Schedule II Kosmos Energy Ltd. Valuation and Qualifying Accounts For the Years Ended December 31, 2017, 2016 and 2015 Additions Charged to Charged Deductions Balance Costs and To Other From Balance Description January 1, Expenses Accounts Reserves December 31, 2017 Allowance for doubtful receivables . . . . . . $ 574 $ 77 $— $(651) $ — Allowance for deferred tax assets . . . . . . . $ 87,517 $ 6,008 $— $ — $ 93,525 2016 Allowance for doubtful receivables . . . . . . $ — $ 574 $— $ — $ 574 Allowance for deferred tax assets . . . . . . . $116,541 $(29,024) $— $ — $ 87,517 2015 Allowance for doubtful receivables . . . . . . $ — $ — $— $ — $ — Allowance for deferred tax assets . . . . . . . $ 75,941 $ 40,600 $— $ — $116,541 Schedules other than Schedule I and Schedule II have been omitted because they are not applicable or the required information is presented in the consolidated financial statements or the notes to consolidated financial statements. (3) Exhibits See ‘‘Index to Exhibits’’ on page 141 for a description of the exhibits filed as part of this report. Item 16. Form 10-K Summary None 164