Quarterly report pursuant to Section 13 or 15(d)

Reclamation and Restoration Provisions (Tables)

v3.21.2
Reclamation and Restoration Provisions (Tables)
 9 Months Ended
May 31, 2019
Reclamationand Restoration Provisions [Abstract]  
Schedule of reclamation and restoration provisions
    Oil Extraction Facility     Site Restoration     Total  
                   
Balance at August 31, 2017   $ 364,140     $ 208,080     $ 572,220  
Accretion expense     7,283       4,161       11,444  
Balance at August 31, 2018     371,423       212,241       583,664  
Accretion expense     5,571       3,184       8,755  
Balance at May 31, 2019   $ 376,994     $ 215,425     $ 592,419