Accounts Receivable and Major Customers

3 Months Ended

Mar. 31, 2014

Receivables [Abstract]

Accounts Receivable and Major Customers

Accounts Receivable and Major Customers

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

	As of
	March 31,			December 31,
	2014			2013
Customers	$	92,612		$	93,288
Joint interest partners	43,860			76,199
Other 1	31,340			25,538
	167,812			195,025
Less: Allowance for doubtful accounts	(622		)	(622		)
	$	167,190		$	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.

For the three months ended March 31, 2014, four customers accounted for $89.5 million, or approximately 67%, of our consolidated product revenues. The revenues generated from these customers during the three months ended March 31, 2014 were $38.8 million, $17.4 million, $17.2 million and $16.1 million or 29%, 13%, 13% and 12% of the consolidated total, respectively. As of March 31, 2014, $40.0 million, or approximately 43% of our consolidated accounts receivable from customers was related to these customers. For the three months ended March 31, 2013, four customers accounted for $46.2 million, or approximately 56% of our consolidated product revenues. The revenues generated from these customers during the three months ended March 31, 2013 were $16.1 million, $10.9 million, $10.6 million and $8.6 million or approximately 20%, 13%, 13% and 10% of the consolidated total, respectively. As of December 31, 2013, $36.9 million, or approximately 40% of our consolidated accounts receivable from customers, was related to these customers. No significant uncertainties exist related to the collectability of amounts owed to us by any of these customers.