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Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash flows from operating activities: |  |  |
Net (loss) income | $ (2,002,358,000) | $ 430,560,000 | $ 435,152,000
Adjustments to reconcile net (loss) income to net cash provided by operating activities: |  |  |
Accretion expense | 3,939,000 | 4,119,000 | 1,611,000
Depletion, depreciation and amortization | 550,108,000 | 486,664,000 | 364,629,000
Impairment of oil and natural gas properties | 2,039,770,000 | 0 | 0
Stock-based compensation expense | 4,911,000 | 6,799,000 | 6,369,000
Loss (income) from equity investments, net | 210,289,000 | (49,625,000) | 18,513,000
Gain on debt extinguishment | (48,630,000) | 0 | 0
Change in fair value of derivative instruments | (85,230,000) | 65,051,000 | (188,802,000)
Deferred income tax (benefit) expense | (7,563,000) | 1,208,000 | 1,690,000
Amortization of loan costs | 6,328,000 | 6,121,000 | 5,011,000
Gain on sale of equity method investments and other assets | (220,000) | (124,768,000) | (12,523,000)
Distributions from equity method investments | 2,457,000 | 3,206,000 | 0
Changes in operating assets and liabilities: |  |  |
Decrease (increase) in accounts receivable—oil and natural gas sales | 88,990,000 | (63,427,000) | (35,879,000)
(Increase) decrease in accounts receivable—joint interest and other | (25,478,000) | 12,943,000 | (9,573,000)
Decrease in accounts receivable—related parties |  | 0 | 16,000
Decrease (increase) in prepaid expenses and other current assets | 5,586,000 | (5,695,000) | (1,777,000)
Decrease (increase) in other assets | 915,000 | 4,066,000 | (7,866,000)
(Decrease) increase in accounts payable, accrued liabilities and other | (19,548,000) | 9,768,000 | 106,375,000
Settlement of asset retirement obligation | (273,000) | (719,000) | (3,057,000)
Net cash provided by operating activities | 723,993,000 | 786,271,000 | 679,889,000
Cash flows from investing activities: |  |  |
Deductions to cash held in escrow | 0 | 0 | 8,000
Additions to other property and equipment | (5,021,000) | (7,870,000) | (19,372,000)
Acquisitions of oil and natural gas properties | 0 | 0 | (1,348,657,000)
Additions to oil and natural gas properties | (720,057,000) | (899,083,000) | (1,064,678,000)
Proceeds from sale of oil and gas properties | 48,527,000 | 5,114,000 | 4,866,000
Proceeds from sale of other property and equipment | 267,000 | 351,000 | 1,569,000
Proceeds from sale of other property and equipment | 0 | 226,487,000 | 0
Contributions to equity method investments | (432,000) | (2,319,000) | (55,280,000)
Distributions from equity method investments | 1,945,000 | 446,000 | 7,376,000
Net cash used in investing activities | (674,771,000) | (676,874,000) | (2,474,168,000)
Cash flows from financing activities: |  |  |
Principal payments on borrowings | (877,697,000) | (220,575,000) | (365,276,000)
Borrowings on line of credit | 952,000,000 | 265,000,000 | 365,000,000
Proceeds from bond issuance | 0 | 0 | 450,000,000
Repurchase of senior notes | (138,786,000) | 0 | 0
Borrowings on term loan | 0 | 0 | 2,951,000
Debt issuance costs and loan commitment fees | (288,000) | (831,000) | (14,350,000)
Payments on repurchase of stock | (30,688,000) | (200,251,000) | 0
Proceeds from issuance of common stock, net of offering costs and exercise of stock options |  |  | (5,364,000)
Net cash (used in) provided by financing activities | (95,459,000) | (156,657,000) | 432,961,000
Net decrease in cash, cash equivalents and restricted cash | (46,237,000) | (47,260,000) | (1,361,318,000)
Cash, cash equivalents and restricted cash at beginning of period | 52,297,000 | 99,557,000 | 1,460,875,000
Cash, cash equivalents and restricted cash at end of period | 6,060,000 | 52,297,000 | 99,557,000
Supplemental disclosure of cash flow information: |  |  |
Interest payments | 142,664,000 | 132,995,000 | 107,548,000
Income tax receipts | (1,794,000) |  | (1,105,000)
Supplemental disclosure of non-cash transactions: |  |  |
Capitalized stock-based compensation | 5,766,000 | 4,533,000 | 4,246,000
Asset retirement obligation capitalized | 6,883,000 | 1,452,000 | 42,270,000
Liabilities removed due to divestitures | (30,146,000) | 0 | 0
Interest capitalized | 3,372,000 | 4,470,000 | 9,470,000
Fair value of contingent consideration asset on date of divestiture | (1,137,000) | 0 | 0
Foreign currency translation gain (loss) on equity method investments | $ 9,193,000 | $ (15,487,000) | $ 12,519,000

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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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