Original oil and gas trade magazine vintage ad for SOUTHWEST INDUSTRIES, INC in Houston, TX. Packaged Compressor Plants save on operating costs. Unattended operation in the field is possible with the automatic controls and safety devices. Featuring dependable Cooper-Bessemer engine driven compressors up to 660 horsepower each. This unique 1955 old petroleum oilfield gas compressor equipment magazine advertisement would display beautifully matted and framed.