Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS (Details Textual)

v3.19.1
SUBSEQUENT EVENTS (Details Textual)
Apr. 09, 2019
USD ($)
shares
Dec. 31, 2020
bbl
Dec. 31, 2019
bbl
Dec. 31, 2018
USD ($)
Jun. 01, 2018
USD ($)
Jul. 01, 2014
USD ($)
Subsequent Event [Line Items]            
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares 4,581,001          
Scenario, Forecast [Member] | Addititional Derivative Contracts [Member]            
Subsequent Event [Line Items]            
Derivative, Nonmonetary Notional Amount | bbl   2,000 2,000      
Maximum [Member]            
Subsequent Event [Line Items]            
Line of Credit Facility, Maximum Borrowing Capacity           $ 175,000,000
Minimum [Member]            
Subsequent Event [Line Items]            
Line of Credit Facility, Maximum Borrowing Capacity         $ 60,000,000  
Revolving Credit Facility [Member]            
Subsequent Event [Line Items]            
Line of Credit Facility, Maximum Borrowing Capacity       $ 500,000,000    
Subsequent Event [Member] | Wishbone Acquisition [Member]            
Subsequent Event [Line Items]            
Payments to Acquire Businesses, Gross $ 249,062,999          
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares 4,581,001          
Common Stock Held in Escrow | shares 2,538,071          
Subsequent Event [Member] | Revolving Credit Facility [Member]            
Subsequent Event [Line Items]            
Line of Credit Facility, Expiration Period 5 years          
Subsequent Event [Member] | Revolving Credit Facility [Member] | Maximum [Member]            
Subsequent Event [Line Items]            
Line of Credit Facility, Maximum Borrowing Capacity $ 1,000,000,000          
Subsequent Event [Member] | Revolving Credit Facility [Member] | Minimum [Member]            
Subsequent Event [Line Items]            
Line of Credit Facility, Maximum Borrowing Capacity $ 425,000,000