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                               UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, DC 20549
                                      
                                 Form 11-K

            FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS
              AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE
                       SECURITIES EXCHANGE ACT OF 1934


(Mark One)
[x]    ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF
       1934 [FEE REQUIRED]

           For the fiscal year ended        December 31, 1994
                                     -------------------------------
                            

                                      OR

[  ]   TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE
       ACT OF 1934 [NO FEE REQUIRED]

           For the transitional period from            to          
                                            ----------    ----------

           Commission file number          1-7850           
                                  -----------------------


A.     Full title of the plan and the address of the plan, if different from
       that of the issuer named below:


                   EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK


B.     Name of issuer of the securities held pursuant to the plan and the
       address of its principal executive office:


                          SOUTHWEST GAS CORPORATION
               5241 Spring Mountain Road, Post Office Box 98510
                         Las Vegas, Nevada 89193-8510


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ITEM 1.  FINANCIAL STATEMENTS AND EXHIBITS

         Listed below are all financial statements and exhibits filed as a
         part of this Annual Report:

         (a)  Financial statements, including Statements of Net Assets
         Available for Benefits as of December 31, 1994 and 1993 and the
         related Statements of Changes in Net Assets Available for Benefits
         for the years then ended, Notes to Financial Statements and
         Schedules I and II, together with the report thereon of Arthur
         Andersen LLP, independent public accountants (pages 3 - 14).

         (b)  Consent of Arthur Andersen LLP, independent public accountants.








                                  SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
members of the Employees' 401(k) Plan of PriMerit Bank Committee have duly
caused this Annual Report to be signed by the undersigned thereunto duly
authorized.





                                      EMPLOYEES' 401(k) PLAN
                                         OF PRIMERIT BANK





Date:      June 23, 1995         By:     /s/ Dan J. Cheever
     -------------------------      ----------------------------
                                    Dan J. Cheever
                                    President and 
                                    Chief Executive Officer
                                    
                                       
                                       
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                      EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK
                      ---------------------------------------
                
                               FINANCIAL STATEMENTS
                               --------------------

                         AS OF DECEMBER 31, 1994 AND 1993
                         --------------------------------

                             AND THE YEARS THEN ENDED
                             ------------------------

                          TOGETHER WITH AUDITORS' REPORT
                          ------------------------------
                          
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
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                     REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Employees' 401(k) Plan of PriMerit Bank Committee:

We have audited the accompanying statements of net assets available for
benefits of the Employees' 401(k) Plan of PriMerit Bank (the Plan) as of
December 31, 1994 and 1993, and the related statements of changes in net
assets available for benefits for the years then ended.  These financial
statements and the schedules referred to below are the responsibility of the
Plan Committee.  Our responsibility is to express an opinion on these
financial statements and schedules based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement.  An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements.  An audit
also includes assessing the accounting principles used and significant
estimates made by the Plan Committee, as well as evaluating the overall
financial statement presentation.  We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the net assets available for benefits of the Plan as of
December 31, 1994 and 1993, and the changes in net assets available for
benefits for the years then ended, in conformity with generally accepted
accounting principles.

Our audits were made for the purpose of forming an opinion on the basic
financial statements taken as a whole.  The supplemental schedules of
investments held at December 31, 1994, and reportable transactions for the
year ended December 31, 1994, are presented for purposes of additional
analysis and are not a required part of the basic financial statements, but
are supplementary information required by the Department of Labor's Rules and
Regulations for Reporting and Disclosure under the Employee Retirement Income
Security Act of 1974.  The fund information in the statements of net assets
available for benefits and the statements of changes in net assets available
for benefits is presented for purposes of additional analysis rather than to
present the net assets available for benefits and the changes in net assets
available for benefits of each fund.  The supplemental schedules and fund
information have been subjected to the auditing procedures applied in our
audits of the basic financial statements and, in our opinion, are fairly
stated in all material respects in relation to the basic financial statements
taken as a whole.



