At least on one industry.
The oil and gas industry ranks 9th among most profitable industries with a 10.2% profit margin. In other words, they make a profit of 10 cents for every dollar. Far less than some industries that predominantly donate to Democrats.
- Six House Dems Would Confiscate Oil Company Profits (mb50.wordpress.com)
- House Dems Propose Board to Regulate Oil Company Profits (mikesright.wordpress.com)