X0202 4 2008-05-30 0 0000060849 LUFKIN INDUSTRIES INC LUFK 0001185411 SMITH DOUGLAS V P. O. BOX 849 LUFKIN TX 75902 1 0 0 0 Common Stock 2008-05-30 4 M 0 4100 57.25 A 43262 D Common Stock 2008-05-30 4 S 0 1000 80.00 D 42262 D Common Stock 2008-05-30 4 S 0 208 80.02 D 42054 D Common Stock 2008-05-30 4 S 0 487 80.05 D 41567 D Common Stock 2008-05-30 4 S 0 800 80.06 D 40767 D Common Stock 2008-05-30 4 S 0 345 80.08 D 40422 D Common Stock 2008-05-30 4 S 0 760 80.10 D 39662 D Common Stock 2008-05-30 4 S 0 100 80.11 D 39562 D Common Stock 2008-05-30 4 S 0 100 80.12 D 39462 D Common Stock 2008-05-30 4 S 0 100 80.14 D 39362 D Common Stock 2008-05-30 4 S 0 200 80.20 D 39162 D Option to Purchase Common Stock 57.25 2008-05-30 4 M 0 4100 57.25 D 2006-11-28 2014-02-09 Common Stock 4100 118500 D Douglas V. Smith 2008-06-03