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U.S. oil and gas major ExxonMobil has added 2.7 billion oil-equivalent barrels of proved oil and gas reserves in 2017, replacing 183 percent of production.
ExxonMobil’s proved reserves totaled 21.2 billion oil-equivalent barrels at year-end 2017, the company said on Thursday.
Liquids represented 57 percent of the reserves, up from 53 percent in 2016. ExxonMobil’s reserves life at current production rates is 14 years.
Darren W. Woods, chairman and chief executive officer, said: “Our exploration success and strategic acquisitions made during a period of low commodity prices are adding high-quality resources that are among the lowest cost of supply in the industry.”
Woods added: “ExxonMobil’s portfolio of development opportunities positions us to grow shareholder value as we bring on new supplies of oil and natural gas to meet growing demand.”
During 2017, proved additions at Upper Zakum in Abu Dhabi totaled more than 800 million barrels of crude oil. Additions from liquids-rich unconventional plays in the United States, 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.
Other significant new proved reserve additions were made in Guyana, where the company funded the first phase of development last year, and in Mozambique, associated with the project funding of the Coral FLNG project in the gas-rich deepwater Area 4.
Offshore Guyana, ExxonMobil has discovered recoverable resources, including current proved reserves and additional resources, estimated to be 3.2 billion gross oil-equivalent barrels prior to the 2018 Ranger discovery. Production from Liza Phase 1 is expected to begin by 2020, less than five years after discovery. In Mozambique, ExxonMobil acquired a 25 percent indirect interest in Area 4, which contains an estimated 85 trillion gross cubic feet of natural gas in-place.
According to the company, reserves additions reflect new developments as well as revisions and extensions of existing fields resulting from drilling, studies and analysis of reservoir performance.
Consistent with SEC requirements, ExxonMobil reports reserves based on the average of the applicable market price prevailing on the first day of each calendar month during the year. As a result of higher prices in 2017 relative to 2016, about 900 million oil-equivalent barrels in North America qualified as proved reserves under SEC guidelines due primarily to the extension of the projected economic end-of-field-life.