Quarterly report pursuant to Section 13 or 15(d)

Joint Venture Drilling Program (Details Textual)

v3.21.2
Joint Venture Drilling Program (Details Textual)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2018
USD ($)
item
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
item
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Mar. 12, 2018
USD ($)
Property, Plant and Equipment, Net, Ending Balance   $ 657,657   $ 657,657   $ 686,878  
Other Assets, Noncurrent, Total   42,395   42,395   22,470  
Asset Retirement Obligation, Ending Balance   404,003   404,003   392,704  
Revenue from Contract with Customer, Excluding Assessed Tax, Total   132,828 $ 55,241 258,476 $ 179,369    
Monza Energy, LLC [Member]              
Property, Plant and Equipment, Net, Ending Balance   6,600   6,600      
Other Assets, Noncurrent, Total   4,200   4,200      
Asset Retirement Obligation, Ending Balance   300   300   200  
Increase (Decrease) in Working Capital       $ 1,700   1,300  
JV Drilling Program [Member]              
Number of wells completed | item       9      
Number of wells, drilling in progress | item       1      
Number of completed wells in operation | item       7      
JV Drilling Program [Member] | Monza Energy, LLC [Member]              
Capital Contribution Payments from Related Party   302,400   $ 302,400      
Capital Contributions from Related Party During Period       77,900      
Capital Contribution Payments to Related Party, Net   51,600   51,600      
Monza Energy, LLC [Member]              
Property, Plant and Equipment, Net, Ending Balance           9,900  
Other Assets, Noncurrent, Total           1,800  
Cash Call Balance   $ 3,400   3,400   7,300  
Revenue from Contract with Customer, Excluding Assessed Tax, Total       5,500   8,400  
Operating Costs and Expenses, Total       $ 6,700   $ 12,100  
Monza Energy, LLC [Member] | JV Drilling Program [Member]              
Number of initial members | item 2            
Amount Committed by Investors $ 361,400            
Joint Venture Working Interest Percentage Contributed to Related Party 88.94%            
Joint Venture Working Interest Percent 11.06%            
Oil and Gas Revenue, Percent 30.00%            
Well Cost, Percent 20.00%            
Monza Energy, LLC [Member] | JV Drilling Program [Member] | Mr. Tracy W. Krohn [Member]              
Minority Interest Ownership Percentage By Joint Venture 4.50%            
Capital Commitment to Joint Venture             $ 14,500