Heat, gas and oil Coal, heat and oil Coal, oil and natural gas Coal, oil and limestone
Renewable and finite Non-renewable and finite Renewable and infinite Gone already
Hydrogen Methane Propane Oxygen
Petrol Gasoline Planeline Kerosine
Coal Sea creatures Alcohols Hydrocarbons
Get more oil Make more useful compounds Make oil thinner Make oil quieter when used as a fuel for cars
Neutralisation Combustion Electrolysis Thermal decomposition