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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018
Operating Activities |  |  |  |
Net income including noncontrolling interest |  | $ 196,011 | $ 213,772 | [1],[2]
Adjustments to reconcile net income to net cash provided by continuing operations activities: |  |  |  |
(Income) loss from discontinued operations |  | (74,264) | (148,376) | [1],[2]
Depreciation, depletion and amortization |  | 493,708 | 373,494 | [1],[2]
Previously suspended exploration costs (credits) |  | 12,901 | (8) | [1]
Amortization of undeveloped leases |  | 15,150 | 22,774 | [1]
Accretion of asset retirement obligations |  | 19,237 | 12,768 | [1],[2]
Deferred income tax charge (benefit) |  | 18,001 | (148,653) | [1]
Pretax (gain) loss from sale of assets |  | (12) | 118 | [1]
Mark to market and revaluation of contingent consideration |  | 28,890 | 0 |
Mark to market of crude contracts | [1] | (50,831) | 27,088 |
Long-term non-cash compensation |  | 44,755 | 29,010 | [1]
Net (increase) decrease in noncash operating working capital |  | (5,366) | 22,498 | [1]
Other operating activities, net |  | (42,749) | (72,804) | [1]
Net cash provided by continuing operations activities |  | 655,431 | 331,681 | [1]
Investing Activities |  |  |  |
Acquisition of oil and gas properties |  | (1,226,261) | 0 |
Property additions and dry hole costs |  | (645,169) | (565,237) | [1]
Proceeds from sales of property, plant and equipment | [1] | 16,816 | 621 |
Net cash required by investing activities |  | (1,854,614) | (564,616) | [1]
Financing Activities |  |  |  |
Borrowings on revolving credit facility |  | 1,075,000 | 0 |
Proceeds from term loan |  | 500,000 | 0 |
Repurchase of common stock |  | (299,924) | 0 |
Capital lease obligation payments |  | (335) | 0 |
Withholding tax on stock-based incentive awards |  | (6,991) | (6,922) | [1]
Distribution to noncontrolling interest |  | (68,776) | 0 |
Cash dividends paid |  | (85,503) | (86,517) | [1]
Net cash provided (required) by financing activities |  | 1,113,471 | (93,439) | [1]
Cash Flows from Discontinued Operations 2 |  |  |  |
Operating activities |  | 122,272 | 290,849 | [1]
Investing activities |  | (49,798) | (49,910) | [1]
Financing activities |  | (4,914) | (4,648) | [1]
Net cash provided by discontinued operations |  | 67,560 | 236,291 | [1]
Cash transferred from discontinued operations to continuing operations |  | 48,565 | 464,258 | [1]
Effect of exchange rate changes on cash and cash equivalents |  | 3,268 | 24,382 | [1]
Net increase (decrease) in cash and cash equivalents |  | (33,879) | 162,266 | [1]
Cash and cash equivalents at beginning of period |  | 359,923 | 630,433 | [1]
Cash and cash equivalents at end of period |  | $ 326,044 | $ 792,699 | [1]
[1] | Reclassified to conform to current presentation (See Note A).
[2] | Reclassified to conform to current presentation (see Note A).

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- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + 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 (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 25 -Paragraph 19A -URI http://asc.fasb.org/extlink&oid=107668666&loc=SL79513924-113897 + Details
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- Definition The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations 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 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible 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 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 sale of property, plant and equipment (capital expenditures), software, and other intangible 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 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + 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=114867106&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 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=114867106&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591551-111686 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3000-108585 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591552-111686 + Details
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