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 Maffie, Michael O. 5241 Spring Mountain Road Las Vegas, NV 89102 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 3/31/01 5. If Amendment, Date of Original (Month/Year) 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) (X) Director ( ) 10% Owner (X) Officer (give title below) ( ) Other (specify below) President and Chief Executive Officer 7. Individual or Joint/Group Filing (Check Applicable Line) (X) Form filed by One Reporting Person ( ) Form filed by More than One Reporting Person ___________________________________________________________________________________________________________________________________ Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned | ___________________________________________________________________________________________________________________________________| 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)| | ___________________________________________________________________________________________________________________________________| Common Stock |3/2/01|S |V|1,500 |D |$20.92 | | | | -----------------------------------------------------------------------------------------------------------------------------------| Common Stock |3/2/01|S |V|521 |D |$21.10 | | | | -----------------------------------------------------------------------------------------------------------------------------------| Common Stock |3/2/01|S |V|450 |D |$21.05 | | | | -----------------------------------------------------------------------------------------------------------------------------------| Common Stock |3/2/01|S |V|5,508 |D |$21.00 | | | | -----------------------------------------------------------------------------------------------------------------------------------| Common Stock |3/2/01|S |V|3,529 |D |$20.95 | | | | -----------------------------------------------------------------------------------------------------------------------------------| Common Stock |3/2/01|S |V|4,000 |D |$20.90 |62,160 |D | | -----------------------------------------------------------------------------------------------------------------------------------| ___________________________________________________________________________________________________________________________________| ___________________________________________________________________________________________________________________________________ Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned | ___________________________________________________________________________________________________________________________________| 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)| | ___________________________________________________________________________________________________________________________________| | | | | | | | | | | | | | | | ___________________________________________________________________________________________________________________________________| Explanation of Responses: SIGNATURE OF REPORTING PERSON /s/ Michael O. Maffie by Faye J. Ringler, Attorney in fact DATE 3/8/01