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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 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, 2014 | Dec. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Revenues and other income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas, NGLs and oil sales |  | $ 603,159 | $ 507,541 | $ 506,137 | $ 559,450 | $ 458,645 | $ 304,477 | $ 224,606 | $ 209,487 |  |  | $ 2,176,287 | $ 1,197,215 | $ 1,089,644
Derivative fair value income (loss) |  | 25,024 | (88,426) | 111,195 | 165,557 | (250,057) | 64,556 | (162,798) | 86,908 |  |  | 213,350 | (261,391) | 416,364
Brokered natural gas, marketing and other |  | 50,849 | 63,117 | 55,779 | 51,648 | 44,934 | 44,174 | 39,989 | 35,018 |  |  | 221,393 | 164,115 | 92,060
Total revenues and other income |  | 679,032 | 482,232 | 673,111 | 776,655 | 253,522 | 413,207 | 101,797 | 331,413 |  |  | 2,611,030 | 1,099,939 | 1,598,068
Costs and expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct operating |  | 37,921 | 36,888 | 31,420 | 28,023 | 30,276 | 22,387 | 20,671 | 24,054 |  |  | 134,252 | 97,388 | 136,363
Transportation, gathering, processing and compression |  | 200,300 | 191,645 | 191,590 | 177,648 | 164,338 | 138,764 | 136,844 | 125,263 |  |  | 761,183 | 565,209 | 396,739
Production and ad valorem taxes |  | 11,757 | 11,993 | 9,969 | 9,163 | 6,790 | 6,717 | 6,049 | 5,887 |  |  | 42,882 | 25,443 | 33,860
Brokered natural gas and marketing |  | 51,131 | 59,773 | 55,857 | 53,550 | 46,471 | 44,622 | 40,925 | 36,558 |  |  | 220,311 | 168,576 | 115,866
Exploration |  | 7,893 | 22,767 | 14,498 | 8,504 | 13,684 | 6,943 | 6,785 | 4,913 |  |  | 53,662 | 32,325 | 21,406
Abandonment and impairment of unproved properties |  | 217,544 | 42,568 | 5,193 | 4,420 | 6,307 | 6,082 | 7,059 | 10,628 |  |  | 269,725 | 30,076 | 47,619
General and administrative |  | 80,553 | 53,035 | 52,322 | 47,496 | 57,027 | 41,024 | 46,064 | 40,657 |  |  | 233,406 | 184,772 | 194,015
MRD Merger expenses |  |  |  |  |  | 813 | 33,791 | 2,621 | 0 |  | $ 37,200 | 0 | 37,225 | 0
Termination costs |  | (279) | (47) | (96) | 4,192 | (822) | 136 | 5 | 162 | $ 8,400 |  | 3,770 | (519) | 15,070
Deferred compensation plan |  | (14,077) | (9,203) | (14,466) | (13,169) | (11,013) | (11,636) | 25,746 | 16,056 |  |  | (50,915) | 19,153 | (77,627)
Interest |  | 51,473 | 49,179 | 47,926 | 47,101 | 46,749 | 45,967 | 37,758 | 37,739 |  |  | 195,679 | 168,213 | 166,439
Loss on early extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 22,495
Depletion, depreciation and amortization |  | 162,918 | 159,749 | 152,504 | 149,821 | 149,662 | 131,489 | 122,390 | 120,561 |  |  | 624,992 | 524,102 | 581,155
Impairment of proved properties |  | 0 | 63,679 | 0 | 0 | 0 | 0 | 0 | 43,040 |  |  | 63,679 | 43,040 | 590,174
(Gain) loss on the sale of assets |  | (207) | (102) | (807) | (22,600) | (470) | 2,597 | 3,304 | 1,643 |  |  | (23,716) | 7,074 | 406,856
Total costs and expenses |  | 806,927 | 681,924 | 545,910 | 494,149 | 509,812 | 468,883 | 456,221 | 467,161 |  |  | 2,528,910 | 1,902,077 | 2,650,430
Income (loss) before income taxes |  | (127,895) | (199,692) | 127,201 | 282,506 | (256,290) | (55,676) | (354,424) | (135,748) |  |  | 82,120 | (802,138) | (1,052,362)
Income tax (benefit) expense: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current |  | 17 | 0 | 0 | 0 | 98 | 0 | 0 | 0 |  |  | 17 | 98 | 29
Deferred |  | (349,097) | (71,992) | 57,651 | 112,395 | (95,679) | (13,705) | (129,488) | (41,976) |  |  | (251,043) | (280,848) | (338,706)
Total (benefit) expense for income taxes |  | (349,080) | (71,992) | 57,651 | 112,395 | (95,581) | (13,705) | (129,488) | (41,976) |  |  | (251,026) | (280,750) | (338,677)
Net income (loss) |  | $ 221,185 | $ (127,700) | $ 69,550 | $ 170,111 | $ (160,709) | $ (41,971) | $ (224,936) | $ (93,772) |  |  | $ 333,146 | $ (521,388) | $ (713,685)
Net income (loss) per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ 0.89 | $ (0.52) | $ 0.28 | $ 0.69 | $ (0.66) | $ (0.23) | $ (1.35) | $ (0.56) |  |  | $ 1.34 | $ (2.75) | $ (4.29)
Diluted |  | $ 0.89 | $ (0.52) | $ 0.28 | $ 0.69 | $ (0.66) | $ (0.23) | $ (1.35) | $ (0.56) |  |  | $ 1.34 | $ (2.75) | $ (4.29)
Weighted average common shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic | [1] |  |  |  |  |  |  |  |  |  |  | 245,091 | 189,868 | 166,389
Diluted |  |  |  |  |  |  |  |  |  |  |  | 245,458 | 189,868 | 166,389
[1] | Includes common stock issued in connection with the exchange of 77.0 million shares for all outstanding Memorial common stock on September 16, 2016.

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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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