FILE PHOTO: Oil pump jacks are seen at the Vaca Muerta shale oil and gas deposit in the Patagonian province of Neuquen, Argentina, January 21, 2019. REUTERS/Agustin Marcarian
FILE PHOTO: Oil pump jacks at Vaca Muerta in Argentina
FILE PHOTO: Oil pump jacks are seen at the Vaca Muerta shale oil and gas deposit in the Patagonian province of Neuquen, Argentina, January 21, 2019. REUTERS/Agustin Marcarian