UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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) July 15, 1998 Commission Registrants; State of Incorporation; IRS Employer File Number Address; and Telephone Company Identification No. 1-11327 Illinova Corporation 37-1319890 (an Illinois Corporation) 500 S. 27th Street Decatur, IL 62525 (217) 424-6600 1-3004 Illinois Power Company 37-0344645 (an Illinois Corporation) 500 S. 27th Street Decatur, IL 62525 (217) 424-6600 Total number of sequentially numbered pages is 8. Item 7. Exhibits (c) Exhibits (12) Statements re computation of ratios (99.1) Press Release, dated July 15, 1998 (99.2) Illinova Consolidated Income Statements 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 thereunto duly authorized. ILLINOVA CORPORATION (Registrant) /s/Leah Manning Stetzner --------------------------- Leah Manning Stetzner General Counsel and Corporate Secretary on behalf of Illinova Corporation Date: July 15, 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 thereunto duly authorized. ILLINOIS POWER COMPANY (Registrant) /s/Leah Manning Stetzner --------------------------- Leah Manning Stetzner Vice President, General Counsel, and Corporate Secretary on behalf of Illinois Power Company Date: July 15, 1998 Exhibit Index The following Exhibits are hereby filed as part of this Current Report on Form 8-K: Exhibit Number Description 12 Statements re computation of ratios 99.1 Press Release, dated July 15, 1998 99.2 Illinova Consolidated Income Statements