Petroleum Products – crude oil and various refined crude oil products including gasoline, heating oil, diesel fuel, jet fuel, lubricating oils, and asphalt.

Hydrocarbon gas liquids – gas liquids derived from natural gas and crude oil and include alkanes (e.g., propane and butane) and alkenes (e.g., ethylene and propylene).

Natural gas – energy consisting mainly of methane that is found deep beneath the earth’s surface.

Coal – a sedimentary rock that can be burned for fuel. Nuclear energy – An energy source derived from splitting the atoms of uranium and producing a chain reaction of energy.