As title says, i've travelled a lot and haven't found any oil to place a rig on...
as this is a mod that changes map generation, i think this is appropriate place to ask

The mod only changes the terrain, all ores and stuff stay the same. It does however mean that when ground is changed to water, the ore is destroyed.

I don't know how "cargo ships" works, so don't know what I need to do to make it compatible, and thus I also did not do anything specific to make it compatible. So I fear there is a good chance it won't work :(

yes, it actually doesn't :(
disabled Factorio world, generated new chunks, and everything appeared

Ah sucks :(

I'm currently not really playing Factorio any more, so I only update this mod if there are breaking bugs in new versions. But I'll keep this in mind if I ever update it to a newer version.

The code is open source though, so if you are a programmer, feel free to make a PR and I'm happy to merge it in :D