Supplemental gas

What is Supplemental gas?

Supplemental gas meaning Any gaseous substance introduced into or commingled with natural gas that increased the volume available for disposition. Such substances include, but are not limited to, propane-air, refinery gas, coke-oven gas, still gas, manufactured gas, biomass gas, or air or inerts added for Btu stabilization.


reference: Glossary – U.S. Energy Information Administration (EIA)

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