UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
( ) Check this box if no longer subject to Section 16.
Form 4 or Form 5 obligations may continue. See Instructions 1(b).
1. Name and Address of Reporting Person
   Sheets, Thomas R.
   5241 Spring Mountain Road
   Las Vegas, NV  89150
   USA
2. Issuer Name and Ticker or Trading Symbol
   Southwest Gas Corporation
   SWX
3. IRS or Social Security Number of Reporting Person (Voluntary)

4. Statement for Month/Year
   01/23/2003
5. If Amendment, Date of Original (Month/Year)
   01/22/2003
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
   ( ) Director ( ) 10% Owner (X) Officer (give title below) ( ) Other
   (specify below)
   Senior Vice President/Legal Affairs and General Counsel
7. Individual or Joint/Group Filing (Check Applicable Line)
   (X) Form filed by One Reporting Person
   ( ) Form filed by More than One Reporting Person


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 Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned                                                 |
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1. Title of Security       |2.    |3.    |4.Securities Acquired (A)         |5.Amount of        |6.Dir |7.Nature of Indirect       |
                           | Transaction |  or Disposed of (D)              |  Securities       |ect   |  Beneficial Ownership     |
                           |      |      |                                  |  Beneficially     |(D)or |                           |
                           |      |    | |                  | A/|           |  Owned at         |Indir |                           |
                           | Date |Code|V|    Amount        | D |    Price  |  End of Month     |ect(I)|                           |
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Common Stock               |01/22/|F   |V|1,308             |D  |$23.45     |                   |      |                           |
                           |2003  |    | |                  |   |           |                   |      |                           |
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Common Stock               |01/22/|A   |V|      4,836  (1)  |A  |           |17,087  (1)        |      |                           |
                           |2003  |    | |                  |   |           |                   |      |                           |
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___________________________________________________________________________________________________________________________________
 Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned                                                   |
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1.Title of Derivative |2.Con-  |3.   |4.    |5.Number of De |6.Date Exer|7.Title and Amount  |8.Price|9.Number    |10.|11.Nature of|
  Security            |version |Transaction | rivative Secu |cisable and|  of Underlying     |of Deri|of Deriva   |Dir|Indirect    |
                      |or Exer |     |      | rities Acqui  |Expiration |  Securities        |vative |tive        |ect|Beneficial  |
                      |cise    |     |      | red(A) or Dis |Date(Month/|                    |Secu   |Securities  |(D)|Ownership   |
                      |Price of|     |      | posed of(D)   |Day/Year)  |                    |rity   |Benefi      |or |            |
                      |Deriva- |     |      |               |Date |Expir|                    |       |ficially    |Ind|            |
                      |tive    |     |      |           | A/|Exer-|ation|   Title and Number |       |Owned at    |ire|            |
                      |Secu-   |     |    | |           | D |cisa-|Date |   of Shares        |       |End of      |ct |            |
                      |rity    |Date |Code|V|  Amount   |   |ble  |     |                    |       |Month       |(I)|            |
___________________________________________________________________________________________________________________________________|
                                                                            
                      |        |     |    | |           |   |     |     |            |       |       |            |   |            |
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Explanation of Responses:
(1)  Reported preliminary award in error instead of actual award (from 4,658 to
4,836 and from 16,909 to 17,087).
SIGNATURE OF REPORTING PERSON
/s/ Thomas R. Sheets by Kathy M. Bailey, Attorney in Fact
DATE
 01/24/2003