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CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income (loss) | $ 100,393 | $ (417,124) | $ (113,891)
Adjustments to reconcile net income (loss) to cash provided by operating activities: |  |  |
Depreciation, depletion and amortization | 568,817 | 590,128 | 622,211
Impairment of oil and gas properties and other assets | 482,811 | 435,619 | 114,875
Deferred income tax benefit | (321,113) | (230,707) | (72,968)
(Gain) loss on sale of assets | 11,565 | 1,857 | (3,866)
Exploratory dry hole cost | 3,820 | 10,120 | 3,452
(Gain) loss on derivative instruments | (16,926) | 38,950 | (56,686)
Net cash received (paid) in settlement of derivative instruments | 8,056 | (1,682) | 194,289
(Earnings) loss on equity method investments | 100,486 | 2,477 | (6,415)
Amortization of debt issuance costs | 4,774 | 5,083 | 4,454
Stock-based compensation and other | 33,419 | 25,982 | 13,645
Changes in assets and liabilities: |  |  |
Accounts receivable, net | (25,036) | (71,060) | 112,406
Income taxes | (46,368) | (5,975) | (711)
Inventories | 1,334 | 3,044 | (3,023)
Other current assets | (104) | (21) | (817)
Accounts payable and accrued liabilities | (2,552) | 10,858 | (55,217)
Interest payable | (75) | (2,573) | (455)
Other assets and liabilities | (5,141) | 2,465 | (1,685)
Net cash provided by operating activities | 898,160 | 397,441 | 749,598
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Capital expenditures | (764,558) | (375,153) | (955,602)
Acquisitions | 0 | 0 | (16,312)
Proceeds from sale of assets | 115,444 | 50,419 | 7,653
Investment in equity method investments | (57,039) | (28,484) | (29,073)
Net cash used in investing activities | (706,153) | (353,218) | (993,334)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Borrowings from debt | 0 | 90,000 | 877,000
Repayments of debt | 0 | (587,000) | (604,000)
Treasury stock repurchases | (123,741) | 0 | 0
Sale of common stock, net | 0 | 995,279 | 0
Dividends paid | (78,838) | (36,187) | (33,090)
Tax withholding on vesting of stock awards | (7,973) | (5,064) | (8,861)
Capitalized debt issuance costs | 0 | (3,223) | (7,838)
Other | 50 | 0 | 85
Net cash (used in) provided by financing activities | (210,502) | 453,805 | 223,296
Net (decrease) increase in cash and cash equivalents | (18,495) | 498,028 | (20,440)
Cash and cash equivalents, beginning of period | 498,542 | 514 | 20,954
Cash and cash equivalents, end of period | $ 480,047 | $ 498,542 | $ 514

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- Definition The cash outflow for exploration and development of oil and gas properties. It includes cash payments related to development of oil and gas wells drilled at previously untested geologic structures (to determine the presence of oil or gas) and wells drilled at sites where the presence of oil or gas has already been established (to extract the oil or gas). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition Dry hole costs from oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section 25 -Paragraph 9 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=96866604&loc=d3e64954-109465 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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