FILE PHOTO: A pump jack operates in front of a

FILE PHOTO: A pump jack operates in front of a drilling rig at sunset in an oil field in Midland, Texas U.S. August 22, 2018. Picture taken August 22, 2018. REUTERS/Nick Oxford/File Photo
FILE PHOTO: A natural gas flare on an oil well
FILE PHOTO: Roughnecks wrestle pipe on an oil drilling rig
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