Congress wasn't able to come to an MTBE deal in the energy bill so the additive won't be added anymore leading to higher gas prices:
One of the nation's largest refiners, Valero decided this week to stop producing and blending the additive MTBE in gasoline. The company said it was taking the action because refiners didn't receive liability protection regarding the additive in the energy bill passed last week by Congress. ...
The decision could cut Valero's production of gas for the U.S. market by 2.5 million gallons a day, the company warned. The biggest effect would be felt next spring after the bill has taken effect.
If other refiners follow its lead, Valero said, the market could lose a total of about 10.9 million gallons of gas a day. None of the other majors could be reached for comment. It could take about a year to restore even half of the lost capacity, Valero spokeswoman Mary Rose Brown said in the statement.
If you don't believe USAToday, here is the link to the WSJ article.