CSI Compressco LP is a provider of compression services and equipment for natural gas and oil production, gathering, transportation, processing and storage. The Company 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 operating throughout many of the onshore producing regions of the United States, as well as in a number of foreign countries, including Mexico, Canada and Argentina. It is a service provider of natural gas compression services in the United States, utilizing its fleet of compressor packages that employs a spectrum of low-, medium- and high-horsepower engines. As of December 31, 2016, its fleet included approximately 6,000 compressor packages.