Pennsylvania Gov. Tom Corbett speaks during a news conference in front of a ConocoPhillips refinery, Tuesday, May 1, 2012, in Trainer, Pa. Delta Air Lines Inc. Monday, said it will buy the refinery as... more 
Pennsylvania Gov. Tom Corbett speaks during a news conference in front of a ConocoPhillips refinery, Tuesday, May 1, 2012, in Trainer, Pa. Delta Air Lines Inc. Monday, said it will buy the refinery as part of an unprecedented deal that it hopes will cut its jet fuel bill. (AP Photo/Matt Rourke) less 
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Associated Press | Photo By Matt Rourke
Tue, May 1, 2012 3:22 PM EDT