Conventional oil well pump jack and a hydraulic pumping unit on the same oil well pad in Utah, USA. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Jon G. Fuller, VW PICS |
Taille de l’image : | 6000 px × 4000 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |