https://imgur.com/wN5LfIH

So I made an patch to match its need, though looks like it won't help with actual generation:

data:extend({
{
type = "autoplace-control",
name = "deep_oil",
localised_name = {"entity-name.deep_oil"}
richness = true,
order = "b-e",
category = "resource"
}
})
.........
deep_oil.autoplace.control = "deep_oil"

i am not sure what to do about this. The deep sea oil is not actually placed by the game like other resources, since i don't know how to tell the game to place resources on water (and only there). Instead the oil is created by another method on chunck gneration.

I tested the combination of the 2 mods and did not get the error. And despite a short warning at game start, that deep_oil will not be spawned, deap sea oil does spawn anyway, since the method i used is independent from the standard resource generation.

This is really strange.. I came up with this problem in new version again. Codes above theoritically add an useless structure RSO want so it won't complain about this. And start-new-map menu will add a new resource called Deapsea Oil but it should do nothing, as Deapsea Oil is actually spawned by your control scripts.