An oil pipe sits in the turntable assembly on a drilling rig, operated by Rosneft PJSC, in the Samotlor oilfield near Nizhnevartovsk, Russia, on Tuesday, March 21, 2017. Russia's largest oil field, so far past its prime that it now pumps almost 20 times more water than crude, could be on the verge of gushing profits again for Rosneft PJSC. Photographer: Andrey Rudakov/Bloomberg via Getty Images