Southwest Gas Corp. engages in the provision of natural gas services. It operates through the Natural Gas Operation and Construction Services segments. The Natural Gas Operation segment deals with the business of purchasing, distributing, and transporting natural gas for customers in portions of Arizona, Nevada, and California. The Construction Services segment through the Centuri Construction Group, Inc., is full-service underground piping contractor that provides utility companies with trenching and installation, replacement, and maintenance services for energy distribution systems, and industrial construction solutions. The company was founded by Harold G. Laub in March 1931 and is headquartered in Las Vegas, NV.