Vast oil pool tapped in Gulf of Mexico (AP)

WASHINGTON - A trio of oil companies led by Chevron Corp. has tapped a petroleum pool deep beneath the Gulf of Mexico that could boost the nation's reserves by more than 50 percent. A test well indicates it could be the biggest new domestic oil discovery since Alaska's Prudhoe Bay a generation ago. But the vast oil deposit roughly four miles beneath the ocean floor won't significantly reduce the country's dependence on foreign oil and it won't help lower prices at the pump anytime soon, analysts ...