Accounts Receivable and Major Customers

3 Months Ended

Mar. 31, 2017

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:

	March 31,			December 31,
	2017			2016
Customers	$	23,331		$	20,489
Joint interest partners	16,024			7,238
Other 1	1,693			3,789
	41,048			31,516
Less: Allowance for doubtful accounts	(2,381		)	(2,421		)
	$	38,667		$	29,095

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¹ Includes amounts owed to us from joint venture partners for acquisitions in prior periods, severance tax refunds approved by state taxing authorities to be returned to us and other miscellaneous non-operating items.

For the three months ended March 31, 2017, one customer accounted for $31.2 million, or approximately 90%, of our consolidated product revenues. As of March 31, 2017, $20.2 million, or approximately 86%, of our consolidated accounts receivable from customers was related to this customer. For the three months ended March 31, 2016, two customers accounted for $26.5 million, or approximately 88%, of our consolidated product revenues. The revenues generated from these customers during the three months ended March 31, 2016 were $13.9 million and $12.6 million, or approximately 46%, and 42% of the consolidated total, respectively. As of December 31, 2016, $16.7 million, or approximately 81%, 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.