- ------------------------------------------------------------------------------ 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) April 15, 1998 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 - ------------------------------------------------------------------------------ ITEM 5. OTHER EVENTS On April 15, 1998 Southwest Gas Corporation announced that earnings per share for the first quarter of 1998 are expected to exceed the consensus street estimate by more than one-third. The Company attributes the significantly higher earnings to colder than expected weather for the latter part of February and March in the southwest, timely rate relief, and the positive impacts of customer expansion during the 90s. The Company expects to release its earnings for the first quarter on April 29, 1998. 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: April 15, 1998 /s/ EDWARD A. JANOV ----------------------------- Edward A. Janov Vice President/Controller and Chief Accounting Officer