Stock Trading History of Tisdale T Mark

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Tisdale T Mark since year 2005. The trader's CIK number is 1200314. At the time of this reporting, Tisdale T Mark is the VP and General Counsel of Clayton Williams Energy Inc /de . (stock ticker symbol CWEI). See this page for all insider trading activities at Clayton Williams Energy Inc /de .

Stock purchases, sales, and option exercises reported by insider *Tisdale T Mark* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-06-05	CWEI	Clayton Williams Energy Inc /de	Sale	3,100	97.75	303,039

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Tisdale T Mark (VP and General Counsel of Clayton Williams Energy Inc /de at the time of this reporting) see the Securities and Exchange Commission (SEC) website.