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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Operating activities: |  |
Net income (loss) | $ 239,661,000 | $ (318,708,000)
Adjustments to reconcile net income (loss) to net cash provided from operating activities: |  |
Deferred income tax expense (benefit) | 170,046,000 | (171,464,000)
Depletion, depreciation and amortization and impairment | 302,325,000 | 285,991,000
Exploration dry hole costs | 161,000 | 0
Abandonment and impairment of unproved properties | 9,613,000 | 17,687,000
Derivative fair value (income) loss | (276,752,000) | 75,890,000
Cash settlements on derivative financial instruments | (794,000) | 207,544,000
Allowance for bad debt | 300,000 | 450,000
Amortization of deferred financing costs, loss on extinguishment of debt and other | 2,557,000 | 3,437,000
Deferred and stock-based compensation | 1,952,000 | 71,718,000
(Gain) loss on the sale of assets | (23,407,000) | 4,947,000
Changes in working capital: |  |
Accounts receivable | (13,610,000) | 41,955,000
Inventory and other | 3,716,000 | 10,500,000
Accounts payable | 18,426,000 | (19,194,000)
Accrued liabilities and other | (22,866,000) | (37,552,000)
Net cash provided from operating activities | 411,328,000 | 173,201,000
Investing activities: |  |
Additions to natural gas and oil properties | (469,644,000) | (241,109,000)
Additions to field service assets | (2,966,000) | (1,304,000)
Acreage purchases | (37,987,000) | (23,554,000)
Proceeds from disposal of assets | 27,288,000 | 190,803,000
Purchases of marketable securities held by the deferred compensation plan | (19,665,000) | (22,115,000)
Proceeds from the sales of marketable securities held by the deferred compensation plan | 21,356,000 | 22,997,000
Net cash used in investing activities | (481,618,000) | (74,282,000)
Financing activities: |  |
Borrowings on credit facilities | 946,000,000 | 647,000,000
Repayments on credit facilities | (874,000,000) | (739,000,000)
Repayment of senior notes | (500,000) | 0
Debt issuance costs | 0 | (124,000)
Dividends paid | (9,914,000) | (6,796,000)
Taxes paid for shares withheld | (6,077,000) | (3,597,000)
Change in cash overdrafts | 10,839,000 | (6,804,000)
Proceeds from the sales of common stock held by the deferred compensation plan | 4,148,000 | 10,313,000
Net cash provided from (used in) financing activities | 70,496,000 | (99,008,000)
Increase (decrease) in cash and cash equivalents | 206,000 | (89,000)
Cash and cash equivalents at beginning of period | 314,000 | 471,000
Cash and cash equivalents at end of period | $ 520,000 | $ 382,000

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- Definition The net cash inflow or outflow from the excess drawing from an existing cash balance, which will be honored by the bank but reflected as a loan to the drawer. + 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 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + 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 Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130534-203044 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or 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 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during 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 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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