Russia is the world's largest exporter of natural gas, and it has used that power before as a geopolitical weapon. But the US recently became the biggest producer of natural gas due to new fracking technology. And the US is working to use its new might to undercut Russia's sway over Europe.
The US Senate began hearings today on the oil spill disaster in the Gulf of Mexico. It's the first opportunity lawmakers have had to publicly question the companies involved. The World's Katy Clark reports.
Much of the uncertainty Iraqis feel is about the economic future of their country.Those prospects depend largely on the recovery of Iraq's oil industry. The World's Katy Clark reports that Iraq's oil is flowing again.