Other Long-Term Liabilities and Deferred Credits

12 Months Ended

Dec. 31, 2016

Other Liabilities Disclosure [Abstract]

Other Long-Term Liabilities and Deferred Credits

8. OTHER LONG-TERM LIABILITIES AND DEFERRED CREDITS

Other long-term liabilities and deferred credits on the balance sheet consisted of:

	December 31,
	2016	2015
Royalties payable(1)	$      500	$     500
UNC data purchase contract(2)	—	300
	$      500	$     800

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(1) Royalties payable were derived during prior years of production. Liabilities do not accrue interest or have a stated maturity date.

(2) On December 21, 2016, the Company returned the data to UNC. Pursuant to the terms of the Data Purchase Agreement, upon return of the data to UNC, the Data Purchase Agreement would be canceled and the Company would be released from any unpaid obligation. As a result, the Company was released from its $0.4 million liability and recorded the amount as a reduction in land holding and maintenance costs at its Cebolleta project.