| maturity | Ro (%) | 0.5 | 1.3 | ||
| immature | Oil zone | Gas zone | |||
| Tmax (˚C) | 430 | 465 | |||
| immature | Oil zone | Gas zone | |||
| Kerogen Type | HI mg HC/g TOC | 200 | 300 | ||
| III (gas-prone) | II/III (oil/gas) | II (oil-prone) | |||
| Organic richness | TOC (%) | 0.5 | 1 | ||
| Poor | Fair | Good | |||
| 1 | 3 | ||||
| Poor | Fair | Good | |||