                                       ARTHUR ANDERSEN LLP

Las Vegas, Nevada
June 16, 1995

                                       
                                       
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                                              EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK
                                          STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS,
                                                       WITH FUND INFORMATION
                                                         DECEMBER 31, 1994

ASSETS - ------ Fund Information ---------------------------------------------------------------------- Southwest Large Gas Government Capital- Common Core Corporate ization Stock Guaranteed Balanced Equity Bond Equity Total ---------- ---------- ---------- ---------- ---------- ---------- ---------- Investments, at market value: Southwest Gas Common Stock $ 820,111 $ -- $ -- $ -- $ -- $ -- $ 820,111 Guaranteed Account -- 1,372,563 -- -- -- -- 1,372,563 Balanced Account -- -- 325,109 -- -- -- 325,109 Core Equity Account -- -- -- 432,628 -- -- 432,628 Gov't Corporate Bond Account -- -- -- -- 40,351 -- 40,351 Large Capitalization Equity Account -- -- -- -- -- 139,968 139,968 Dreyfus Treasury Cash Management Fund 36,474 61 10 90 95 96 36,826 ---------- ---------- ---------- ---------- ---------- ---------- ---------- 856,585 1,372,624 325,119 432,718 40,446 140,064 3,167,556 Notes receivable (Note 4) -- 78,251 -- -- -- -- 78,251 Interest receivable 83 49 12 11 3 9 167 ---------- ---------- ---------- ---------- ---------- ---------- ---------- $ 856,668 $1,450,924 $ 325,131 $ 432,729 $ 40,449 $ 140,073 $3,245,974 ========== ========== ========== ========== ========== ========== ========== LIABILITIES AND PLAN EQUITY - --------------------------- Fund Information ---------------------------------------------------------------------- Southwest Large Gas Government Capital- Common Core Corporate ization Stock Guaranteed Balanced Equity Bond Equity Total ---------- ---------- ---------- ---------- ---------- ---------- ---------- Excess contributions payable: Participants (Note 7) $ -- $ 16,236 $ 3,739 $ 5,068 $ 391 $ 1,006 $ 26,440 Accrued Expenses 19,032 -- -- -- -- -- 19,032 Plan equity, at market value (Note 5) 837,636 1,434,688 321,392 427,661 40,058 139,067 3,200,502 ---------- ---------- ---------- ---------- ---------- ---------- ---------- $ 856,668 $1,450,924 $ 325,131 $ 432,729 $ 40,449 $ 140,073 $3,245,974 ========== ========== ========== ========== ========== ========== ========== (See notes to financial statements)
5 EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION DECEMBER 31, 1993
ASSETS - ------ Fund Information ---------------------------------------------- Southwest Gas Common Core Stock Guaranteed Balanced Equity Total ---------- ---------- ---------- ---------- ---------- Investments, at market value: Southwest Gas Corporation Common Stock $ 619,329 $ -- $ -- $ -- $ 619,329 Guaranteed Account -- 1,438,457 -- -- 1,438,457 Balanced Account -- -- 191,610 -- 191,610 Core Equity Account -- -- -- 328,043 328,043 Dreyfus Treasury Cash Management Fund 235 7 6 86 334 ---------- ---------- ---------- ---------- ---------- 619,564 1,438,464 191,616 328,129 2,577,773 Notes receivable (Note 4) -- 42,485 -- 1,500 43,985 Interest receivable 28 23 9 12 72 ---------- ---------- ---------- ---------- ---------- $ 619,592 $1,480,972 $ 191,625 $ 329,641 $2,621,830 ========== ========== ========== ========== ========== LIABILITIES AND PLAN EQUITY - --------------------------- Fund Information ---------------------------------------------- Southwest Gas Common Core Stock Guaranteed Balanced Equity Total ---------- ---------- ---------- ---------- ---------- Excess contributions payable: PriMerit Bank $ 4,013 $ -- $ -- $ -- $ 4,013 Participants (Note 7) 14,838 1,204 15 179 16,236 ---------- ---------- ---------- ---------- ---------- 18,851 1,204 15 179 20,249 Plan equity, at market value (Note 5) 600,741 1,479,768 191,610 329,462 2,601,581 ---------- ---------- ---------- ---------- ---------- $ 619,592 $1,480,972 $ 191,625 $ 329,641 $2,621,830 ========== ========== ========== ========== ========== (See notes to financial statements)
6 EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION FOR THE YEAR ENDED DECEMBER 31, 1994
