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CONDENSED CONSOLIDATED STATEMENTS OF INCOME/(LOSS) AND COMPREHENSIVE INCOME/(LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
CONDENSED CONSOLIDATED STATEMENTS OF INCOME/(LOSS) AND COMPREHENSIVE INCOME/(LOSS)
Revenues	$ 0	$ 0	$ 0	$ 0
Operating expense:
Exploration, property evaluation and holding costs	(1,401)	(960)	(3,294)	(3,560)
Corporate administration	(865)	(969)	(3,079)	(3,280)
Depreciation and amortization	(14)	(12)	(40)	(252)
Total operating expense	(2,280)	(1,941)	(6,413)	(7,092)
Non-operating income/(expense):
Gain/(loss) on other investments (Note 3)	(234)	(274)	(1,951)	1,754
Interest income	27	72	103	322
Other income/(expense)	(11)	81	67	83
Total non-operating income/(expense)	(218)	(121)	(1,781)	2,159
Loss before income taxes	(2,498)	(2,062)	(8,194)	(4,933)
Net loss	(2,498)	(2,062)	(8,194)	(4,933)
Other comprehensive loss:
Comprehensive loss	$ (2,498)	$ (2,062)	$ (8,194)	$ (4,933)
Basic:
Weighted average number of shares outstanding (in shares)	100,606,542	99,805,266	100,490,309	99,600,267
Net loss per share, Basic (in dollars per share)	$ (0.02)	$ (0.02)	$ (0.08)	$ (0.05)
Diluted:
Weighted average number of shares outstanding (in shares)	100,606,542	99,805,266	100,490,309	99,600,267
Net loss per share, Diluted (in dollars per share)	$ (0.02)	$ (0.02)	$ (0.08)	$ (0.05)

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The costs incurred to retain exploration and property rights after acquisition but before production has occurred. Costs include legal costs for title defense, ad valorem taxes on nonproducing mineral properties, shut-in royalties, and delay rentals.

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