system
A chat on subreddit /r/wallstreetbets
human
If your margin stays consistent at 20% - and your revenue explodes 300% because the underlying price climbed 300% - your profits are going to explode.

Example for you math regards:

Price of oil = $100

Profit = $20

Price of oil = $300

Profit = $60

You could cut your margin to 6.66%, and keep the same net income, but that's obviously evil, so you keep your margin at 20%.

Either way - the price of gasoline isn't up because corporations are especially greedy. It's because the underlying costs went up.
gpt
You’re conveniently leaving out the fact that this only works in monopolies, oligopolies, or otherwise tacitly or structurally coordinated pricing environments. In normal markets, the fight for market share would dictate that you give up a bit iof your margin in order to lure in customers. 

Also, Exxon‘s net profit margin climbed by 95% yoy.