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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Cash flows from operating activities: |  |
Net loss | $ (120,172) | $ (189,492)
Adjustments to reconcile net loss to net cash provided by operating activities: |  |
Depreciation, depletion, amortization and impairment | 703,928 | 572,187
Dry holes and abandonments | 569 | 443
Deferred income tax benefit | (24,617) | (104,190)
Stock-based compensation expense | 28,449 | 35,101
Net gain on asset disposals | (21,186) | (19,079)
Amortization of debt discount and issuance costs | 607 | 260
Changes in operating assets and liabilities: |  |
Accounts receivable | (67,975) | (246,407)
Income taxes receivable | 3,275 | 1,499
Inventory and other assets | (8,022) | (26,398)
Accounts payable | (31,935) | 91,499
Accrued expenses | 25,480 | 15,917
Other liabilities | 345 | (75)
Net cash provided by operating activities | 488,746 | 131,265
Cash flows from investing activities: |  |
Acquisitions, net of cash acquired | (3,800) | (434,194)
Purchases of property and equipment | (480,568) | (329,851)
Proceeds from disposal of assets | 28,008 | 39,672
Collection of note receivable | 23,760 |
Other investments |  | (2,520)
Net cash used in investing activities | (432,600) | (726,893)
Cash flows from financing activities: |  |
Proceeds of equity offering |  | 471,570
Purchases of treasury stock | (111,655) | (6,809)
Proceeds from exercise of options | 485 |
Dividends paid | (21,960) | (11,866)
Debt issuance costs | (4,469) |
Proceeds from long-term debt | 521,194 |
Proceeds from borrowings under revolving credit facility | 79,000 | 282,000
Repayment of borrowings under revolving credit facility | (347,000) | (138,000)
Net cash provided by financing activities | 115,595 | 596,895
Effect of foreign exchange rate changes on cash | (537) | 1,420
Net increase in cash and cash equivalents | 171,204 | 2,687
Cash and cash equivalents at beginning of period | 42,828 | 35,152
Cash and cash equivalents at end of period | 214,032 | 37,839
Net cash (paid) received during the period for: |  |
Interest, net of capitalized interest of $1,094 in 2018 and $781 in 2017 | (27,306) | (18,336)
Income taxes | 3,277 | 3,866
Non-cash investing and financing activities: |  |
Receivable from property and equipment insurance | 15,000 |
Net increase in payables for purchases of property and equipment | 60,545 | 48,919
Issuance of common stock for business acquisitions |  | 1,039,396
Net (increase) decrease in deposits on equipment purchases | $ (2,707) | $ 1,023

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + 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://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=109223946&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. + 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 (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition The cash inflow 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://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=109223946&loc=d3e3255-108585 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109197908&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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