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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    Form 8-K
                                 CURRENT REPORT


     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported) November 1, 2000


                            SOUTHWEST GAS CORPORATION
             (Exact name of registrant as specified in its charter)


               California                      1-7850            88-0085720
     (State or other jurisdiction of         (Commission      (I.R.S. Employer
     incorporation or organization)          File Number)    Identification No.)

       5241 Spring Mountain Road
         Post Office Box 98510
           Las Vegas, Nevada                                     89193-8510
(Address of principal executive offices)                         (Zip Code)


       Registrant's telephone number, including area code: (702) 876-7237





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Item 9. Regulation FD Disclosure On November 1, 2000, Southwest Gas Corporation (the Company) released summary financial information to the general public, including the investment community, regarding the Company's operating performance and financial position for the quarter ended September 30, 2000. The financial information released is included herein. The following information is summary in nature and should not be considered complete financial statements.

SOUTHWEST GAS CORPORATION SUMMARY STATEMENTS OF INCOME (In thousands, except per share amounts) (Unaudited) THREE MONTHS ENDED NINE MONTHS ENDED TWELVE MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, SEPTEMBER 30, ------------------------ ----------------------- ------------------------ 2000 1999 2000 1999 2000 1999 ----------- ----------- ----------- ----------- ----------- ----------- Gas operating revenues $ 150,178 $125,190 $ 575,142 $570,979 $ 795,318 $802,967 Net cost of gas sold 70,142 46,711 263,836 254,436 339,431 338,031 ----------- ----------- ----------- ----------- ----------- ----------- Operating margin 80,036 78,479 311,306 316,543 455,887 464,936 Operations and maintenance expenses 56,839 54,621 170,506 163,565 228,199 218,941 Depreciation, amortization, and general taxes 31,111 28,992 93,059 87,066 121,857 115,888 ----------- ----------- ----------- ----------- ----------- ----------- Operating income (loss) (7,914) (5,134) 47,741 65,912 105,831 130,107 Net interest deductions 17,165 15,657 50,050 44,720 66,927 60,198 Preferred securities distribution 1,368 1,368 4,106 4,106 5,475 5,475 ----------- ----------- ----------- ----------- ----------- ----------- Pretax utility income (loss) (26,447) (22,159) (6,415) 17,086 33,429 64,434 Utility income tax (10,334) (8,815) (4,300) 6,374 9,724 27,096 ----------- ----------- ----------- ----------- ----------- ----------- Net utility income (loss) (16,113) (13,344) (2,115) 10,712 23,705 37,338 Other income (expense), net 4,495 (1,960) 3,912 (3,327) 6,180 (5,760) ----------- ----------- ----------- ----------- ----------- ----------- Contribution to net income (loss) - gas operations (11,618) (15,304) 1,797 7,385 29,885 31,578 Contribution to net income - construction services 1,938 1,116 3,992 3,097 4,732 3,947 ----------- ----------- ----------- ----------- ----------- ----------- Net income (loss) $ (9,680) $ (14,188) $ 5,789 $ 10,482 $ 34,617 $ 35,525 =========== =========== =========== =========== =========== =========== Earnings (loss) per share - gas operations $ (0.37) $ (0.50) $ 0.06 $ 0.24 $ 0.96 $ 1.03 Earnings per share - construction services 0.06 0.04 0.13 0.10 0.15 0.13 ----------- ----------- ----------- ----------- ----------- ----------- Basic earnings (loss) per share $ (0.31) $ (0.46) $ 0.19 $ 0.34 $ 1.11 $ 1.16 =========== =========== =========== =========== =========== =========== Diluted earnings (loss) per share $ (0.31) $ (0.46) $ 0.18 $ 0.34 $ 1.10 $ 1.15 =========== =========== =========== =========== =========== =========== Average outstanding common shares 31,424 30,742 31,285 30,621 31,272 30,550 Average shares outstanding (assuming dilution) -- -- 31,465 30,902 31,471 30,824 The summary statements of income have been prepared by Southwest Gas Corporation (the Company) using the equity method of accounting for its construction services subsidiary. This presentation is not in accordance with generally accepted accounting principles (GAAP). However, it produces the same net income as the consolidated financial statements and, in management's opinion, is a fair representation of the operations and contributions to net income of the Company's operating segments.

