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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Cash flows from operating activities: |  |
Net loss | $ (28,614) | $ (34,417)
Adjustments to reconcile net loss to net cash provided by operating activities: |  |
Depreciation, depletion, amortization and impairment | 214,410 | 209,892
Dry holes and abandonments | 21 | 96
Deferred income tax expense (benefit) | (6,604) | 282
Stock-based compensation expense | 9,338 | 9,365
Net gain on asset disposals | (6,545) | (10,410)
Amortization of debt discount and issuance costs | 221 | 170
Changes in operating assets and liabilities: |  |
Accounts receivable | 10,929 | (16,468)
Income taxes receivable/payable | (14) | 19
Inventory and other assets | 6,592 | 2,709
Accounts payable | (17,858) | (22,514)
Accrued expenses | 2,871 | 11,174
Other liabilities | (915) | 67
Net cash provided by operating activities | 183,832 | 149,965
Cash flows from investing activities: |  |
Acquisitions, net of cash acquired | (13) | (3,800)
Purchases of property and equipment | (118,341) | (122,921)
Proceeds from disposal of assets and insurance claims | 22,054 | 10,294
Net cash used in investing activities | (96,300) | (116,427)
Cash flows from financing activities: |  |
Purchases of treasury stock | (75,113) | (16,928)
Proceeds from exercise of options |  | 485
Dividends paid | (8,499) | (4,443)
Debt issuance costs |  | (4,198)
Proceeds from long-term debt |  | 521,194
Proceeds from borrowings under revolving credit facility |  | 79,000
Repayment of borrowings under revolving credit facility |  | (347,000)
Net cash provided by financing activities | (83,612) | 228,110
Effect of foreign exchange rate changes on cash | (48) | (225)
Net increase in cash and cash equivalents | 3,872 | 261,423
Cash and cash equivalents at beginning of period | 245,029 | 42,828
Cash and cash equivalents at end of period | 248,901 | 304,251
Net cash (paid) received during the period for: |  |
Interest, net of capitalized interest of $257 in 2019 and $340 in 2018 | (10,689) | (2,206)
Income taxes | (15) | 21
Non-cash investing and financing activities: |  |
Receivable from property and equipment insurance |  | 15,000
Net increase (decrease) in payables for purchases of property and equipment | (10,764) | 62,488
Net (increase) decrease in deposits on equipment purchases | $ 1,535 | $ (2,294)

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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 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 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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