reported on the forums and i've been pinged about it by 3 other people in the last days, didn't had time to verify it yet, will do that this evening unless somebody verifies it before that

http://mod-buildcraft.com/forums/index.php?topic=968.msg11789;topicseen#new

problem reported for BC 6.0.18, didn't hear any reports of it for the 6.1 branch but will verify with that as well

Test with the latest BC 6.0.x build from the devtree - I pulled in a fix 2 days ago related to the oil generation.

tested with both 6.0.x and 6.1.x from github repo in my dev environment, with both i was unable to find any oil anywhere. did find a holes in the dessert that look like empty oil pools, and one 'shaft' in the ocean that also looks like a massive oil geiser i once found in an older survival world

Could you try with Forge 10.13.0.1179 or 1206? I think the latest Forge builds played with worldgen some, and 1179 is the one BC is "certified" to work on.

issue tracked down: something is messing with the config files, the modifyWorld property was set to false thus dissabeling oil generation, the default is indeed true in the code but it was off without me ever opening that config file before

W8. Modify world = FALSE, but holes still appear?

it is possible that in those holes where vanilla wordlgen abnormalitiesn i don't have any better explanation for it

I don't remember anything like that.

using seed 111, it still seems to be broken here. Using BC 6.1.8

I can't seem to find any oil either.

After adding Ocean to the excessiveBiomeIDs and finding an ocean biome I found oil. It seems that oil generation chance has dropped significantly since the last time I played, I was only able to find a single oil spring in a forest after traveling several kilometers in creative.

So, I just thought of something.

Before I say it, keep in mind that what I'm gonna say comes from a person that knows next to jack about minecraft mod making.

Also keep in mind, that unlike AEnterprise, I get oil in the other biomes normally. It's only the oil field biomes I can't find oil on.

With that being said, here I go.

So, I thought.....could it be that oil generation happens BEFORE the Oil Field biomes are generated?!?

We on our modpack are not getting any oil at all.
I will try investigate in a moment.

Spent 1.5h and no idea why it is not working only problem I found is that surfaceDeviation is extremely strict rule.

Fixed!