SOUTHWEST GAS CORPORATION SUMMARY STATEMENTS OF INCOME (In thousands, except per share amounts) (Unaudited) NINE MONTHS ENDED TWELVE MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, ------------------------------ ------------------------------ 2000 1999 2000 1999 - -------------------------------------------------------------------------------------------------------------------------- Gas operating revenues $ 575,142 $ 570,979 $ 795,318 $ 802,967 Net cost of gas sold 263,836 254,436 339,431 338,031 - -------------------------------------------------------------------------------------------------------------------------- Operating margin 311,306 316,543 455,887 464,936 Operations and maintenance expenses 170,506 163,565 228,199 218,941 Depreciation, amortization, and general taxes 93,059 87,066 121,857 115,888 - -------------------------------------------------------------------------------------------------------------------------- Operating income 47,741 65,912 105,831 130,107 Net interest deductions 50,050 44,720 66,927 60,198 Preferred securities distribution 4,106 4,106 5,475 5,475 - -------------------------------------------------------------------------------------------------------------------------- Pretax utility income (loss) (6,415) 17,086 33,429 64,434 Utility income tax expense (benefit) (4,300) 6,374 9,724 27,096 - -------------------------------------------------------------------------------------------------------------------------- Net utility income (loss) (2,115) 10,712 23,705 37,338 Other income (expense), net 3,912 (3,327) 6,180 (5,760) - -------------------------------------------------------------------------------------------------------------------------- Contribution to net income - gas operations 1,797 7,385 29,885 31,578 Contribution to net income - construction services 3,992 3,097 4,732 3,947 - -------------------------------------------------------------------------------------------------------------------------- Net income $ 5,789 $ 10,482 $ 34,617 $ 35,525 ========================================================================================================================== Earnings per share - gas operations $ 0.06 $ 0.24 $ 0.96 $ 1.03 Earnings per share - construction services 0.13 0.10 0.15 0.13 - -------------------------------------------------------------------------------------------------------------------------- Basic earnings per share $ 0.19 $ 0.34 $ 1.11 $ 1.16 ========================================================================================================================== Diluted earnings per share $ 0.18 $ 0.34 $ 1.10 $ 1.15 ========================================================================================================================== Average outstanding common shares 31,285 30,621 31,272 30,550 Average shares outstanding (assuming dilution) 31,465 30,902 31,471 30,824 See Notes to Summary Financial Statements.

SOUTHWEST GAS CORPORATION SUMMARY BALANCE SHEET AT SEPTEMBER 30, 2000 (In thousands) (Unaudited) ASSETS UTILITY PLANT Gas plant, net of accumulated depreciation $ 1,609,695 Construction work in progress 47,196 -------------- Net utility plant 1,656,891 -------------- OTHER PROPERTY AND INVESTMENTS Investment in construction services subsidiary 32,950 Other 45,903 -------------- Total other property and investments 78,853 -------------- CURRENT AND ACCRUED ASSETS Cash, working funds and temporary cash investments 10,250 Receivables - less reserve of $1,588 for uncollectibles 43,816 Accrued utility revenue 24,373 Deferred purchased gas costs 17,677 Other 29,055 -------------- Total current and accrued assets 125,171 -------------- DEFERRED DEBITS Unamortized debt expense 18,715 Other deferred debits 24,245 -------------- Total deferred debits 42,960 -------------- TOTAL ASSETS $ 1,903,875 ============== CAPITALIZATION AND LIABILITIES CAPITALIZATION Common stockholders' equity Common stock equity, $1 par, 31,530 shares outstanding $ 482,893 Retained earnings 19,992 -------------- Total common stockholders' equity 502,885 35.6 % Preferred securities of Southwest Gas Capital I, 9.125% 60,000 4.2 Long-term debt - NOTE 2 851,161 60.2 -------------- ---------- Total capitalization 1,414,046 100.0 % -------------- ========== CURRENT AND ACCRUED LIABILITIES Notes payable 89,000 Accounts payable 49,571 Customer deposits 28,427 Taxes accrued (including income taxes) 27,527 Other 59,460 -------------- Total current and accrued liabilities 253,985 -------------- DEFERRED CREDITS Deferred investment tax credits 15,753 Deferred income taxes 166,810 Other 53,281 -------------- Total deferred credits 235,844 -------------- TOTAL CAPITALIZATION AND LIABILITIES $ 1,903,875 ============== See Notes to Summary Financial Statements.

