From MSNBC news:
ANCHORAGE, Alaska – An estimated 201,000 to 267,000 gallons of crude oil spilled in the North Slope pipeline leak discovered March 2, state officials announced Friday.
That’s significantly more than what crews have so far recovered and much larger than the previous record for the North Slope — a 38,850-gallon spill in 1989.
The report on the spill prepared by Alaska’s Department of Environmental Conservation said that this was the worst disaster in the history of Trans-Alaska Pipeline system. "I can confirm it’s the largest spill of crude oil on the North Slope that we have record of," said Linda Giguere of the department.
Environmentalists say this would spell disaster for the ecosystem in the area. Officials have also confirmed that another leak has been discovered, this time in a site belonging to ConocoPhillips. The volume of the leak has not yet been disclosed.