WASHINGTON (Reuters) - A House of Representatives panel will examine pipeline safety next week as Exxon Mobil Corp works to clean up a spill from a rupture in one of its lines in Montana that released as much as 1,000 barrels of crude oil.
The House Transportation subcommittee on Railroads, Pipelines, and Hazardous Materials plans to examine safety issue on Thursday but has not yet released a list of witnesses, according to a notice on the panel's website.
A 12-inch Exxon pipeline carrying crude oil to refineries in Billings burst a week ago, dumping up to 1,000 barrels of petroleum into one of America's most pristine rivers about 150 miles downstream from Yellowstone National Park.
Federal officials have said shoreline contamination has been observed over an area stretching at least 240 miles downstream from the spill site. Exxon has apologized for the spill and on Friday said it has stepped up clean-up efforts.
(Reporting by Jeremy Pelofsky; editing by Vicki Allen)