OAO Gazprom Neft, the crude- producing arm of Russia’s natural-gas exporter, boosted proved and probable reserves 8.8 percent last year to 14.2 billion barrels of oil equivalent.

The reserves reached 11.6 billion of oil and 15.7 trillion cubic feet of gas under Petroleum Resources Management System standards, Gazprom Neft said today in an e-mailed statement. The reserves replacement ratio was 379 percent, it said.

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