Their mindset is “Fossil fuels are still needed now, and if my company doesn’t grab them, someone else will” and it’s just so easy to continue getting those short term profits for their shareholders.
They may have long term plans for investment in renewables, but they won’t enact them until forced to (by government or market conditions). I imagine oil costs (and therefore profits) will skyrocket as it becomes more scarce, and they’d want to ride that all the way to the bank (and hell) before pivoting.
Basically, capitalism will be capitalism - its only moral is money. The only way is to have governments worldwide force them to change, and that ain’t gonna happen.