I'll go first. When I was a senior in college a few years ago, I interned for a Fortune 500 Oil and Gas company. Going into this job, I was a little naïve and often blamed large oil and gas companies for many of America's resource problems. Though I'm not ruling out that a lot of corporate leaders aren't greedy, I did learn the following that most wouldn't know unless they worked in the oil and gas industry:
Per every gallon spent at the pump, the government takes approximately 70% of what you pay for regulations, laws, etc. Next, after paying for the cost of refining and transporting product, America's largest gasoline providers make on average anywhere from 7 - 10 cents per gallon in profit.
This is why gas stations sell cigarettes, foods, etc. The profit margin on a pack of smokes and a 6 pack of beer is sometimes 5-10x more profitable than a few gallons of gas.
Needless to say, a lot of my liberal perspective in regards to oil and gas changed after my internship upon seeing how much we forked over to the govt every month :p