X0202 4 2008-05-30 0001022705 TESCO CORP TESO 0001364332 Kayl Robert L 3993 W. SAM HOUSTON PARKWAY N. SUITE 100 HOUSTON TX 77043 1 V.P. & Corporate Controller Common Stock 2008-05-30 4 M 0 3000 18.74 A 3000 D Common Stock 2008-05-30 4 M 0 2400 19.68 A 5400 D Common Stock 2008-05-30 4 S 0 100 34.05 D 5300 D Common Stock 2008-05-30 4 S 0 200 34.06 D 5100 D Common Stock 2008-05-30 4 S 0 2400 33.09 D 2700 D Common Stock 2008-05-30 4 S 0 2700 33.97 D 0 D Option to Purchase 18.74 2008-05-30 4 M 0 3000 0 D 2013-05-18 Common Stock 3000 22000 D Option to Purchase 19.68 2008-05-30 4 M 0 2400 0 D 2012-08-15 Common Stock 2400 8250 D The Reporting Person exercised an option to purchase 3,000 shares from a grant dated May 18, 2006. Based on the noon rate of exchange of the Bank of Canada on the date of exercise (May 30, 2008), the converted price is US $21.12. Based on the closing rate of exchange of the Bank of Canada on the date of the grant, the converted price was US $18.74. The actual exercise price was C $21.00. The Reporting Person exercised an option to purchase 2,400 shares from a grant dated August 15, 2005. The original exercise price was C$14.97, but it was repriced on December 31, 2007 and the new exercise price was C$19.45. Based on the noon rate of exchange of the Bank of Canada on the date of exercise (May 30, 2008), the converted price is US $19.56. Based on the closing rate of exchange of the Bank of Canada on the date of the re-priced grant, the converted price was US $19.68. Based on the noon rate of exchange of the Bank of Canada on the date of exercise, the sale price is converted to US $34.05. The actual sale price is C $33.85. Based on the noon rate of exchange of the Bank of Canada on the date of exercise, the sale price is converted to US $34.06. The actual sale price is C $33.86. Based on the noon rate of exchange of the Bank of Canada on the date of exercise, the sale price is converted to US $33.09. The actual sale price is C $32.90. Based on the noon rate of exchange of the Bank of Canada on the date of exercise, the sale price is converted to US $33.97. The actual sale price is C $33.77. Based on the noon rate of exchange of the Bank of Canada on the date of exercise (May 30, 2008), the converted price is US $21.12. Based on the closing rate of exchange of the Bank of Canada on the date of the grant, the converted price was US $18.74. The actual exercise price was C $21.00. The Option to Purchase vested in three annual installments of 8,500, 8,250 and 8,250 respectively beginning 05/18/2007. The original exercise price was C$14.97, but it was repriced on December 31, 2007 and the new exercise price was C$19.45. Based on the noon rate of exchange of the Bank of Canada on the date of exercise (May 30, 2008), the converted price is US $19.56. Based on the closing rate of exchange of the Bank of Canada on the date of the re-priced grant, the converted price was US $19.68. The Option to Purchase vests equally over three years, beginning August 15, 2006. James A. Lank, Attorney-in-Fact 2008-06-03