Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details) - Schedule of oil extraction and processing segment

v3.21.2
Segment Information (Details) - Schedule of oil extraction and processing segment - Corporate Segment [Member] - USD ($)
May 31, 2019
May 31, 2018
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]    
Total Non-Current Assets $ 18,651 $ 3,025
Total Asset 56,946 32,006
Total Liabilities 10,753 7,990
Oil Extraction [Member]    
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]    
Total Non-Current Assets 7,851 3,025
Total Asset 37,291 22,959
Total Liabilities 10,584 7,821
Mining Operations [Member]    
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]    
Total Non-Current Assets 10,800
Total Asset 19,655 9,047
Total Liabilities $ 169 $ 169