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Significant Concentrations
12 Months Ended
Dec. 31, 2019
Risks and Uncertainties [Abstract]  
Significant Concentrations Significant Concentrations
Major customers. For the year ended December 31, 2019, sales to Phillips 66 Company accounted for approximately 14% of the Company’s total sales. For the year ended December 31, 2018, no purchaser accounted for more than 10% of the Company’s total sales. For the year ended December 31, 2017, sales to Shell Trading (US) Company accounted for approximately 16% of the Company’s total sales. No other purchasers accounted for more than 10% of the Company’s total sales for the years ended December 31, 2019 and 2017. Total sales include revenues from the Company’s exploration and production segment only, as OMS and OWS provide services to OPNA.
Substantially all of the Company’s accounts receivable result from sales of crude oil, natural gas and NGLs as well as joint interest billings (“JIB”) to third-party companies who have working interest payment obligations in projects completed by the Company. This concentration of customers and joint interest owners may impact the Company’s overall credit risk, either positively or negatively, in that these entities may be similarly affected by changes in economic or other conditions, including the current downturn in crude oil prices. Management believes that the loss of any of these purchasers would not have a material adverse effect on the Company’s operations, as there are a number of alternative crude oil, natural gas and NGL purchasers in the Company’s producing regions.