Press Releases

LAS VEGAS, Aug. 2 /PRNewswire-FirstCall/ -- Senior management of Southwest Gas Corporation (NYSE: SWX) is holding a conference call to discuss Southwest's 2007 second quarter and twelve-month results on Wednesday, August 8, 2007.

The conference call will follow the release of Southwest's earnings results on Monday, August 6, 2007.

The call will also be webcast live on Southwest's website at http://www.swgas.com.

DATE: WEDNESDAY, AUGUST 8, 2007
TIME: 1:00 P.M. (ET)
Telephone number: 866-277-1184
International
telephone number: 617-597-5360
Pass code: 66272370

A digital replay of the call can be accessed beginning at 3:00 p.m. (ET) on August 8, 2007 by dialing 888-286-8010 or 617-801-6888 for international calls; passcode: 81916993. The replay and webcast will be available through the close of business on Friday, August 31, 2007.

(Southwest Gas recommends the free download of Windows Media(R) Player 10 Series found at http://www.microsoft.com/windows/windowsmedia/default.aspx and at least a 56 kbps connection to the Internet. If you have "pop-up" blocking software installed, please press the CTRL key when you click the Register button. Please contact your network operations group if you are unable to override this feature.)

SOURCE Southwest Gas Corporation
08/02/2007
CONTACT: shareholders, Ken Kenny, Las Vegas, NV, +1-702-876-7237/
Web site: http://www.swgas.com
(SWX)