China probably loses at least temporarily in the runaway climate change event due to destroyed cropland and refugees. The U.S. has exposure on both sides so it's a little more moot for us. We'll lose quite a lot of biodiversity, and may take a big hit to agriculture but we're banking petrodollars and have so much upside when people move to virtual reality we'll be fine. If we were horribly exposed Dems/Reps wouldn't be split on the issue, as clueless as they are.
And of course there are the Saudis and corporate/investment petro interests you allude to.
Russia/Saud/Exxon vs China with U.S. on the sidelines... not sure who wins there.
I really hope we can transition to sustainable energy, but there are big players that stand to gain from delaying it until the reserves are burnt. It's not a bet I would take but I understand why people would bet on there being plenty of feet sticking out to trip up Tesla and co.