Salym Petroleum Development's Siberian Oil Fields [Getty Images]

An employee crosses an access way beside an oil storage tank at the central processing plant for oil and gas at the Salym Petroleum Development oil fields near the Bazhenov shale formation in Salym, Russia, on Tuesday, Feb. 4, 2014. Salym Petroleum Development, the venture between Shell and Gazprom Neft, has started drilling the first of five horizontal wells over the next two years that will employ multi-fracturing technology, according to a statement today. Photographer: Andrey Rudakov/Bloomberg via Getty Images

Bloomberg Bloomberg