The high-stakes clash between Exxon Mobil and Chevron over a prized South American oilfield may be a sign of what's to come ...

Trump backs Chevron's return to Venezuela oil fields, challenging GOP critics and reversing policy, as U.S. negotiates ...

ChevronCVX and Exxon MobilXOM reported second-quarter earnings and revenue before the stock market open Friday, with quarterly profit declines of more than 20% for both U.S. supermajors. The two ...