Gran Tierra's yr-end total proved oil reserves up 7 pct

Gran Tierra Energy Inc, a Canadian oil and gas exploration company, said year-end total proved oil reserves rose 7 percent to about 23.6 million barrels of oil. Gran Tierra, which has assets in Colombia, Argentina and Peru, said total proved plus probable oil reserves were up 11 percent to about 31 million barrels of oil.
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Source: Reuters