TransCanada Corp. (TRP) is considering ways to deliver Canadian crude oil by rail to the U.S. as customers of its proposed Keystone XL seek an alternative to the delayed pipeline, Chief Executive Officer Russ Girling said. The pipeline company is exploring how to modify existing contracts with Keystone XL customers to allow for rail shipments as it awaits U.S. permits for the pipe, Girling said in an interview yesterday at Bloomberg headquarters in New York . A rail option, which may cost twice as much as sending the crude via Keystone, would be an inefficient way of transporting the oil, he said. The trigger for pushing ahead with rail was the Obama administration’s April 18 announcement that it was delaying a decision on the $5.4 billion project because of a court battle in , Girling said. A rail option would have much lower upfront costs than the pipeline — […]