Spanish oil giant Repsol currently controls Argentina's largest national oil company, but perhaps not for long.

The president wants $52 million to help the Commodity Futures Trading Commission shore up industry oversight, something analysts say will do little to oil prices.

President Obama announced a new crackdown on illegal manipulation of oil prices by traders. He's asking for stronger regulations, bigger penalties for violators and more cops on the regulatory beat.

India is a U.S. ally but also one of the top importers of Iranian oil. It could face U.S. sanctions unless it curbs these oil purchases.

Squeezed by high oil costs and shrinking demand, major changes are coming in the oil refinery biz.

The president wants lawmakers to repeal $4 billion worth of tax breaks that oil companies currently get. How much of an issue are these subsidies?

The defeat of a U.S. Senate bill to end oil company subsidies leads us to wonder: What would actually happen if subsidies ended?

President Obama is touting a new "all of the above" energy plan that supports more of both oil and alternative energy production. What do Americans want in an energy policy?

The promise of steady work is attracting workers of all ages to Williston, N.D., and creating a new boom town on America's energy frontier.