Global offshore oil production (including lease condensate and hydrocarbon gas liquids) in 2015 was at the highest level since 2010, and accounted for nearly 30% of total global oil production. Offshore oil production increased in both 2014 and 2015, reversing consecutive annual declines from 2010 to 2013. Production from onshore tight oil plays has increased faster over the past several years and accounts for an increasing amount of total oil production, according to the U.S. Energy Information Administration.
More than 27 million barrels of oil were produced offshore in 2015 in more than 50 different countries. Global oil production is expected to remain high in 2016, as many oil-producing nations continue to increase production. A significant amount of global offshore production is concentrated in a few countries. In 2015, five countries provided 43% of total offshore oil production: Saudi Arabia, Brazil, Mexico, Norway and the U.S.