b'KOSMOS ENERGY LTD.Notes to Consolidated Financial Statements (Continued)17. Business Segment Information (Continued)Equatorial Mauritania/ United Corporate &Ghana Guinea(1) Senegal States Other Eliminations(2) Total(in thousands)Year ended December 31, 2017Revenues and other income:Oil and gas revenue . . . . . . . . . $ 578,139 $ 27,308 $$$$ (27,308) $ 578,139Gain on sale of assets . . . . . . . . Other income, net . . . . . . . . . . 5 147 $ 219,968 (161,423) 58,697Total revenues and other income . 578,144 27,455 219,968 (188,731) 636,836Costs and expenses:Oil and gas production . . . . . . . . 137,584 7,755 (10,734) (7,755) 126,850Facilities insurance modifications,net . . . . . . . . . . . . . . . . . . (820)(820)Exploration expenses . . . . . . . . . 394 86 71,456144,114216,050General and administrative . . . . . 14,836 672 8,298138,661 (94,165) 68,302Depletion and depreciation . . . . . 251,890 11,181 203,293 (11,181) 255,203Interest and other financing costs,net(3) . . . . . . . . . . . . . . . . 71,592(16,065)29,202 (7,134) 77,595Derivatives, net . . . . . . . . . . . . 59,96859,968Loss on equity method investments,net . . . . . . . . . . . . . . . . . . 11,486 (5,234) 6,252Other expenses, net. . . . . . . . . . 64,768867(376) (59,968) 5,291Total costs and expenses . . . . . . 540,244 19,694 76,062364,128 (185,437) 814,691Income (loss) before income taxes . . 37,900 7,761 (76,062)(144,160) (3,294) (177,855)Income tax expense (benefit) . . . . 18,649 3,294 326,285 (3,294) 44,937Net income (loss) . . . . . . . . . . . . $ 19,251 $ 4,467 $(76,065) $$ (170,445) $$ (222,792)Consolidated capital expenditures . . . $ 5,545 $ 1,995 $(80,929) $$ 130,821 $$ 57,432As of December 31, 2017Property and equipment, net . . . . . . $1,901,127 $ 1,908 $381,422 $$ 33,371 $$2,317,828Total assets . . . . . . . . . . . . . . . . $2,263,824 $237,835 $570,044 $$8,671,437 $(8,550,537) $3,192,603(1) Includes our proportionate share of our equity method investment in KTIPI, including our basis difference which is reflected indepletion and depreciation for the year ended December 31, 2017, except for capital expenditures. See Note 7Equity MethodInvestments for additional information regarding our equity method investments.(2) Includes elimination of proportionate consolidation amounts recorded for KTIPI to reconcile to (Gain) loss on equity methodinvestments, net as reported in the consolidated statements of operations.(3) Interest expense is recorded based on actual third-party and intercompany debt agreements. Capitalized interest is recorded on thebusiness unit where the assets reside.149'