hello
i use some old mod for generating maps (https://mods.factorio.com/mod/ctg) but sadly it doesnt spawn oil on water ... would it be possible to force those 2 to work together somehow ?
i guess problem is that this mod disable vanila water generation and make its own and then no oil but it can really make some cool maps for ships (half land preset or big lakes imo best) so its shame i cant use them both
EDIT: well it seems it can spawn oil but really really ... really rare (mayby it spawn in deep water only but there not much those) , i got 1 in huge ocean and with 400% only so not worth making route there, could someone tell me pls then how can i get it to spawn more often or even better with more % pls ?

There is a setting to increase richness, but the frequency is set by the vanilla oil generator. Maybe excluding shallow waters needs to be optional.

looking at my map if oil could spawn in shallow waters it sure would fix my problem

well i found some file in mod folder (oil placement) and i edited it to let spawn oil when less deep water and increased richness x10 so mayby it will work for me now (generating map atm) , dont know how to make it spawn more often or in shallow water tho
anyway i also found in this file that cargo ships mod checks if there is ctg mod enabled just it doesnt work like it should now , mayby it worked back then when frequency was from cargo ships not from vanilla oil generator

You have to change the oil frequency in the Vanilla resource generator to make it more frequent. The Vanilla richness setting will also affect it.

i did that , made oil max while all rest near 0 and still no oil in water ... i left map to generate for hours and not single oil this time
i guess it has something to do with ctg water removing ores with RSO , mayby it remove oil too for some reason

ok i started to generate new map, same settings (oil frequency max) and this time i got some of them spawn , even in shallow water , in fact they spawn quite ok now (only problem left is that there is too much oil on land)
dunno why there was no single oil on map i generated before, all settings were same just changed seed ...
anyway it would be cool if old setting for frequency was back cos now all options i got is either get ton of land oil and some on sea ( i can make that sea oil super rich changing oil placement file) or only sea oil cos when i set all oil frequency to low ,sea oil spawn very very very rare and cant count on it really

There's a setting to disable all land oil if you want. Sorry that's all the control we have right now.

yea its cool , tbh more i think of it more i like idea to make oil only on sea, semi rare but ultra rich :)