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) December 17, 1998 FirstEnergy Corp. (Exact name of Registrant as specified in its charter) Ohio 333-21011 34-1843785 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation) File Number) Identification No.) 76 South Main Street, Akron, Ohio 44308 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: 330-384-5100 Item 5. Other Events On December 17, 1998, FirstEnergy Corp. reported that fourth quarter earnings would be adversely affected by lower heating load sales brought on by unusually mild weather in the Midwest, as described more fully in the press release filed as an exhibit to this Current Report on Form 8-K and incorporated herein by reference. Item 7. Financial Statements and Exhibits (99) Press Release dated December 17, 1998 of FirstEnergy Corp. 1 SIGNATURE 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. December 17, 1998 FIRSTENERGY CORP. ----------------- Registrant /s/ Harvey L. Wagner ------------------------------ Harvey L. Wagner Controller 2