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SUPPLEMENTAL CONSOLIDATED FINANCIAL STATEMENT INFORMATION (Tables)
9 Months Ended
Sep. 30, 2021
Supplemental Consolidated Financial Statement Information  
Schedule of operating revenues disaggregated by geographic region

Three Months Ended September 30, 

Nine Months Ended September 30, 

    

2021

    

2020

2021

2020

Operating Revenues

United States

$

1,914

$

8,738

 

$

10,891

 

$

65,408

Canada

 

 

 

2,964

 

11,808

Total

$

1,914

$

8,738

$

13,855

$

77,216