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REVENUE RECOGNITION
3 Months Ended
Mar. 31, 2022
Revenue from Contract with Customer [Abstract]  
REVENUE RECOGNITION REVENUE RECOGNITION
We derive most of our revenue from sales of oil, natural gas and NGLs, with the remaining revenue primarily generated from sales of electricity and marketing activities related to storage and managing excess pipeline capacity.

The following table provides disaggregated revenue for sales of produced oil, natural gas and NGLs to customers:

Three months ended March 31,
20222021
(in millions)
Oil$486 $331 
Natural gas80 47 
NGLs62 54 
Oil, natural gas and NGL sales$628 $432