Supplemental Information on Oil and Gas Exploration, Development and Production Activities (Unaudited) - Costs Incurred in Oil and Gas Property Acquisition, Exploration and Development Activities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
United States [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Proved	$ 258,352	$ 1,043,977
Unproved	135,329
Exploration costs	71,568	3,443,222
Development costs
Total costs incurred	393,681	4,487,199
South America [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Proved
Unproved	11,829	25,154
Exploration costs
Development costs
Total costs incurred	$ 11,829	$ 25,154