This week, 44 senators - 43 of them Republican - are introducing legislation to circumvent the Obama administration and approve the Keystone pipeline. Much to no one's surprise, most (35) got lots of money ($644,400) from some of the pipeline's biggest corporate backers - ie: big oil.
The most active companies and trade associations lobbying for the pipeline over the last three months were: The U.S. Chamber of Commerce, ConocoPhillips, the Business Roundtable, Shell Oil, ExxonMobil, the American Petroleum Institute, the National Association of Manufacturers, the National Petrochemical & Refiners Association, Deere & Company, TransCanada Pipelines, and Devon Energy.
From ThinkProgress, more on who's getting what. Numbers based on PAC data from the Center for Responsive Politics.