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ASSET RETIREMENT OBLIGATIONS
 12 Months Ended
Sep. 30, 2020
Asset Retirement Obligation Disclosure [Abstract]  
ASSET RETIREMENT OBLIGATIONS ASSET RETIREMENT OBLIGATIONS
The following table provides a roll-forward of the AROs reflected in the Company’s Consolidated Balance Sheets:
20202019
Beginning Balance$12,675 $— 
Purchase Accounting in connection with the Acquisition(860)12,145 
Liabilities settled— — 
Accretion of discount599 530 
Estimate revision(655)— 
Ending Balance at September 30$11,759 $12,675