Mammoth Energy Services, Inc. is an integrated energy services company focused on providing products and services to enable the exploration and development of North American onshore unconventional oil and natural gas reserve. It is also engaged in the construction and repair of the electric grid for private utilities, public investor-owned utilities and co-operative utilities through its infrastructure services businesses. It operates through four segments. The Natural Sand Proppant services segment mines, processes and sells sand for use in hydraulic fracturing. The Well Completion services segment provides hydraulic fracturing, sand hauling and water transfer services. The Infrastructure services segment provides electric utility infrastructure services in the northeastern, southwestern, midwestern and western portions of the United States. The Drilling services segment provides rental equipment, such as mud motors and operational tools, for both vertical and horizontal drilling.