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Sale of Piceance and Arkoma Properties - Discontinued Operations
12 Months Ended
Dec. 31, 2016
Piceance Basin and Arkoma Basin  
Sale of Assets  
Sale of Piceance and Arkoma Properties - Discontinued Operations

(4) Sale of Piceance and Arkoma Properties—Discontinued Operations

In 2012, the Company sold its Piceance Basin assets in Colorado and its Arkoma Basin assets in Oklahoma.  Pre-tax losses recognized in discontinued operations at the time of the transactions were adjusted downward in 2014 by $3.6 million for the resolution of certain liabilities recorded at the time of the sales and settlement of final contractual purchase price adjustments.