Fund Information ---------------------------------------------------------------------- Southwest Large Gas Government Capital- Common Core Corporate ization Stock Guaranteed Balanced Equity Bond Equity Total ---------- ---------- ---------- ---------- ---------- ---------- ---------- Investment Income: Dividends $ 37,665 $ -- $ -- $ -- $ -- $ -- $ 37,665 Interest 682 90,880 142 118 30 64 91,916 ---------- ---------- ---------- ---------- ---------- ---------- ---------- 38,347 90,880 142 118 30 64 129,581 ---------- ---------- ---------- ---------- ---------- ---------- ---------- Realized gain (loss) on investments 3,481 -- (245) 33 (20) 58 3,307 Unrealized appreciation (depreciation) of investments (134,163) -- (4,845) 5,515 92 2,532 (130,869) Contributions: PriMerit Bank 468,995 -- -- -- -- -- 468,995 Participants -- 297,496 143,423 120,947 29,007 81,165 672,038 ---------- ---------- ---------- ---------- ---------- ---------- ---------- 468,995 297,496 143,423 120,947 29,007 81,165 1,141,033 ---------- ---------- ---------- ---------- ---------- ---------- ---------- Distributions to participants and beneficiaries (104,996) (290,540) (45,289) (64,588) (347) (3,602) (509,362) Administrative expenses (Note 1) (34,769) -- -- -- -- -- (34,769) Transfer between funds -- (142,916) 36,596 36,174 11,296 58,850 -- ---------- ---------- ---------- ---------- ---------- ---------- ---------- Net increase (decrease) in Plan equity 236,895 (45,080) 129,782 98,199 40,058 139,067 598,921 Plan equity, beginning of year 600,741 1,479,768 191,610 329,462 -- -- 2,601,581 ---------- ---------- ---------- ---------- ---------- ---------- ---------- Plan equity, end of year $ 837,636 $1,434,688 $ 321,392 $ 427,661 $ 40,058 $ 139,067 $3,200,502 ========== ========== ========== ========== ========== ========== ========== (See notes to financial statements)
7 EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION FOR THE YEAR ENDED DECEMBER 31, 1993
Fund Information ---------------------------------------------- Southwest Gas Common Core Stock Guaranteed Balanced Equity Total ---------- ---------- ---------- ---------- ---------- Investment income: Dividends $ 27,641 $ -- $ -- $ -- $ 27,641 Interest 351 98,639 78 127 99,195 ---------- ---------- ---------- ---------- ---------- 27,992 98,639 78 127 126,836 ---------- ---------- ---------- ---------- ---------- Realized gain on investments 26,294 -- 3,703 6,419 36,416 Unrealized appreciation on investments 48,016 -- 17,986 30,437 96,439 Contributions: PriMerit Bank 189,738 -- -- -- 189,738 Participants -- 352,070 66,165 97,247 515,482 ---------- ---------- ---------- ---------- ---------- 189,738 352,070 66,165 97,247 705,220 ---------- ---------- ---------- ---------- ---------- Distributions to participants and beneficiaries (142,073) (350,132) (72,990) (110,048) (675,243) Administrative expenses (Note 1) (21,770) -- -- -- (21,770) Transfer between funds (36) 50,923 (8,417) (42,470) -- ---------- ---------- ---------- ---------- ---------- Net increase (decrease) in Plan equity 128,161 151,500 6,525 (18,288) 267,898 Plan equity, beginning of year 472,580 1,328,268 185,085 347,750 2,333,683 ---------- ---------- ---------- ---------- ---------- Plan equity, end of year $ 600,741 $1,479,768 $ 191,610 $ 329,462 $2,601,581 ========== ========== ========== ========== ==========
(See notes to financial statements) 8 NOTE 1: DESCRIPTION OF PLAN - ---------------------------- The following description of the Employees' 401(k) Plan (the Plan) of PriMerit Bank (the Bank) provides summary information regarding the Plan. General - ------- Effective January 1, 1988 the Bank offered to all its eligible employees participation in a voluntary defined contribution plan. All employees who were employed by the Bank on January 1, 1988 and who were at least age 21 on that date became participants on January 1, 1988. An employee hired after that date or reaching age 21 after that date is eligible to participate in the Plan on the applicable entry date on or following the date on which the employee reaches age 21 and has completed one year of service. