EXHIBIT 11 MINNESOTA MINING AND MANUFACTURING COMPANY AND CONSOLIDATED SUBSIDIARIES COMPUTATION OF PER SHARE EARNINGS OF COMMON STOCK Year ended December 31 1995 1994 1993 (Millions) Income from continuing operations $1,306 $1,207 $1,133 Discontinued operations, net of income taxes (330) 115 130 Net income $ 976 $1,322 $1,263 Primary earnings per share: Continuing operations $ 3.11 $ 2.85 $ 2.61 Discontinued operations (.79) .28 .30 Earnings per share $ 2.32 $ 3.13 $ 2.91 Weighted average number of common shares outstanding 419,823,549 422,955,241 434,312,393 Fully diluted earnings per share: (1) Continuing operations $ 3.06 $ 2.83 $ 2.58 Discontinued operations (.77) .27 .30 Earnings per share $ 2.29 $ 3.10 $ 2.88 Weighted average number of common shares outstanding 419,823,549 422,955,241 434,312,393 Common equivalent shares 6,749,060 3,706,298 4,331,742 Average number of common shares outstanding and equivalents 426,572,609 426,661,539 438,644,135 All share and per-share data reflect a two-for-one stock split effective March 15, 1994. Primary earnings per share is computed by dividing net income by the weighted average number of common shares outstanding for each period. The calculation excludes the effect of common equivalent shares resulting from stock options using the treasury stock method as the effect would not be material. Fully diluted earnings per share are computed based on the weighted average number of common shares and common equivalent shares outstanding for each period. (1) This calculation is submitted in accordance with Regulation S-K item 601(b)(11), despite not being required by APB Opinion No. 15 because it results in dilution of less than 3 percent.