Southwest Gas Corporation is a natural gas utility serving one of the fastest growing regions of the United States. Southwest purchases, transports, and distributes natural gas to residential, commercial, and industrial customers in three states: Nevada, particularly the Las Vegas and northern Nevada areas; California, including the Lake Tahoe and San Bernardino County areas; and Arizona, in an area encompassing most of southern, central, and northwestern Arizona and including Phoenix and Tucson. Southwest is the largest natural gas utility in both Nevada and Arizona. In all, the company serves more than 1.1 million customers, of which 80 percent are residential customers, 14 percent are industrial customers, and six percent are small and large commercial and resale customers. The region's building boom, spurred by strong population growth in the 1990s, has also proved a boon to Southwest; in 1996 alone the company added 63,000 customers. Since 1990, the influx of new residents to the Las Vegas area alone has added more than 100,000 customers to Southwest. Despite this strong growth, Southwest has been able to maintain a healthy productivity ratio, with a customer-to-employee ratio of 691 to 1, compared with the industry average of 319 to 1.
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