Solaris Oilfield Infrastructure, Inc. provides mobile equipment that drives supply chain and execution in the completion of oil and natural gas wells. The Company designs and manufactures specialized equipment, which combined with field technician support, last mile logistics services and software solutions, which enables it to provide a service offering that helps oil and natural gas operators and their suppliers during the completion phase of well development. It services active oil and natural gas basins in the United States. It specializes in developing all electric equipment that automates the low-pressure section of oil and gas well completion sites. The Company’s sand handling service span from mobile proppant management systems to multiple types of all-electric, automated systems designed to store, move, and blend sand and fluids on the low-pressure side of well completion sites. It measures its activity based on the number of its fully utilized systems.