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA). Contributions - ------------- Participants may contribute from one percent to fifteen percent of their annual wages, including bonuses, overtime pay and commissions. During 1994, the Bank's contribution was 100 percent of participants contributions not exceeding 6 percent of a participant's annual wages. During 1993 and 1992, the Bank contributed 50 percent and 25 percent, respectively, of a participant's contributions not exceeding 3 percent and 1.5 percent, respectively, of a participant's annual wages. All of the Bank's contributions are invested in Southwest Gas Corporation (Southwest) common stock. The Bank is a wholly owned subsidiary of Southwest. Vesting - ------- Participants are immediately 100 percent vested in their voluntary contributions plus actual earnings thereon. Vesting in the contributions made by the Bank and in any earnings thereon is determined based on years of service with the Bank as follows: Years of Service Vested Percentage ---------------- ----------------- 1 0% 2 20% 3 40% 4 60% 5 80% 6 or more 100% A participant will receive a year of service if the participant has worked at least 1000 hours in a Plan year. 9 Withdrawals from the Plan - ------------------------- The Plan permits distributions from participants' accounts when any of the following events occur: (1) participant reaches normal or deferred retirement age; (2) participant becomes permanently disabled while employed by the Bank; (3) participant dies while employed by the Bank; (4) participant terminates employment with the Bank; (5) participant qualifies under a hardship withdrawal or a loan to withdraw amounts from the Plan and (6) the Bank terminates the Plan. All distributions from the Plan, except hardship withdrawals and loans, less than $3,500 will be paid in a single lump sum, while distributions greater than $3,500 from the Plan are made in the form of an annuity contract. A participant, or their beneficiary, may elect to waive the annuity form of distribution in favor of a single lump sum. Distributions, other than hardship withdrawals and loans, will be paid shortly after the end of the Plan year (or sooner, if administratively convenient) in the form selected by the participant or beneficiary. Plan Expenses - ------------- Plan expenses were paid by the Plan via participants' forfeitures with the Bank paying any excess. Plan Administration - ------------------- Bank of America acts as the trustee and the Bank is the administrator for all activities of the Plan. Reclassification - ---------------- Certain reclassifications have been made to conform the prior year's with the current year presentation. NOTE 2: VALUATION OF INVESTMENTS AND INCOME RECOGNITION - -------------------------------------------------------- All investments of the Plan are stated at quoted market value. The units of participation in the Guaranteed, Balanced, Core Equity, Government/Corporate Bond, and Large Capitalization Equity accounts are valued based upon original cost plus accumulated net interest income and changes in value of the underlying investments. Purchases and sales of securities are recorded on a trade date basis. Dividends are recorded on the ex-dividend date. Interest is recorded on the accrual basis. NOTE 3: ACCOUNT DESCRIPTIONS - ----------------------------- A description of the Plan accounts is as follows: SOUTHWEST COMMON STOCK ACCOUNT - The Bank's contributions are invested in common stock of its parent. At December 31, 1994, the Plan holds 60,630 shares of Southwest common stock. 10 GUARANTEED ACCOUNT - The account invests primarily in high-quality bonds and mortgages. The assets of the account are backed by the general assets of The Lincoln National Life Insurance Company (Lincoln Life) and are invested the same way as Lincoln Life's general investment account. The account guarantees principal, a minimum rate of return and a current interest crediting rate. At December 31, 1994, the Plan holds 1,372,563 units of the Guaranteed Account. BALANCED ACCOUNT - The account invests in a combination of stocks, bonds and money market instruments. At December 31, 1994, the Plan holds 101,687 units of the Balanced Account. CORE EQUITY ACCOUNT - The account invests primarily in large capitalization stocks of well-established companies and broadly diversifies them to control risk. At December 31, 1994, the Plan holds 86,264 units of the Core Equity Account. GOVERNMENT/CORPORATE BOND ACCOUNT - The account invests primarily in government mortgage backed and corporate bonds structured to minimize interest rate risk and maximize return potential. At December 31, 1994, the Plan holds 10,069 units of the Government/Corporate Bond Account. LARGE CAPITALIZATION EQUITY ACCOUNT - The account invests primarily in large capitalization stocks that have potential