EXHIBIT 11.1 MILLER EXPLORATION COMPANY COMPUTATION OF EARNINGS PER COMMON SHARE THREE MONTHS ENDED MARCH 31, 1998 --------------------------- (In thousands, except per share data) BASIC EARNINGS (LOSS) PER SHARE Net Loss $ (5,581) Shares Weighted average shares outstanding 7,079 ----------------- Basic earnings per share $ (0.79) ================= DILUTED EARNINGS (LOSS) PER SHARE Net Loss $ (5,581) Shares Weighted average shares outstanding 7,186 ----------------- Diluted earnings per share $ (0.78) =================