Well, the article outlines how oil companies influenced our lack of climate action. So the question is not "did they have an impact", it's "how much impact did

Well, the article outlines how oil companies influenced our lack of climate action. So the question is not "did they have an impact", it's "how much impact did they have". And given how the feedback loops of climate inaction and climate change work, even a little push in the wrong direction is likely going to be responsible for millions of deaths before the century is out.