Scientists find conventional crudes similarly corrosive to oil sands mix
Activists opposed to the Keystone XL pipeline believe the crude it would carry would make it more prone to leaks than the existing 52,475 miles of pipelines the United States has to transport conventional crude oil. Their fears have been underscored by a statistic: Alberta has two pipeline failures per 1,000 miles of pipeline every year. In comparison, the United States has 1.7 failures for every 1,000-mile stretch. The difference, it is thought, is that Alberta's pipelines transport diluted bitumen, also called dilbit.