4. FAIR VALUE MEASUREMENTS (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Total assets	$ 2,940,412	$ 3,728,588
Commodity derivatives - oil
Total assets	2,735,087	3,442,693
Commodity derivatives - gas
Total assets	205,325	285,895
Quoted prices in active markets (Level 1)
Total assets	0	0
Quoted prices in active markets (Level 1) | Commodity derivatives - oil
Total assets	0	0
Quoted prices in active markets (Level 1) | Commodity derivatives - gas
Total assets	0	0
Significant other observable inputs (Level 2)
Total assets	2,940,412	3,728,588
Significant other observable inputs (Level 2) | Commodity derivatives - oil
Total assets	2,735,087	3,442,693
Significant other observable inputs (Level 2) | Commodity derivatives - gas
Total assets	205,325	285,895
Significant unobservable inputs (Level 3)
Total assets	0	0
Significant unobservable inputs (Level 3) | Commodity derivatives - oil
Total assets	0	0
Significant unobservable inputs (Level 3) | Commodity derivatives - gas
Total assets	$ 0	$ 0