Annual report pursuant to Section 13 and 15(d)

Supplemental Oil and Gas Disclosures (Unaudited) (Details 2)

v3.7.0.1
Supplemental Oil and Gas Disclosures (Unaudited) (Details 2) - Oil Equivalents (Boe) [Member] - Boe
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Reserve Quantities [Line Items]      
Proved Developed 3,339,140 117,778  
Proved Non-Producing 852,830    
Proved Undeveloped 1,448,889 4,142,534  
Total Proved 5,640,862 4,260,312 5,074,665
Hunton [Member]      
Reserve Quantities [Line Items]      
Proved Developed 2,512,176    
Proved Non-Producing 728,654    
Total Proved 3,240,830    
Mississippian - Woodford - Hun [Member]      
Reserve Quantities [Line Items]      
Proved Developed 417,209    
Proved Non-Producing 124,176    
Total Proved 541,385    
Fusselman [Member]      
Reserve Quantities [Line Items]      
Proved Developed 10,141    
Total Proved 10,141    
Red Fork [Member]      
Reserve Quantities [Line Items]      
Proved Developed 66,859    
Total Proved 66,859    
Trend Area [Member]      
Reserve Quantities [Line Items]      
Proved Developed 129,554    
Total Proved 129,554    
Segundo - Other [Member]      
Reserve Quantities [Line Items]      
Proved Developed 29,798    
Total Proved 29,798    
Eagle Ford [Member]      
Reserve Quantities [Line Items]      
Proved Developed 35,526 9,675  
Proved Undeveloped 1,448,892 4,142,534  
Total Proved 1,484,418 4,152,209  
Austin Chalk [Member]      
Reserve Quantities [Line Items]      
Proved Developed 126,739 97,066  
Total Proved 126,739 97,066  
Eaglebine [Member]      
Reserve Quantities [Line Items]      
Proved Developed   10,328  
Total Proved   10,328  
Other [Member]      
Reserve Quantities [Line Items]      
Proved Developed 11,141 709  
Total Proved 11,141 709