http://today.reuters.com/misc/PrinterFriendlyPopup.aspx?type=bondsNews&storyID=uri:2006-05-16T170111Z_01_N16411334_RTRIDST_0_ENVIRONMENT-EXXON.XMLWASHINGTON, May 16 (Reuters) - Oil spilled 17 years ago by the tanker Exxon Valdez still threatens wildlife around Alaska's Prince William Sound, scientists reported on Tuesday, a finding that could add $100 million to cleanup costs for Exxon Mobil Corp <XOM.N>.
ExxonMobil has already paid $900 million to help recovery from the 1989 spill, the worst in U.S. history.
But the state of Alaska and the U.S. government could ask for up to $100 million more if they can show there is substantial, continuing environmental damage caused by the spill, and that the damage could not have been anticipated when a settlement with Exxon was signed in 1991.
A study by researchers at the National Marine Fisheries Service in Juneau, Alaska, indicates about six miles (9.6 km) of shoreline around Prince William Sound is still affected by the spill, with 100 tons (101.6 tonnes) of oil remaining in the area.
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