The Coast Guard is responding to a report of an allision between a tug pushing a barge and a pipeline near Bayou Perot 30 miles south of New Orleans, Tuesday. Coast Guard Sector New Orleans watchstanders received a report that the 47-foot tug Shanon E. Settoon was pushing a 154-foot oil barge when it allided with a pipeline 6 p.m., Tuesday. All crew members were able to exit the tug; the captain reportedly suffered second to third-degree degree burns. A Coast Guard Air Station…