TNK-BP highlights reserves potential

TNK-BP's proved oil reserves could more than double if different reserves definitions are used, says John Browne, chief executive of BP. And they could increase by seven times if TNK-BP's estimate of additional recoverable resources proves accurate. The newly formed Russian major's estimated proved reserves, according to US Securities and Exchange Commission (SEC) rules, amount to 4.1bn barrels. But these take into account only reserves recovered during licence periods. Browne says the total would more than double, to 9.4bn barrels, under Society of Petroleum Engineers (SPE) rules, which take into account oil recovered during the economic life of fields. The figures were revealed at presenta