CSI Compressco LP, formerly Compressco Partners, L.P., is a provider of compression services and equipment for natural gas and oil production, gathering, transportation, processing and storage. The Company fabricates and sells custom-designed compressor packages and oilfield fluid pump systems, and provides aftermarket services and compressor package parts and components manufactured by third-party suppliers. It provides these compression services and equipment to a base of natural gas and oil exploration and production, midstream and transmission companies. It is a service provider of natural gas compression services, utilizing its fleet of compressor packages that employs a spectrum of low-, medium- and high-horsepower engines. Its applications include gas gathering, gas lift, carbon dioxide injection, wellhead compression, gas storage, refrigeration plant compression, gas processing, pressure maintenance, pipeline transmission, vapor recovery and gas transmission, among others.