That state of matter which has neither independent shape nor volume.
Gas expands to fill the entire container in which it is held.
Associated Free natural gas in immediate contact, but not in solution, with crude oil in the reservoir. Also called gas cap gas. Sometimes called Braden- head gas, oil well gas, wet gas, or solution gas. Coal Manufactured gas made by distillation or carbonization of coal in a closed coal gas retort, coke oven, or other vessel. Coal Bed Gas found in or released from coal deposits.