BP's Alaska

The extensive pipeline system that moves oil, gas and waste throughout BP's operations in Alaska is plagued by severe corrosion, according to an internal maintenance report generated four weeks ago. As of Oct. 1, at least 148 BP pipelines on Alaska's North Slope received an "F-rank'' from the company. According to BP oil workers, that means inspections have determined that more than 80 percent of the pipe wall is corroded and could rupture.