current Report on Form 8-K filed October 25, 2013).
3.12 |  | — |  | Seventh Amended and Restated Limited Partnership Agreement of Plains AAP, L.P. dated October 21, 2013 (incorporated by reference to Exhibit 3.1 to our Current Report on Form 8-K filed October 25, 2013).
3.13 |  | — |  | Amendment No. 1 dated December 31, 2013 to the Seventh Amended and Restated Limited Partnership Agreement of Plains AAP, L.P. (incorporated by reference to Exhibit 3.2 to our Current Report on Form 8-K filed December 31, 2013).
3.14 |  | — |  | Certificate of Incorporation of PAA Finance Corp (f/k/a Pacific Energy Finance Corporation, successor-by-merger to PAA Finance Corp.) (incorporated by reference to Exhibit 3.10 to our Annual Report on Form 10-K for the year ended December 31, 2006).

45

Table of Contents

3.15 |  | — |  | Bylaws of PAA Finance Corp (f/k/a Pacific Energy Finance Corporation, successor-by-merger to PAA Finance Corp.) (incorporated by reference to Exhibit 3.11 to our Annual Report on Form 10-K for the year ended December 31, 2006).
3.16 |  | — |  | Limited Liability Company Agreement of PAA GP LLC dated December 28, 2007 (incorporated by reference to Exhibit 3.3 to our Current Report on Form 8-K filed January 4, 2008).
4.1 |  | — |  | Indenture dated September 25, 2002 among Plains All American Pipeline, L.P., PAA Finance Corp. and Wachovia Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Quarterly Report on Form 10-Q for the quarter ended September 30, 2002).
4.2 |  | — |  | Fourth Supplemental Indenture (Series A and Series B 5.875% Senior Notes due 2016) dated August 12, 2004 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and Wachovia Bank, National Association, as trustee (incorporated by reference to Exhibit 4.5 to our Registration Statement on Form S-4, File No. 333-121168).
4.3 |  | — |  | Fifth Supplemental Indenture (Series A and Series B 5.25% Senior Notes due 2015) dated May 27, 2005 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and Wachovia Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed May 31, 2005).
4.4 |  | — |  | Sixth Supplemental Indenture (Series A and Series B 6.70% Senior Notes due 2036) dated May 12, 2006 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and Wachovia Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed May 12, 2006).
4.5 |  | — |  | Ninth Supplemental Indenture (Series A and Series B 6.125% Senior Notes due 2017) dated October 30, 2006 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed October 30, 2006).
4.6 |  | — |  | Tenth Supplemental Indenture (Series A and Series B 6.650% Senior Notes due 2037) dated October 30, 2006 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed October 30, 2006).
4.7 |  | — |  | Thirteenth Supplemental Indenture (Series A and Series B 6.50% Senior Notes due 2018) dated April 23, 2008 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed April 23, 2008).
4.8 |  | — |  | Fifteenth Supplemental Indenture (8.75% Senior Notes due 2019) dated April 20, 2009 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed April 20, 2009).
4.9 |  | — |  | Seventeenth Supplemental Indenture (5.75% Senior Notes due 2020) dated September 4, 2009 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed September 4, 2009).
4.10 |  | — |  | Eighteenth Supplemental Indenture (3.95% Senior Notes due 2015) dated July 14, 2010 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed July 13, 2010).

46

Table of Contents

4.11 |  | — |  | Nineteenth Supplemental Indenture (5.00% Senior Notes due 2021) dated January 14, 2011 among Plains All American Pipeline, L.P., PAA Finance Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed January 11, 2011).
4.12 |  | — |  | Twentieth Supplemental Indenture (3.65% Senior Notes due 2022) dated March 22, 2012 among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed March 26, 2012).
4.13 |  | — |  | Twenty-First Supplemental Indenture (5.15% Senior Notes due 2042) dated March 22, 2012 among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed March 26, 2012).
4.14 |  | — |  | Twenty-Second Supplemental Indenture (2.85% Senior Notes due 2023) dated December 10, 2012, by and among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed December 12, 2012).
4.15 |  | — |  | Twenty-Third Supplemental Indenture (4.30% Senior Notes due 2043) dated December 10, 2012, by and among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed December 12, 2012).
4.16 |  | — |  | Twenty-Fourth Supplemental Indenture (3.85% Senior Notes due 2023) dated August 15, 2013, by and among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed August 15, 2013).
4.17 |  | — |  | Twenty-Fifth Supplemental Indenture (4.70% Senior Notes due 2044) dated April 23, 2014, by and among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed April 29, 2014).
4.18 |  | — |  | Twenty-Sixth Supplemental Indenture (3.60% Senior Notes due 2024) dated September 9, 2014, by and among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed September 11, 2014).
4.19 |  | — |  | Twenty-Seventh Supplemental Indenture (2.60% Senior Notes due 2019) dated December 9, 2014, by and among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed December 11, 2014).
4.20 |  | — |  | Twenty-Eighth Supplemental Indenture (4.90% Senior Notes due 2045) dated December 9, 2014, by and among Plains All American Pipeline, L.P., PAA Finance Corp. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed December 11, 2014).
4.21 |  | — |  | Registration Rights Agreement dated September 3, 2009 by and between Plains All American Pipeline, L.P. and Vulcan Gas Storage LLC (incorporated by reference to Exhibit 4.1 to our Registration Statement on Form S-3, File No. 333-162477).
10.1 |  | — |  | 364-Day Credit Agreement dated January 16, 2015 among Plains All American Pipeline, L.P., as Borrower; Bank of America, N.A., as Administrative Agent; Citibank, N.A., JPMorgan Chase Bank N.A. and Wells Fargo Bank, National Association, as Co-Syndication Agents; DNB Bank ASA, New York Branch and Mizuho Bank, Ltd., as Co-Documentation Agents; the other Lenders party thereto; and Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., DNB Markets, Inc., J.P. Morgan Securities LLC, Mizuho Bank, Ltd. and Wells Fargo Securities, LLC, as Joint Lead Arrangers and Joint Bookrunners (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed January 20, 2015).
12.1 † |  | — |  | Computation of Ratio of Earnings to Fixed Charges.
31.1 † |  | — |  | Certification of Principal Executive Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a).
31.2 † |  | — |  | Certification of Principal Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a).

47

Table of Contents

32.1 †† |  | — |  | Certification of Principal Executive Officer pursuant to 18 U.S.C. 1350.
32.2 †† |  | — |  | Certification of Principal Financial Officer pursuant to 18 U.S.C. 1350.
101.INS† |  | — |  | XBRL Instance Document
101.SCH† |  | — |  | XBRL Taxonomy Extension Schema Document
101.CAL† |  | — |  | XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF† |  | — |  | XBRL Taxonomy Extension Definition Linkbase Document
101.LAB† |  | — |  | XBRL Taxonomy Extension Label Linkbase Document
101.PRE† |  | — |  | XBRL Taxonomy Extension Presentation Linkbase Document

† Filed herewith.

†† Furnished herewith.

48