The petroleum or oil industry in Russia is one of the largest in the world. Russia has the largest reserves and was the largest exporter of natural gas. It has the sixth largest oil reserves, and is one of the largest producers of oil. It is the fourth largest energy user.
In 2009, Russia produced 12% of the world's oil and had a similar share of global oil exports. Russia produced an average of 10.83 million barrels of oil per day in December 2015. From Wikipedia
