EXHIBIT 11.1 MILLER EXPLORATION COMPANY COMPUTATION OF EARNINGS PER COMMON SHARE Year Ended December 31, 1999 1998 ------------------------------------- (In thousands, except per share data) BASIC EARNINGS (LOSS) PER SHARE Net loss $ (1,982) $ (41,800) Shares Weighted average shares outstanding 12,633 11,153 ---------- ----------- Basic earnings (loss) per share $ (0.16) $ (3.75) ========== =========== DILUTED EARNINGS (LOSS) PER SHARE Net loss $ (1,982) $ (41,800) Shares Weighted average shares outstanding 12,633 11,153 ---------- ----------- Basic earnings (loss) per share $ (0.16) $ (3.75) ========== ===========