CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue
Oil and gas operations, net of royalties	$ 167	$ 194	$ 544	$ 632
Operating expenses
Oil and gas operations	186	254	700	766
Corporate general and administrative	99	95	282	317
Total Operating Expenses	285	349	982	1,083
Operating earnings (loss)	(118)	(155)	(438)	(451)
Other income (expense)
Interest income	5	5	16	20
Interest expense	(6)	(6)	(17)	(19)
Other income (expense)	(2)	66	10	51
Total Other income (expense)	(3)	65	9	52
Loss from continuing operations	(121)	(90)	(429)	(399)
Earnings (loss) from discontinued operations	0	(11)	0	2
Net income (loss) applicable to common shares	$ (121)	$ (101)	$ (429)	$ (397)
Net income (loss) per common share-basic and diluted	$ (0.06)	$ (0.05)	$ (0.20)	$ (0.20)
Weighted average common and equivalent shares outstanding - basic	2,132	1,947	2,132	1,947

Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447