Oil is not everything. Otherwise Venezuela and Saudi Arabia would be world leaders.
Russia is purely an extraction state
And right now, China has them "over a barrel", litterally. Assuming the buyer is the "junior partner" is a fundamental misunderstanding of capitalism.
Venezuela doesn’t produce. Yet. PetroChina and Rosneft are incrementally addressing that.
KSA has 40 million people and only 60% are citizens. They ship in Bangladeshis and Pakistanis to work the oil fields and provide the native population with lives of leisure. They extract 11 million bpd and consume . . . an amazing amount for just 40 million. They are on the verge of surpassing Japan.
And since oil is everything, there’s not much doubt they have lives of considerably more luxury than Japan with 3-4X the population.
Best, always, to measure wealth in joules. Not dollars. Dollars are created from thin air by central banks. Joules are created by God.