UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 5 ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP ( ) Check box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instructions 1(b). ( ) Form 3 Holdings Reported ( ) Form 4 Transactions Reported 1. Name and Address of Reporting Person Hartley, Thomas Y. 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 12/31/2001 5. If Amendment, Date of Original (Month/Year) 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) (X) Director ( ) 10% Owner ( ) Officer (give title below) ( ) Other (specify below) 7. Individual or Joint/Group Reporting (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 | |Date |Code| | Beneficially |(D)or | | | | | | A/| | Owned at |Indir | | | | | Amount | D | Price | End of Year |ect(I)| | ___________________________________________________________________________________________________________________________________| Common Stock | | | | | |18,617 (2) |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 |Date |Code| rities Acqui |Expiration | Securities |vative |tive |ect|Beneficial | |cise Pr | | | red(A) or Dis |Date(Month/| |Secu |Securities |(D)|Ownership | |ice 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 | | | Amount | |ble | | | |Year |(I)| | ___________________________________________________________________________________________________________________________________| Stock Option |$21.15 |05/10|A |2,000 |A |(1) |05/09|Common Stock|2,000 | |2,000 |D | | | |/2001| | | | |/2011| | | | | | | -----------------------------------------------------------------------------------------------------------------------------------| (right to buy) | | | | | | | | | | | | | | -----------------------------------------------------------------------------------------------------------------------------------| ___________________________________________________________________________________________________________________________________| Explanation of Responses: (1) The option vests in three annual installments of 800 shares in 2002, 600 shares in 2003, and 600 shares in 2004, beginning on May 10, 2002. (2) Includes 694 shares acquired in 2001 pursuant to dividend reinvestment plan. SIGNATURE OF REPORTING PERSON /s/Thomas Y. Hartley by Faye J. Ringler, Attorney in fact DATE 01/31/2002