i´ve seen oil spawn in lots of places that it should´nt be in, like in the air, on trees or just in places that it should´nt spawn
i took a screenshot of it:

thx.

There is a partial bug here, the oil geyser (on the right) is as it's meant to be.
On the left there is a bug where oil appears on top of trees. See #4002

I'm pretty sure those are oil geysers or whatever they're called, I think it's intentional

As of right now, oil still spawns on trees for some reason.

Yeah, I've not looked at fixing this yet :/

Could it be fixed by maybe blacklisting blocks such as leaves and logs as valid spawns for oil? If not, it's not too big of an issue right now lol, I'm sure there's bigger fish to fry.

Not really unfortunately as that's kinda hacky. Ideally all I need to do is make oil generate before trees and other structures are generated.

Makes more sense I guess.

我在工业的服务器里面经常遇到这种情况，比如漂浮的铁轨，和这个情况
I often encounter this situation in industrial servers, such as floating rails, and this situation
还有，谷歌的翻译有时候真的很糟糕
Also, sometimes Google's translation is really bad