Oil companies have plenty of horrible environmental impacts, but direct deforestation isn’t really one. If we look at Amazon deforestation for instance:

Extensive cattle ranching is the number one culprit of deforestation in virtually every Amazon country, and it accounts for 80% of current deforestation

https://wwf.panda.org/discover/knowledge_hub/where_we_work/amazon/amazon_threats/unsustainable_cattle_ranching/