to grow 50% within 18 months from the date of purchase. At December 31, 1994, the Plan holds 37,293 units of the Large Capitalization Equity Account. Lincoln National Investment Management Company (LNIMC) serves as the primary investment advisor for the Guaranteed, Balanced, Core Equity, Government/Corporate Bond, and Large Capitalization Equity Accounts. The Guaranteed, Balanced and Government/Corporate Bond Accounts are also managed by LNIMC. The Core Equity Account is managed by Vantage Global Advisors. The Large Capitalization Equity Account is managed by Lynch & Mayer. NOTE 4: NOTES RECEIVABLE - ------------------------- The Plan provides that participants may borrow against the balances in their accounts, subject to certain limitations specified in the Plan. Funds for loans are obtained through liquidation of participants' investment accounts. Payments on the loans include interest at a rate at or above the prime interest rate. NOTE 5: PLAN - ------------ Plan equity at December 31, 1994 and 1993 includes withdrawing participants' accounts with aggregate market value of $123,147 and $273,934, respectively. These amounts became payable subsequent to year end. Amounts allocated to withdrawing participants are recorded on the Form 5500 as a liability. 11 NOTE 6: PLAN TERMINATION - ------------------------- Although the Bank expects to continue the Plan indefinitely, it reserves the right to amend or terminate the Plan at any time. Upon termination or complete discontinuance of contributions to the Plan, the participants will become 100 percent vested in all Bank contributions already allocated to participants' accounts. NOTE 7: FEDERAL INCOME TAXES - ----------------------------- The Bank has received a favorable determination letter from the Internal Revenue Service stating that the Plan, effective March 19, 1992, is exempt from taxation under the applicable provisions of the Internal Revenue Code. The Internal Revenue Code requires that the Plan, on an annual basis, meet certain average deferral percentage tests in order to maintain its qualified plan status. At December 31, 1994 and 1993, the Plan did not comply with the average deferral percentage tests. In order to retain its qualified plan status, the Plan returned deferrals of $26,440 and $1,398 to participants for the years ended December 31, 1994 and 1993, respectively, and returned $14,838 of the Bank's contributions to participants for the year ended December 31, 1993. In addition, $4,013 of the Bank's contributions were returned to the Bank for the year ended December 31, 1993. No Bank contributions were returned for the year ended December 31, 1994. 12 SCHEDULE I EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK ITEM 27a - SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES DECEMBER 31, 1994 Shares/Units Cost Value ------------ ----------- ----------- Guaranteed Account 1,372,563 $ 1,372,563 $ 1,372,563 Government/Corporate Bond 10,069 $ 39,546 $ 40,351 Balanced Account 101,687 $ 327,540 $ 325,109 Core Equity Account 86,264 $ 427,011 $ 432,628 Large Capitalization Equity Account 37,293 $ 137,504 $ 139,968 Southwest Gas Corporation Common Stock* 60,630 $ 954,274 $ 820,111 Dreyfus Treasury Cash Management Fund 36,826 $ 36,826 $ 36,826 Notes receivable from participants 78,251 $ 78,251 $ 78,251 * party-in-interest 13 SCHEDULE II EMPLOYEES' 401(k) PLAN OF PRIMERIT BANK ITEM 27d - SCHEDULE OF REPORTABLE TRANSACTIONS FOR THE YEAR ENDED DECEMBER 31, 1994
Purchases Sales ---------------------------- ------------------------------------------------------------ Number of Number of Original Gain Description Transactions Cost Transactions Proceeds Cost (Loss) - -------------------- ------------ ---------- ------------ ---------- ---------- ---------- Southwest Gas Common Stock Account 17 $ 403,981 -- -- -- -- Guaranteed Account 10 $ 216,150 6 $ 373,250 $ 373,250 $ -- Balanced Account 12 $ 196,350 -- -- -- -- Core Equity Account 11 $ 142,690 -- -- -- -- Large Capitalization Equity Account 9 $ 137,650 -- -- -- -- Dreyfus Treasury Cash Management Fund 179 $2,035,407 125 $1,998,899 $1,998,899 --
14
As independent public accountants, we hereby consent to the incorporation by 
reference of our report included in this Form 11-K, into Southwest Gas
Corporation's previously filed Registration Statement File No. 33-35737.



                                                   ARTHUR ANDERSEN LLP


Las Vegas, Nevada
June 23, 1995