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v3.8.0.1

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Revenues |  |  |  |  |  |  |  |  |  |  |
Oil and gas revenues |  |  |  |  |  |  |  |  | $ 1,034,892 | $ 625,233 | $ 721,672
Purchased oil and gas sales |  |  |  |  |  |  |  |  | 87,989 | 10,272 | 0
Midstream revenues |  |  |  |  |  |  |  |  | 72,752 | 35,406 | 23,769
Well services revenues |  |  |  |  |  |  |  |  | 52,791 | 33,754 | 44,294
Total revenues | $ 404,469 | $ 304,748 | $ 254,091 | $ 285,116 | $ 217,991 | $ 177,311 | $ 179,080 | $ 130,283 | 1,248,424 | 704,665 | 789,735
Operating expenses |  |  |  |  |  |  |  |  |  |  |
Lease operating expenses |  |  |  |  |  |  |  |  | 177,134 | 135,444 | 144,481
Midstream operating expenses |  |  |  |  |  |  |  |  | 17,589 | 9,003 | 6,198
Well services operating expenses |  |  |  |  |  |  |  |  | 37,228 | 20,675 | 24,782
Marketing, transportation and gathering expenses |  |  |  |  |  |  |  |  | 55,740 | 30,108 | 31,610
Purchased oil and gas expenses |  |  |  |  |  |  |  |  | 89,320 | 10,258 | 0
Production taxes |  |  |  |  |  |  |  |  | 88,133 | 56,565 | 69,584
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 530,802 | 476,331 | 485,322
Exploration expenses |  |  |  |  |  |  |  |  | 11,600 | 1,785 | 2,369
Rig termination |  |  |  |  |  |  |  |  | 0 | 0 | 3,895
Impairment |  |  |  |  |  |  |  |  | 6,887 | 4,684 | 46,109
General and administrative expenses |  |  |  |  |  |  |  |  | 91,797 | 89,342 | 89,549
Total operating expenses |  |  |  |  |  |  |  |  | 1,106,230 | 834,195 | 903,899
Gain (loss) on sale of properties |  |  |  |  |  |  |  |  | 1,774 | (1,303) | 0
Operating income (loss) | 86,103 | 32,394 | 5,379 | 20,092 | (1,702) | (25,702) | (28,214) | (75,215) | 143,968 | (130,833) | (114,164)
Other income (expense) |  |  |  |  |  |  |  |  |  |  |
Net gain (loss) on derivative instruments |  |  |  |  |  |  |  |  | (71,657) | (105,317) | 210,376
Interest expense, net of capitalized interest |  |  |  |  |  |  |  |  | (146,837) | (140,305) | (149,648)
Gain on extinguishment of debt |  |  |  |  |  |  |  |  | 0 | 4,741 | 0
Other income (expense) |  |  |  |  |  |  |  |  | (1,332) | 160 | (2,935)
Total other income (expense) |  |  |  |  |  |  |  |  | (219,826) | (240,721) | 57,793
Loss before income taxes |  |  |  |  |  |  |  |  | (75,858) | (371,554) | (56,371)
Income tax benefit |  |  |  |  |  |  |  |  | 203,304 | 128,538 | 16,123
Net income (loss) including non-controlling interests | 128,117 | (41,064) | 16,568 | 23,825 | (54,688) | (33,942) | (89,931) | (64,455) | 127,446 | (243,016) | (40,248)
Less: Net income attributable to non-controlling interests |  |  |  |  |  |  |  |  | 3,650 | 0 | 0
Net income (loss) attributable to Oasis | $ 124,617 | $ (41,214) | $ 16,568 | $ 23,825 | $ (54,688) | $ (33,942) | $ (89,931) | $ (64,455) | $ 123,796 | $ (243,016) | $ (40,248)
Earnings (loss) attributable to Oasis per share: |  |  |  |  |  |  |  |  |  |  |
Basic (in dollars per share) | $ 0.52 | $ (0.18) | $ 0.07 | $ 0.10 | $ (0.25) | $ (0.19) | $ (0.51) | $ (0.40) | $ 0.53 | $ (1.32) | $ (0.31)
Diluted (in dollars per share) | $ 0.52 | $ (0.18) | $ 0.07 | $ 0.10 | $ (0.25) | $ (0.19) | $ (0.51) | $ (0.40) | $ 0.52 | $ (1.32) | $ (0.31)
Weighted average shares outstanding: |  |  |  |  |  |  |  |  |  |  |
Basic (in shares) |  |  |  |  |  |  |  |  | 234,986 | 183,615 | 130,186
Diluted (in shares) |  |  |  |  |  |  |  |  | 237,875 | 183,615 | 130,186

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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section 25 -Paragraph 9 -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 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(a)(15)) -URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862 + Details
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- Definition Aggregate revenue during the period related to oil and gas business activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 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 210.5-03.1) -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 932 -SubTopic 235 -Section 50 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62246-109447 + Details
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