Exxon’s Guyana Oil Discovery May Be 12 Times Larger Than Economy

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An Exxon Mobil Corp. discovery in the Atlantic Ocean off Guyana may hold oil and natural gas riches 12 times more valuable than the nation’s entire economic output.

The Liza-1 well, which probably holds the equivalent of more than 700 million barrels of oil, may begin producing crude by the end of the decade, Raphael Trotman, the South American country’s minister of governance, said in an interview Monday. The prospect would be on par with a recent Exxon find at the Hadrian formation in the Gulf of Mexico, and would be worth about $40 billion at today’s international crude price.