EXHIBIT 11 NATIONAL WESTERN LIFE INSURANCE COMPANY AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE For the Three Months Ended March 31, 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 $ 14,103 10,370 Denominator: Basic earnings per share - weighted-average shares 3,498 3,492 Effect of dilutive stock options 37 33 Diluted earnings per share - adjusted weighted-average shares for assumed conversions 3,535 3,525 Basic earnings per share: Net earnings $ 4.03 2.97 Diluted earnings per share: Net earnings $ 3.99 2.94