Solaris Oilfield Infrastructure, Inc. designs and manufactures specialized equipment for oil and natural gas operators in the United States. The company provides mobile proppant and fluid management systems, as well as last mile logistics management services. It offers systems, mobilization, and last mile logistics services that are used to unload, store, and deliver proppant, water and/or chemicals at oil and natural gas well sites. The company is also involved in the transloading and storage of proppant or railcars at its transloading facility. In addition, it develops Railtronix, an inventory management software; and all-electric equipment that automates the low pressure section of oil and gas well completion sites. The company serves exploration and production, and oilfield services industries. Solaris Oilfield Infrastructure, Inc. was founded in 2014 and is headquartered in Houston, Texas.