X0202 4 2007-04-23 0 0000894405 ARKANSAS BEST CORP /DE/ ABFS 0000915285 YOUNG ROBERT A III 3801 OLD GREENWOOD ROAD FORT SMITH AR 72903 1 0 0 0 Common Stock, par value $0.01 per share 2007-04-23 4 A 0 3700 A 264762 D Common Stock, par value $0.01 per share 1805639 I By limited partnership Field intentionally left blank. Robert A. Young III retains sole voting and investment power of the 1,805,639 shares of Arkansas Best Corporation common stock held in the R.A. Young III Investments Limited Partnership. /s/ Robert A. Young III 2007-04-24