Big Oil? Jeez, how naive...
Big oil has examined the merits of alternate energy sources, and they keep coming back to oil as the most efficient energy source. And the same is true for the big car companies, who have also examined the merits of EVs, and continue making the vast majority of vehicles to be fossil-fuel powered.
The only reason EVs are being produced, is because government has subsidized the research and production, and that same government has essentially "forced" those companies to produce those vehicles. The market for EVs is being artificially defined or created by government. Otherwise, nobody would ever buy one, and no companies would ever undertake to produce them or even research them.
