Subsequent events (Notes)

12 Months Ended

Dec. 31, 2014

Subsequent Events [Abstract]

Subsequent events

Subsequent events

On February 2, 2015, we began implementation of a workforce reduction plan (the “Plan”) as part of a Company-wide effort to decrease our capital, operating and administrative costs. The Plan resulted in a total reduction of 180 employees, of which 121 were located in the Oklahoma City headquarters office and 59 were located at various field offices. All employees impacted by the Plan were notified by February 4, 2015. In connection with the Plan, we estimate that we will pay approximately $9,994 of one-time termination benefits. Of the estimated amount of one-time termination benefits, $3,356 relates to amounts previously accrued by us while the remaining $6,638 will be recorded as an expense during the first quarter of 2015.