EXHIBIT 11 NATIONAL WESTERN LIFE INSURANCE COMPANY AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE For the Three 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 $ 12,198 12,270 Denominator: Basic earnings per share - weighted-average shares 3,499 3,494 Effect of dilutive stock options 31 37 Diluted earnings per share - adjusted weighted-average shares for assumed conversions 3,530 3,531 Basic earnings per share: Net earnings $ 3.49 3.51 Diluted earnings per share: Net earnings $ 3.46 3.48