| Rating | Solver | Clue |
|---|---|---|
| COKE | Fuel | |
| DIESEL | Fuel | |
| COAL | Fuel | |
| GAS | Fuel | |
| FEWEL | Fuel. | |
| ELDING | Fuel. | |
| PETROL | Fossil fuel | |
| OILCAN | Fuel container | |
| KEROSENE | Aircraft fuel | |
| HYDROCARBON | Fossil fuel | |
| NATURALGAS | Hydrocarbon fuel | |
| CHARCOAL | Solid fuel | |
| BUTANE | Lighter fuel | |
| STERNO | Camp-stove fuel | |
| JERRYCAN | Fuel container | |
| LEADFREE | Fuel type | |
| ETHANOL | Fuel additive | |
| PARAFFIN | Liquid fuel | |
| OIL | Fossil fuel | |
| LPG | Liquid fuel | |
| COALGAS | Heating fuel | |
| PETROLEUM | Fossil fuel | |
| PEAT | Fossil fuel | |
| URANIUM | Nuclear fuel | |
| KERO | Local fuel | |