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NEW YORK ( TheStreet) -- Southwest Gas Corporation (NYSE: SWX) hit a new 52-week high Friday as it is currently trading at $43.24, above its previous 52-week high of $43.22 with 25,546 shares traded as of 10:38 a.m. ET. Average volume has been 238,900 shares over the past 30 days. Southwest Gas has a market cap of $1.9 billion and is part of the utilities sector and utilities industry. Shares are up 0.8% year to date as of the close of trading on Thursday. Southwest Gas Corporation engages in the purchase, distribution, and transportation of natural gas in Arizona, Nevada, and California. The company has a P/E ratio of 17.6, below the average utilities industry P/E ratio of 18.8 and below the S&P 500 P/E ratio of 17.7.