TNK-BP aims to spend about $1 billion on an acquisition abroad even as a shareholder dispute rages over the company’s future at home. TNK-BP, which is owned by BP and a group of billionaires, is looking for opportunities in Africa, the Middle East and Latin America to diversify operations away from Russia, deputy chief executive Maxim Barsky said. Russia’s third-largest oil producer agreed last year to acquire fields in Vietnam and Venezuela […]