X0202 4 2007-05-23 0 0000060849 LUFKIN INDUSTRIES INC LUFK 0001234303 ANDERSON JOHN F 910 VIRGINIA AVENUE NACOGDOCHES TX 75964 1 0 0 0 COMMON STOCK 2007-05-23 4 S 0 300 66.52 D 38632 D COMMON STOCK 2007-05-23 4 S 0 400 66.50 D 38232 D COMMON STOCK 2007-05-23 4 S 0 591 66.49 D 37641 D COMMON STOCK 2007-05-23 4 S 0 200 66.45 D 37441 D COMMON STOCK 2007-05-23 4 S 0 100 66.40 D 37341 D COMMON STOCK 2007-05-23 4 S 0 200 66.41 D 37141 D COMMON STOCK 2007-05-23 4 S 0 228 66.39 D 36913 D COMMON STOCK 2007-05-23 4 S 0 717 66.36 D 36196 D COMMON STOCK 2007-05-23 4 S 0 2264 66.35 D 33932 D John F. Anderson 2007-05-25