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Segment Information and Major Customers
12 Months Ended
Dec. 31, 2018
Segment Reporting [Abstract]  
Segment Information and Major Customers
9. Segment Information and Major Customers
 
The Company operates in one industry – oil and gas exploration, development, operation and servicing. The Company’s oil and gas activities are entirely in the United States.
 
The Company sells its oil and natural gas and liquids production to a number of direct purchasers under direct contracts or through other operators under joint operating agreements.  Listed below are the purchasers of the Company’s production which represented more than
10%
of the Company’s sales in the year 2018.
 
Oil:
    
Apache Corporation
  50.9%
Plains All American Inc.
  17.8
Natural gas and liquids:
    
Apache Corporation
  35.6%
Targa Pipeline 
Mid-Continent
 West Tex, LLC
  21.4%
 
Although there are no long-term oil and gas purchasing agreements with these purchasers, the Company believes that they will continue to purchase its oil and gas products and, if not, could be replaced by other purchasers.