An oil worker inspects a pumping jack, also known as a 'nodding donkey,' during drilling operations in an oilfield operated by Bashneft PAO in the village of Otrada, 150kms from Ufa, Russia, on Saturday, March 5, 2016. Bashneft is an upstream and down stream oil & gas provider which explores, produces and refines its own oil and gas which it extracts from brownfield reserves in the Russian Federation. Photographer: Andrey Rudakov/Bloomberg via Getty Images
