Consolidated Statements of Cash Flows - USD ($) $ in Thousands |
12 Months Ended | |||||||||||||||||||||||||||||
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Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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Cash flows from operating activities | ||||||||||||||||||||||||||||||
Net income (loss) | [1] | $ 11,098 | $ 453,489 | $ 284,679 | ||||||||||||||||||||||||||
Adjustments to reconcile net income (loss) to net cash provided by operating activities: | ||||||||||||||||||||||||||||||
Depreciation and amortization | [1] | 272,611 | 211,809 | 172,863 | ||||||||||||||||||||||||||
Impairments | [1] | 515,458 | 5,125 | 49,920 | ||||||||||||||||||||||||||
Non-cash equity-based compensation expense | [1] | 4,445 | 4,105 | 3,822 | ||||||||||||||||||||||||||
Deferred income taxes | [1] | 11,346 | 38,682 | 66,246 | ||||||||||||||||||||||||||
Accretion and amortization of long-term obligations, net | [1] | 17,698 | 2,736 | 2,449 | ||||||||||||||||||||||||||
Equity income, net | [1],[2],[3],[4] | (71,251) | (57,836) | (22,948) | ||||||||||||||||||||||||||
Distributions from equity investment earnings | [1],[3] | 82,054 | 62,967 | 17,698 | ||||||||||||||||||||||||||
(Gain) loss on divestiture and other, net | [1],[5] | (57,024) | 9 | 0 | ||||||||||||||||||||||||||
Lower of cost or market inventory adjustments | [1] | 443 | 0 | 0 | ||||||||||||||||||||||||||
Changes in assets and liabilities: | ||||||||||||||||||||||||||||||
(Increase) decrease in accounts receivable, net | [1] | (4,428) | 1,504 | (9,059) | ||||||||||||||||||||||||||
Increase (decrease) in accounts and imbalance payables and accrued liabilities, net | [1] | 1,006 | (35,926) | 35,067 | ||||||||||||||||||||||||||
Change in other items, net | [1] | (647) | 3,998 | (2,824) | ||||||||||||||||||||||||||
Net cash provided by operating activities | [1] | 782,809 | 690,662 | 597,913 | ||||||||||||||||||||||||||
Cash flows from investing activities | ||||||||||||||||||||||||||||||
Capital expenditures | [1] | (637,964) | (805,005) | (852,388) | ||||||||||||||||||||||||||
Investments in equity affiliates | [1] | (11,442) | (64,278) | (294,693) | ||||||||||||||||||||||||||
Distributions from equity investments in excess of cumulative earnings | [1],[3] | 16,244 | [6] | 18,055 | [6] | 4,438 | ||||||||||||||||||||||||
Net cash used in investing activities | [1] | (500,277) | (2,740,175) | (1,858,912) | ||||||||||||||||||||||||||
Cash flows from financing activities | ||||||||||||||||||||||||||||||
Borrowings, net of debt issuance costs | [1] | 889,606 | 1,648,028 | 957,503 | ||||||||||||||||||||||||||
Repayments of debt | [1] | (611,150) | (650,000) | (710,000) | ||||||||||||||||||||||||||
Increase (decrease) in outstanding checks | [1] | (2,666) | 765 | (5,543) | ||||||||||||||||||||||||||
Proceeds from the issuance of common units, net of offering expenses | [1] | 0 | 0 | (2,367) | ||||||||||||||||||||||||||
Distributions to WGP unitholders | [1],[7] | (306,477) | (228,481) | (137,000) | ||||||||||||||||||||||||||
Net contributions from Anadarko | [1] | (49,801) | (16,392) | 265,471 | ||||||||||||||||||||||||||
Above-market component of swap extensions with Anadarko | [1],[7] | 18,449 | 0 | 0 | ||||||||||||||||||||||||||
Net cash provided by (used in) financing activities | [1] | (250,051) | 2,003,605 | 951,528 | ||||||||||||||||||||||||||
Net increase (decrease) in cash and cash equivalents | [1] | 32,481 | (45,908) | (309,471) | ||||||||||||||||||||||||||
Cash and cash equivalents at beginning of period | [1] | 67,213 | [8] | 113,121 | 422,592 | |||||||||||||||||||||||||
Cash and cash equivalents at end of period | [1] | 99,694 | [8] | 67,213 | [8] | 113,121 | ||||||||||||||||||||||||
Supplemental disclosures | ||||||||||||||||||||||||||||||
Net distributions to (contributions from) Anadarko of other assets | [1] | 4,632 | 10,706 | 5,855 | ||||||||||||||||||||||||||
Interest paid, net of capitalized interest | [1] | 94,720 | 67,648 | 47,098 | ||||||||||||||||||||||||||
Taxes paid (reimbursements received) | [1] | 0 | (90) | 552 | ||||||||||||||||||||||||||
Capital lease asset transfer | [1] | 0 | 4,833 | [9] | 0 | |||||||||||||||||||||||||
Delaware Basin JV Gathering LLC [Member] | ||||||||||||||||||||||||||||||
Cash flows from operating activities | ||||||||||||||||||||||||||||||
Net income (loss) | 0 | [10] | 17,309 | [11] | 4,096 | |||||||||||||||||||||||||
Adjustments to reconcile net income (loss) to net cash provided by operating activities: | ||||||||||||||||||||||||||||||
Equity income, net | 0 | [10] | 0 | [11] | 0 | |||||||||||||||||||||||||
Supplemental disclosures | ||||||||||||||||||||||||||||||
Acquisition of DBJV from Anadarko | [1] | 174,276 | 0 | 0 | ||||||||||||||||||||||||||
Chipeta Processing Limited Liability Company [Member] | ||||||||||||||||||||||||||||||
Cash flows from financing activities | ||||||||||||||||||||||||||||||
Contributions from Chipeta noncontrolling interest owner | [1] | 0 | 0 | 2,247 | ||||||||||||||||||||||||||
Distributions to Chipeta noncontrolling interest owner | [1] | (12,187) | (15,149) | (13,127) | ||||||||||||||||||||||||||
Western Gas Partners, LP [Member] | ||||||||||||||||||||||||||||||
Cash flows from financing activities | ||||||||||||||||||||||||||||||
Proceeds from the issuance of common units, net of offering expenses | [1] | 57,353 | 691,178 | 725,050 | ||||||||||||||||||||||||||
Distributions to noncontrolling interest owners of WES | [1] | (233,178) | (176,344) | (130,706) | ||||||||||||||||||||||||||
Western Gas Partners, LP [Member] | Class C Units [Member] | ||||||||||||||||||||||||||||||
Cash flows from financing activities | ||||||||||||||||||||||||||||||
Proceeds from the issuance of WES Class C units | [1] | 0 | 750,000 | 0 | ||||||||||||||||||||||||||
Affiliates [Member] | ||||||||||||||||||||||||||||||
Cash flows from investing activities | ||||||||||||||||||||||||||||||
Contributions in aid of construction costs from affiliates | [1] | 461 | 183 | 617 | ||||||||||||||||||||||||||
Acquisitions | [1] | (10,903) | (379,193) | (476,711) | ||||||||||||||||||||||||||
Proceeds from the sale of assets | [1] | 925 | 402 | 85 | ||||||||||||||||||||||||||
Affiliates [Member] | Western Gas Partners, LP [Member] | ||||||||||||||||||||||||||||||
Cash flows from financing activities | ||||||||||||||||||||||||||||||
Distributions to WGP unitholders | [12] | (2,235) | (1,747) | (755) | ||||||||||||||||||||||||||
Third Parties [Member] | ||||||||||||||||||||||||||||||
Cash flows from investing activities | ||||||||||||||||||||||||||||||
Acquisitions | [1] | (3,514) | (1,523,327) | (240,274) | ||||||||||||||||||||||||||
Proceeds from the sale of assets | [1] | $ 145,916 | $ 12,988 | $ 14 | ||||||||||||||||||||||||||
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