ExxonMobil added 2.7 billion oil-equivalent barrels of proved oil and gas reserves in 2017, replacing 183% of production. ExxonMobil's proved reserves totaled 21.2 billion oil-equivalent barrels at year-end 2017. Liquids represented 57% of the reserves, up from 53% in 2016. ExxonMobil’s reserves life at current production rates is 14 years.
Additions from liquids-rich unconventional plays in the U.S., mainly in the Permian Basin, totaled approximately 800 million oil-equivalent barrels. Additions in the Permian are supported by ExxonMobil’s growth plan and increased drilling activity, expected to increase daily production to more than 600,000 oil-equivalent barrels by 2025.