EXHIBIT 99.2 Wednesday, April 30, 2003 Oglebay Norton Company North Point Tower 1001 Lakeside Avenue, 15th Floor Cleveland, Ohio 44114 Dear Secretary, I hereby tender my resignation as a member of the Board of Directors of Oglebay Norton Company, to be effective Wednesday, April 30, 2003. Sincerely, /s/ John N. Lauer - ----------------- John N. Lauer