X0202 4 2007-10-31 0 0001000229 CORE LABORATORIES N V CLB 0001309016 Ogren D John 12568 MEMORIAL DRIVE HOUSTON TX 77024 1 0 0 0 Common Shares 2007-10-31 4 S 0 381 140.69 D 87000 D Common Shares 2007-10-31 4 S 0 500 142.00 D 86500 D Common Shares 2007-10-31 4 S 0 500 141.64 D 86000 D Common Shares 2007-10-31 4 S 0 500 141.61 D 85500 D Common Shares 2007-10-31 4 S 0 500 142.00 D 85000 D Common Shares 2007-10-31 4 S 0 500 141.50 D 84500 D Common Shares 2007-10-31 4 S 0 500 142.98 D 84000 D Common Shares 2007-10-31 4 S 0 500 143.14 D 83500 D Common Shares 2007-10-31 4 S 0 500 143.09 D 83000 D Common Shares 2007-10-31 4 S 0 500 143.04 D 82500 D Common Shares 2007-10-31 4 S 0 500 143.00 D 82000 D Common Shares 2007-10-31 4 S 0 500 143.10 D 81500 D Common Shares 2007-10-31 4 S 0 500 142.92 D 81000 D Common Shares 2007-10-31 4 S 0 500 143.25 D 80500 D Common Shares 2007-10-31 4 S 0 500 144.06 D 80000 D Common Shares 2007-10-31 4 S 0 500 143.93 D 79500 D Common Shares 2007-10-31 4 S 0 500 143.85 D 79000 D Common Shares 2007-10-31 4 S 0 500 143.75 D 78500 D Common Shares 2007-10-31 4 S 0 500 144.00 D 78000 D Common Shares 2007-10-31 4 S 0 500 143.90 D 77500 D Common Shares 2007-10-31 4 S 0 500 143.55 D 77000 D Common Shares 2007-10-31 4 S 0 500 143.50 D 76500 D Common Shares 2007-10-31 4 S 0 500 143.35 D 76000 D Common Shares 2007-10-31 4 S 0 500 143.25 D 75500 D Common Shares 2007-10-31 4 S 0 500 143.52 D 75000 D Common Shares 2007-10-31 4 S 0 500 143.54 D 74500 D Common Shares 2007-10-31 4 S 0 500 143.53 D 74000 D Common Shares 2007-10-31 4 S 0 500 144.85 D 73500 D Common Shares 2007-10-31 4 S 0 500 144.84 D 73000 D Common Shares 2007-10-31 4 S 0 500 144.85 D 72500 D The number of shares held by the reporting person has been modified to correct an error in previous filings. There are 2 Form 4s being filed today for this reporting person due to EDGAR limitation; all sales were completed the same day for a total of 37,381 shares sold by such reporting person. /s/ John D. Denson, Attorney-in-fact 2007-11-01