Southwest Gas Holdings, Inc. (NYSE: SWX) is an investor-owned utility based in Las Vegas, Nevada, United States.

The company provides natural gas service to over 2 million residential, commercial, and industrial customers in parts of Arizona, Nevada, and California.

[3] In 1963, with the completion of a 250-mile pipeline in northern Nevada, the company was able to grow once again by extending its service territory to include Carson City.

Several years later it began serving customers as far west as Elko in the northern part of the state.

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