Today a 9th Circuit court in San Francisco hears arguments on the legality of California's, first in the nation, low carbon regulation for transport fuel. The case may determine whether California becomes the U.S. leader in climate litigation.

The OPEC oil embargo nearly 40 years was a shock to the U.S. and its economy. But the long-term effects proved a shock to Saudi Arabia and other OPEC members, who learned that oil and politics don't mix.

Civi war combatants mindful of the importance of oil on the economy, left infrastructure largely undamaged.

The U.S. can become less dependent on foreign oil, but it's still a part of the global oil market –and that means no insulation from oil price shocks.

An oil well may seem pretty useless when the light sweet crude stops flowing. In Texas, researchers and entrepreneurs see a chance to recycle old wells and create geothermal power.

And a new app helps you separate fact from baloney in political ads.

But it probably won't have much impact on consumer's pocketbooks, especially when it comes to the price of gas or electricity.

Wangxiang Group, China's biggest auto-parts conglomerate, has offered $450 million for a controlling stake in a Massachusetts electric car batteries company.

And can power your house. Plus, don’t go online before bed because it made some hamsters depressed.

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?