Accounts Receivable and Major Customers (Tables)

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Summary of Accounts Receivable

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

	As of December 31,
	2013			2012
Customers	$	93,288		$	43,967
Joint interest partners	76,199			16,154
Other 1	25,538			4,523
	195,025			64,644
Less: Allowance for doubtful accounts	(622		)	(1,666		)
	$	194,403		$	62,978