IN AN OCTOPUSES' GARDEN THERE IS OIL. Goodly amounts of the stuff, apparently.

Chevron on Tuesday estimated the 300-square-mile region where its test well sits could hold between 3 billion and 15 billion barrels of oil and natural gas liquids. The U.S. consumes roughly 5.7 billion barrels of crude-oil in a year.

But there is the tension between tourism interests and extraction interests.

The proximity of the Gulf of Mexico to the world's largest oil consuming nation makes it especially attractive. And it could bring pressure on Florida and other states to relax limits they have placed on drilling in their offshore waters for environmental and tourism reasons.

There's still work for me, distinguishing marginal and inframarginal suppliers.

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 said.

"It's a nice positive, but the U.S. still has a big difference between its consumption and indigenous production," said Art Smith, chief executive of energy consultant John S. Herold. "We'll still be importing more than 50 percent of our oil needs."

Sure, but the opportunity to defund Iran or Venezuela or Saudi Arabia is there.