Transport by rail costs more than by pipeline, but routing is more flexible and can begin almost immediately.

FORBES: Obama's Keystone Rejection May Provide A Buffett Bonanza

The "new Europeans" from the east are pushing the EU to get serious about developing new sources of energy -- starting with the stalled Nabucco pipeline that would cross Turkey and the Balkans, routing Central Asian gas around Russia.

WSJ: The Winter Gas War