There are ads for oil companies https://www.theguardian.com/environment/2021/nov/18/the-forg...

Saudi Aramco had ads all over the world cup.

Oil companies and gas station chains? Sure, maybe not everywhere in the world but absolutely that exists.

And nowadays they're mainly trying to convince us that these companies are green and part of the zero emissions/carbon negative solution

In ads, oil companies usually call themselves "energy" companies.