The pro-Barack Obama SuperPAC Priorities USA plans to start airing this spot in Florida, Colorado, Iowa, Michigan, New Mexico, Nevada, Ohio and Virginia. It's a response to an ad by the American Energy Alliance attacking Obama over gas prices. Here's the script for the Priorities ad:

Who’s behind this ad smearing President Obama?
 
Big Oil, that’s who.
 
The money they make from high gas prices – is going right into Mitt Romney’s campaign.
 
Big oil executives have pledged two hundred million to help him.
 
And Mitt Romney’s pledged to protect their record profits – and their billions in special tax breaks too.
 
These guys all profit.  You pay the price.
 
Priorities USA Action is responsible for the content of this advertising.