Chevron Corp. has won U.S. approval to resume and expand its oil operations in Venezuela, the U.S. government announced on Saturday. The Treasury Department said Chevron has been issued an expanded license to import petroleum or petroleum products produced by its joint venture with PDVSA, the Venezuelan state oil-firm. The approval comes after talks resumed between the Venezuelan government, led by socialist President Nicolás Maduro, and the opposition Unitary Platform. 

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