UNITED FIRE & CASUALTY COMPANY AND SUBSIDIARIES EXHIBIT 11. COMPUTATION OF EARNINGS PER COMMON SHARE - ------------------------------------------------------------------------------ (Dollars in Thousands Except Per Share Data and Number of Shares) - ------------------------------------------------------------------------------ Weighted Average Three-Month Periods Ended Number of Shares Net Earnings Per June 30, Outstanding Income Common Share - ------------------------------------------------------------------------------ 1998 10,685,374 $12,610 $1.18 1997 10,727,408 5,118 0.48 - ------------------------------------------------------------------------------ - ------------------------------------------------------------------------------ (Dollars in Thousands Except Per Share Data and Number of Shares) - ------------------------------------------------------------------------------ Weighted Average Six-Month Periods Ended Number of Shares Net Earnings Per June 30, Outstanding Income Common Share - ------------------------------------------------------------------------------ 1998 10,702,805 $21,492 $2.01 1997 10,727,559 12,521 1.17 - ------------------------------------------------------------------------------ Computation of weighted average number of common and common equivalent shares: - ------------------------------------------------------------------------------ Three-Month Periods Ended June 30, 1998 1997 - ------------------------------------------------------------------------------ Common shares outstanding beginning of the period 10,709,222 10,727,712 Weighted average of the common shares purchased and retired or reissued (23,848) (304) - ------------------------------------------------------------------------------ Weighted average number of common shares 10,685,374 10,727,408 - ------------------------------------------------------------------------------ - ------------------------------------------------------------------------------ - ------------------------------------------------------------------------------ Six-Month Periods Ended June 30, 1998 1997 - ------------------------------------------------------------------------------ Common shares outstanding beginning of the period 10,727,322 10,727,712 Weighted average of the common shares purchased and retired or reissued (24,517) (153) - ------------------------------------------------------------------------------ Weighted average number of common shares 10,702,805 10,727,559 - ------------------------------------------------------------------------------ - ------------------------------------------------------------------------------ 15