http://www.freerepublic.com/focus/f-news/548084/posts
Jones, D. S. J., Handbook of Petroleum Processing, Springer, 2006.
Rapid City Journal, http://www.rapidcityjournal.com/nie/archives/2004/062104.htm
Oil Exploration, http://www.bydesign.com/fossilfuels/links/html/oil/oil_find.html
ANWR Development, http://www.inforain.org/Northslope/anwr_3.htm
EPA Response, www.epa.gov/oilspill/response.htm
Oil Spills, http://www.factmonster.com/ipka/A0001451.html