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Asset Retirement Obligations
12 Months Ended
Dec. 31, 2021
Asset Retirement Obligation [Abstract]  
Asset Retirement Obligations ASSET RETIREMENT OBLIGATIONS:
The reconciliation of changes in asset retirement obligations is as follows:
December 31,
20212020
Balance, Beginning of Year$93,168 $68,454 
Obligations Divested(124)(703)
Accretion Expense9,233 11,067 
Obligations Incurred3,237 2,806 
Obligations Settled(9,501)(7,905)
Revisions in Estimated Cash Flows— 19,449 
Balance, End of Year$96,013 $93,168