Quick Answer
The safest first pre-blue-science oil block is to let Basic oil processing serve your urgent Petroleum gas demand first, then introduce Advanced oil processing and cracking only after plastic, sulfur, and sulfuric acid are genuinely pulling hard enough. The official Oil processing wiki logic is still simple: basic refining gives petroleum gas, while advanced refining splits heavy oil, light oil, and petroleum gas. So the usual failure is not “I forgot a ratio.” It is “I tried to solve every fluid problem before the first one was even real.”
Split the first oil block like this
| Stage | Priority | Good-enough target | Why |
|---|---|---|---|
| The moment oil unlocks | Pumpjacks into refineries with basic processing only | Stable petroleum gas production | Before blue science, your urgent blocker is usually plastic and sulfur, not elegant heavy-oil planning |
| First plastic and sulfur phase | Feed petroleum gas into plastic bars and sulfur first | Red circuits and chemical science support stop stalling | Science and key intermediates should win the first priority fight |
| Demand starts backing up | Add Advanced oil processing | Heavy, light, and petroleum become readable as separate layers | Only now does “which fluid is blocking?” become a real question |
| One fluid starts filling up | Add heavy-to-light or light-to-petroleum cracking intentionally | No long production stalls from backed-up tanks | Cracking is a pressure release tool first, not a badge of sophistication |
| Later expansion | Add tanks, pumps, and readable checkpoints | You can tell which fluid is blocking at a glance | Oil troubleshooting is harder than placing the first buildings |
Quick steps
- On the first pass, build only the shortest path that works: oil wells to refinery to petroleum gas to plastic or sulfur.
- Do not place a full museum of tanks immediately; give yourself one or two observation points where blockages are most likely.
- Upgrade to advanced oil only after the petroleum demand is real and persistent.
- Before adding cracking, ask whether the issue is true demand or just one fluid having nowhere to go.
- Keep pipes, pumps, and the direction of flow readable enough that you can debug the block in seconds later.
Four version-aware checks on 2026-06-15
| Source | Confirmed point | Best practical takeaway |
|---|---|---|
Official wiki Oil processing | Basic oil processing outputs petroleum gas only, while Advanced oil processing produces heavy oil, light oil, and petroleum gas | Your first oil block can be built directly around petroleum needs |
Official wiki Oil processing | Heavy oil cracking converts heavy oil to light oil and Light oil cracking converts light oil to petroleum gas | Cracking is for unclogging and feeding lower layers, not for instant full complexity |
Official wiki Tutorial:Quick start guide | The early and midgame still reward gradual expansion around actual production needs rather than fully finished endgame planning from the start | Oil should also be staged by need, not by aesthetic perfection |
Official Friday Facts #440, published on 2026-06-06 | 2.1 experimental is still in its late-June 2026 rollout window, while stable factory planning remains grounded in the 2.0 / Space Age baseline | Current content should stay on the stable fluid logic, not on experimental assumptions |
Before you try it
- The first oil setup is about keeping science and plastic alive, not about building the cleanest all-purpose refinery district immediately.
- If blue science is the blocker, protect plastic, sulfur, and sulfuric acid first, then solve the prettier fluid questions.
- On 2026-06-15, 2.1 is still not the default stable baseline, so do not rebuild everything around speculative future tweaks.
Watch checkpoints
The public upload does not expose stable visible chapter timestamps here, so pause by function:
- First well-to-refinery explanation: confirm the shortest working chain.
- Petroleum gas destination explanation: note what the first chemical outputs are actually feeding.
- Advanced oil explanation: focus on when to upgrade, not just what the recipe icon looks like.
- Cracking explanation: identify which blockage each crack step is actually solving.
- Tank and pump layout examples: note where the debugging information becomes readable.
Common mistakes
- Building advanced oil, both cracking steps, solid fuel, and oversized storage all in one first draft.
- Protecting theoretical future heavy-oil uses while present-day petroleum demand is starving plastic and science.
- Memorizing ratios but giving yourself no readable tanks or pipe layers to diagnose the line later.