FILE PHOTO: Oil rig pumpjacks, also known as thirsty birds, extract crude from the Wilmington Field oil deposits area where Tidelands Oil Production Company operates near Long Beach, California July 30, 2013. REUTERS/David McNew/File Photo
FILE PHOTO: Oil rig pumpjacks, also known as thirsty birds, extract crude from the Wilmington Field oil deposits area where Tidelands Oil Production Company operates near Long Beach, California July 30, 2013. REUTERS/David McNew/File Photo