Hill & Knowlton is doing lobbying work for Enbridge Energy Co., the Houston-based arm of the Canadian pipeline company that transports 13 percent of U.S. oil imports.

H&Ks Gordon Pennoyer, who was director of media operations for the 2008 Republican National Convention, handles the Washington effort.

Enbridge, on Oct. 3, announced a $100M expansion to provide increased access of Canadian shale oil to refineries in the midwest.

The company took a turn in the U.S. national spotlight last September when 800,000 gallons of its oil gushed into the Kalamazoo River in Michigan damaging 35 miles of the waterway.

Enbridge disclosed this month that that the clean-up will cost $700M, $50M over its pollution liability insurance policy coverage.

The Environmental Protection Agency said Oct. 6 that it expects the mop-up and monitoring operation will continue into 2012 as pockets of submerged oil remain beneath the river.