1174-3118 - An oil derrick, a well head pump arm with frame, silhouetted against the evening sky. Oil business, Oil field pumpjack, Saskatchewan, Canada
832-378278 - Natural gas is flared off as oil is pumped in the Bakken shale formation; the gas is burned because no pipelines have been built to transport it to market, Watford City, North Dakota, United States, North America
83-11927 - Working pumpjack near Rangely in the desert plateau oilfields of the Rio Blanco area in the far north west. War needs stimulated drilling here in the 1940s, north west, Colorado, Utah, United States of America (USA), North America