FILE PHOTO: A pump jack is seen at sunset near Midland, Texas, U.S., on May 3, 2017. Picture taken May 3, 2017. REUTERS/Ernest Scheyder/File Photo
FILE PHOTO: A pump jack is seen at sunset near Midland, Texas, U.S., on May 3, 2017. Picture taken May 3, 2017. REUTERS/Ernest Scheyder/File Photo