It depends on who you ask: industry or environmentalists. There are still pockets of oil there. You should go to the NOAA site for the best answer to this question.
Alaska
It spilled around Prince William Sound
Prince William Sound where Bligh reef tangled with the Exxon Valdez.
The T/VExxon Valdez ran aground on Bligh Reef in Prince William Sound, Alaska on March 24, 1989. The Exxon Valdez Oil Spill Trustee Council website contains detailed information on the spill, its impact on the environment and people living in the spill region, and current environmental conditions.Prince William Sound is on the south-eastern side of Alaska, closest to the Yukon Territory and on the Pacific ocean.
The current oil spill, 2010 BP Oil, is currently at the Gulf of Mexico. If you're asking for the Exxon Valdez Oil Spill, the spill took place at 1989 in Prince William Sound, Alaska.
Alaska, when the Exxon Valdez went aground on March 24, 1989 in Prince William's Sound.
He caused the Exxon Valdez oil spill.
The Exxon Valdez oil spill occurred in Prince William Sound, Alaska, on March 24, 1989, when the Exxon Valdez, an oil tanker bound for Long Beach, California, struck Prince William Sound's Bligh Reef and spilled 260,000 to 750,000 barrels of crude oil. It is considered to be one of the most devastating human-caused environmental disasters.
Oil spill, Prince William Sound, Al.
The Exxon Valdez oil spill was on midnight on March 24, 1989. It was considered as the second worst oil spill in US history.
The Exxon Valdez spill affected far more than three locations; the oil slick eventually covered 11000 square miles of ocean, much of Prince William Sound.
The oil spill occurred in Mississippi canyon block 252 about 50 miles off the coast of Louisiana in the Gulf of Mexico.