EXHIBIT 11 NATIONAL WESTERN LIFE INSURANCE COMPANY AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE For the Six Months Ended June 30, 1999 and 1998 (Unaudited) (In thousands except per share data) 1999 1998 Numerator for basic and diluted earnings per share: Earnings available to common stockholders before and after assumed conversions: Net earnings $ 26,301 22,640 Denominator: Basic earnings per share - weighted-average shares 3,499 3,493 Effect of dilutive stock options 34 35 Diluted earnings per share - adjusted weighted-average shares for assumed conversions 3,533 3,528 Basic earnings per share: Net earnings $ 7.52 6.48 Diluted earnings per share: Net earnings $ 7.45 6.42