SOUTHWEST GAS CORPORATION SUMMARY STATEMENT OF CASH FLOWS NINE MONTHS ENDED SEPTEMBER 30, 2000 (In thousands) (Unaudited) CASH FLOWS FROM OPERATIONS: Net income $ 5,789 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 70,371 Change in receivables and payables 48,886 Change in gas cost related balancing items (8,626) Change in accrued taxes (13,442) Change in deferred taxes 10,398 Allowance for funds used during construction (1,152) Other 4,842 ------------- Net cash provided by operating activities 117,066 ------------- CASH FLOWS FROM INVESTING ACTIVITIES: Construction expenditures (145,323) Other 1,045 ------------- Net cash used in investing activities (144,278) ------------- CASH FLOWS FROM FINANCING ACTIVITIES: Net proceeds from stock issuances 11,016 Dividends paid (19,234) Change in notes payable 28,000 Long-term debt issuances, net 5,415 ------------- Net cash provided by financing activities 25,197 ------------- Change in cash and temporary cash investments (2,015) Cash at beginning of period 12,265 ------------- Cash at end of period $ 10,250 ============= SUPPLEMENTAL INFORMATION: Interest paid, net of amounts capitalized $ 48,287 Income taxes, net of refunds $ 52 See Notes to Summary Financial Statements.

SOUTHWEST GAS CORPORATION NOTES TO SUMMARY FINANCIAL STATEMENTS (In thousands) (Unaudited) NOTE 1 - BASIS OF PRESENTATION: The summary financial statements have been prepared by Southwest Gas Corporation (the Company) using the equity method of accounting for its construction services subsidiary. This presentation is not in accordance with generally accepted accounting principles (GAAP), and certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been omitted. The summary financial statement presentation in this report produces the same net income as the consolidated financial statements and, in management's opinion, is a fair representation of the operations and contributions to net income of the Company's operating segments. NOTE 2 - LONG-TERM DEBT: Revolving credit facility, variable rate $ 200,000 Debentures and notes: Debentures, 9.75% series F, due 2002 100,000 Debentures, 7.50% series, due 2006 75,000 Debentures, 8% series, due 2026 75,000 Medium-term notes, 7.59% series, due 2017 25,000 Medium-term notes, 7.78% series, due 2022 25,000 Medium-term notes, 7.92% series, due 2027 25,000 Medium-term notes, 6.89% series, due 2007 17,500 Medium-term notes, 6.76% series, due 2027 7,500 Medium-term notes, 6.27% series, due 2008 25,000 Industrial development revenue bonds: Variable-rate bonds, Series A, due 2028 - net of funds held in trust 42,418 7.30% 1992 Series A, due 2027 30,000 7.50% 1992 Series B, due 2032 100,000 6.50% 1993 Series A, due 2033 75,000 6.10% 1999 Series A, due 2038 12,410 Variable-rate bonds, 1999 Taxable Series B, due 2038 8,270 5.95% 1999 Series C, due 2038 14,320 Unamortized discount on long-term debt (6,257) ------------- TOTAL LONG-TERM DEBT $ 851,161 ============= ESTIMATED CURRENT MATURITIES $ -- =============

SOUTHWEST GAS CORPORATION SELECTED STATISTICAL DATA SEPTEMBER 30, 2000 FINANCIAL STATISTICS Market value to book value per share at quarter end 131% Twelve months to date return on equity -- total company 6.8% -- gas segment 6.2% Common stock dividend yield at quarter end 3.9% GAS OPERATIONS SEGMENT Authorized Authorized Authorized Return on Rate Base Rate of Common Rate Jurisdiction (In thousands) Return Equity - -------------------------------- -------------- ------------- -------------- Arizona (1) $ 541,104 9.38 % 11.25 % Southern Nevada (1) 237,165 9.50 11.55 Northern Nevada (1) 63,986 9.67 11.55 Southern California 69,486 9.94 11.35 Northern California 24,344 10.02 11.35 Paiute Pipeline Company (1) 72,054 9.69 11.60 (1) Estimated amounts based on rate case settlements. SYSTEM THROUGHPUT BY CUSTOMER CLASS NINE MONTHS ENDED TWELVE MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, ----------------------------- ----------------------------- (In dekatherms) 2000 1999 2000 1999 - -------------------------------------------------------------------------------------------------------------------------------- Residential 40,183,742 42,517,543 53,116,949 56,318,193 Small commercial 19,555,221 19,988,237 26,170,012 26,649,200 Large commercial 4,885,694 4,995,617 6,146,638 6,811,334 Industrial / Other 14,026,128 11,637,753 17,818,938 15,136,892 Transportation 108,392,712 88,181,939 138,896,720 115,135,917 - -------------------------------------------------------------------------------------------------------------------------------- Total system throughput 187,043,497 167,321,089 242,149,257 220,051,536 ================================================================================================================================ HEATING DEGREE DAY COMPARISON - -------------------------------------------------------------------------------------------------------------------------------- Actual 1,235 1,463 1,691 2,031 Ten-year average 1,408 1,442 1,988 2,029 ================================================================================================================================

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. SOUTHWEST GAS CORPORATION Date: November 1, 2000 /s/ EDWARD A. JANOV ----------------------------- Edward A. Janov Vice President/Controller and Chief Accounting Officer