Oil discovery rocks Brazil

RIO DE JANEIRO, Brazil (AP) -- A huge offshore oil discovery could raise Brazil's petroleum reserves by a whopping 40 percent and boost this country into the ranks of the world's major exporters, officials said.
A gas station worker refuels a taxi with natural gas at a Petrobras gas station Thursday in Rio de Janeiro, Brazil.
The government-run oil company Petroleo Brasileiro SA, or Petrobras, said the new "ultra-deep" Tupi field could hold as much as 8 billion barrels of recoverable light crude, sending Petrobras shares soaring and prompting predictions that Brazil
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