Influx of Corporate Political Cash Followed Pivotal Federal Court Decision http://www.opensecrets.org/news/2011/03/influx-of-corporate-political-cash.html

And corporate treasury money accounted for about $15.5 million of the cash donated to so-called "super PACs" -- political committees created by the dozen in the ruling's wake, the Center for Responsive Politics finds. That represents more than 17 percent of these new groups' funds.A significant portion of all corporate donations to super PACs came from companies with interests in the energy sector, according to the Center's research. These organizations combined to give more than $5.6 million to super PACs -- more than 36 percent of all corporation donations to these new groups.These energy-related companies include Alliance Resource Partners, TRT Holdings, Aghorn Energy, the Anschutz Corporation and Tessco Energy Services, among others.