Accounts Receivable and Major Customers (Tables)

6 Months Ended

Jun. 30, 2013

Receivables [Abstract]

Summary of Accounts Receivable

The following table summarizes our accounts receivable by type as of the dates presented:

	As of
	June 30,			December 31,
	2013			2012
Customers	$	66,791		$	43,967
Joint interest partners	63,201			16,154
Other	2,786			4,523
	132,778			64,644
Less: Allowance for doubtful accounts	(261		)	(1,666		)
	$	132,517		$	62,978