From the compressor stations the gas flows with new impetus and force to the city gate measuring stations, where large meters measure it and gas regulators reduce the high pressure for local distribution, Kodak

“To supplement the capacity of transmission pipe lines at times of heaviest demand for gas, Columbia System maintains two large gas plants in Cincinnati where artificial gas is manufactured and mixed with the natural gas”

Educational film about gas plants

Likely related to film 9089, unsure if its a direct part 2 or produced by the same people