Accounts Receivable and Major Customers (Tables)

6 Months Ended

Jun. 30, 2014

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,
	2014			2013
Customers	$	101,369		$	93,288
Joint interest partners	96,129			76,199
Other 1	41,003			25,538
	238,501			195,025
Less: Allowance for doubtful accounts	(176		)	(622		)
	$	238,325		$	194,403

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¹ Comprised substantially of amounts due from the seller and other parties for purchase price adjustments attributable to the EF Acquisition.