XML 112 R83.htm IDEA: XBRL DOCUMENT v3.3.1.900
Supplemental Information on Oil and Gas Exploration and Productions Activities (Unaudited) - Results of Operations for Producing Activities (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Results of Operations, Expense from Oil and Gas Producing Activities [Abstract]    
Production revenue $ 49,201 $ 48,834
Royalty and overriding royalty revenue 4,364 10,732
Total oil and gas related revenue 53,565 59,566
Depreciation, depletion and amortization 40,772 23,936
Property, franchise and other taxes 5,210 5,529
Production costs 12,871 12,544
Impairment of oil and gas properties 367,576 0
Total operating costs and expense 426,429 42,009
Total income from operations (372,864) 17,557
Nonproduction revenue $ 400 $ 1,900