"The minute Tesla and others get electric vehicles to have sufficient range and low enough costs, we're going to see demand for oil go into structural decline. "
No, sorry.
People have been predicted 'peak oil' and 'peak demand' since the 1970's.
Even a large number of Tesla's wont change that.
You do realize that there are a few billion 'carless' people in the world who are soon going to become 'cared'?
And they live in places that won't care about CO2, either from a policy or populist perspective?
And that there are a million other uses for oil other than family transportation?
The most salient issues in Aramco's valuation are:
1) Regime volatility: taxes etc. - not only will they change, they could change a lot.
2) Production and price volatility: a lot of geopolitical things go into how much they product, and there are massive shifts in prices over time. Booms and busts - not like most products (think Windows OS, or cars - they don't change that much in price)
3) Horizon: we're having to predict so far out into the future, there's considerable volatility just in that.
4) Cost of Capital leverage volatility: in a world of low interest rates, small changes in cost of capital tend to be amplified. Going from 5% to 10% is similar to 1% to 2%. Since we're in an era of very low interest rates, everything gets magnified and ballooned up.
I actually don't believe that alternative forms of energy production or transportation will make a dent in any of it.
There's so many ways to use Oil, that any drop in price introduces those mechanisms and it ends up becoming valuable again.