• Discovery will add to previous recoverable resource estimate of approximately 9 billion oil equivalent barrels
• Extensive well program testing play extensions and new concepts
• Liza Unity set sail from Singapore, production startup anticipated early 2022

IRVING, Texas--(BUSINESS WIRE)--ExxonMobil today said it made a discovery at Pinktail in the Stabroek Block offshore Guyana. The Pinktail well encountered 220 feet (67 meters) of net pay in high quality hydrocarbon bearing sandstone reservoirs. In addition to successful appraisal of the Turbot discovery, the Turbot-2 well encountered 43 feet (13 meters) of net pay in a newly identified, high quality hydrocarbon bearing sandstone reservoir separate from the 75 feet (23 meters) of high quality, oil bearing sandstone reservoir pay encountered in the original Turbot-1 discovery well. This follows the additional pay in deeper reservoirs encountered at the previously announced Whiptail discovery. These results will be incorporated into future developments.

�These discoveries are part of an extensive well program in the Stabroek Block utilizing six drillships to test play extensions and new concepts, evaluate existing discoveries and complete development wells for the Liza Phase 2 and Payara projects,� said Mike Cousins, senior vice president of exploration and new ventures at ExxonMobil. �Our exploration successes continue to increase the discovered resource and will generate value for both the Guyanese people and our shareholders.�

Separately, the Liza Unity floating production storage and offloading (FPSO) vessel set sail from Singapore to Guyana in early September. The FPSO will be utilized for the Liza Phase 2 development and is expected to begin production in early 2022, with a capacity to produce approximately 220,000 barrels of oil per day. ExxonMobil anticipates at least six projects online by 2027 and sees potential for up to 10 projects to develop its current discovered recoverable resource base. The Liza Destiny FPSO vessel is currently producing approximately 120,000 barrels of oil per day.

The Pinktail discovery is located approximately 21.7 miles (35 kilometers) southeast of the Liza Phase 1 project, which began production in December 2019, and 3.7 miles (6 kilometers) southeast of Yellowtail-1. Pinktail was drilled in 5,938 feet (1,810 meters) of water by the Noble Sam Croft. The Turbot-2 discovery is located approximately 37 miles (60 kilometers) to the southeast of the Liza phase one project, and 2.5 miles (4 kilometers) from the Turbot-1 discovery announced in October 2017. Turbot-2 was drilled in 5,790 feet (1,765 meters) of water by the Noble Sam Croft.

The Stabroek Block is 6.6 million acres (26,800 square kilometers). ExxonMobil affiliate Esso Exploration and Production Guyana Limited is operator and holds 45 percent interest in the Stabroek Block. Hess Guyana Exploration Ltd. holds 30 percent interest and CNOOC Petroleum Guyana Limited holds 25 percent interest.

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Cautionary Statement: Statements of future events or conditions in this release are forward-looking statements. Actual future results, including project plans, schedules, capacities, production rates, and resource recoveries could differ materially due to: changes in market conditions affecting the oil and gas industry or long-term oil and gas price levels; political or regulatory developments including obtaining necessary regulatory permits; restrictions in trade, travel or other government responses to current or future outbreaks of COVID-19; reservoir performance; the outcome of future exploration efforts; timely completion of development and construction projects; technical or operating factors; the outcome of commercial negotiations; unexpected technological breakthroughs or challenges; and other factors cited under the caption �Factors Affecting Future Results� on the Investors page of our website at exxonmobil.com and under Item 1A. Risk Factors in our annual report on Form 10-K and quarterly reports on Form 10-Q. References to �recoverable resources,� �oil-equivalent barrels,� and other quantifies of oil and gas include estimated quantities that are not yet classified as proved reserves under SEC definitions but are expected to be ultimately recoverable. The term �project� can refer to a variety of different activities and does not necessarily have the same meaning as in any government payment transparency reports.

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