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Supplemental gas
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. Author: Admin :: Hits: 4 :: Added: Thu Jun 14 2007 ::
