State, feds seek hefty fines for BP Alaska’s 2006 spill
http://www.adn.com/money/industries/oil/prudhoe/story/743678.html
The link above contains additional information and links to original stories on the spills.
Did they or did they not clean it up? Was there any lasting damage done?
I ask this because I've seen oil spills around the oil fields and how quickly they leap through hoops to clean it up. They've got it down to an art-form and a science.
In short order you'd never know the difference.