Not directly, but the British and Americans were heavily supportive of the Saud dynasty, enough to have largely built for it its current place in the world. Aramco in fact originally stood for Arabian-American Oil Company, and was created by the Americans in order to work around the partitioning of middle eastern oil by Britain and France at San Remo. It wasn't even owned by the government until the 70s.

Sure, but oil wasn't found in Saudi Arabia until 1936 just in time for WW2 to wipe out the British Empire. This was well after the San Remo agreement.

The Saud dynasty did form an alliance with the US, but this wasn't until 1945. That's well after the what most people think of the colonial period, and the terms of the alliance were nothing like a colonial-style arrangement.

> Sure, but oil wasn't found in Saudi Arabia until 1936 just in time for WW2 to wipe out the British Empire. This was well after the San Remo agreement.

The effects of the agreement didn't magically go away just because the British empire was failing 16 years later though.

Being after the time people perceive as the colonial period isn't really relevant either, the arrangement is distinctly neocolonial rather than colonial and absolutely built the current strength of the Saudi regime. Of course that isn't to ascribe any unique evil to any of the players, the arrangement was very profitable for the Sauds and the Americans, and pursuit of profit, not geopolitical foresight is what drives any arrangement like this.

The arrangement where they sell goods on the open market and we buy them?

Not goods at all, nor really an open market. Permission to drill was granted to American companies in exchange for a share of the profits to the royal family, and from that point forward the American government began to defend the interests of its corporations geopolitically. Very normal sort of arrangement, but absolutely responsible for the power and strength of the Saudi regime today.

Saudi Aramco is owned by the Saudi government. The Saudis have repeatedly been a pain in the ass to the US including the embargo, long before Prince Bonesaw and the savage murder he orchestrated.

Aramco was an American company though. The modern Saudi Aramco was founded in 88, and the underlying assets weren't actually Saudi-owned at all until the 70s.