I just added Immersive Petroleum and now the server crash on world load.
It's a conflict about the oil world generation.
I did try the solution given by the crash reports but either I've done it wrong or it doesn't work.

Crash Report: crash-2017-11-10_02.58.55-server.txt

Minecraft: 1.12.2
Forge: 2531
Mods: list.txt

I tested an instance with both mods installed and couldn't reproduce the crash. But without the injectedDependencies.json I couldn't properly load my saved world (some pnc stuff missing). After I created the file and added [{"modId": "immersivepetroleum","deps": [{"type":"after","target":"pneumaticcraft"}]}] everything seems to load fine.

I've actually just pushed a change which appears to resolve the problem without the need for a separate dependency injection. I've tested on a dedicated server instance and it starts up fine.

Note that IP actually replaces three PNC:R fluids (oil, diesel and lubricant). With this change, PNC:R behaves better if it finds one of its fluids already registered; however, if the other mod hasn't registered a block for the fluid, then PNC:R won't either (note that IP does create blocks).

In my testing, all three fluids appears as the IP fluid. Compatibility looks good - IP oil works in the PNC:R refinery, and IP lubricant can be used to make PNC:R speed upgrades. Diesel should work in the PNC:R thermo plant, but I didn't test that (JEI at least claims it works).

Well, that was fast! I can confirm it works. Thank you.

Excellent, closing this now.

The solution in the crash report does not make sense. You could try:
[{"modId": "immersivepetroleum","deps": [{"type":"after","target":"pneumaticcraft"}]}]

Yeah, you're right. It doesn't make much sense. I'll see if I can get IP added to my dev instance today and have a play, but it might not happen until Monday...

I definitely do want oil compatibility between IP and PNC:R so count on this one getting fixed :)