Stock Trading History of Perez Victor M

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 Perez Victor M since year 2005. The trader's CIK number is 1227412. At the time of this reporting, Perez Victor M is the Chief Financial Officer of Allis Chalmers Energy Inc. (stock ticker symbol ALY).

Stock purchases, sales, and option exercises reported by *Perez Victor M* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-06-05	ALY	Allis Chalmers Energy Inc.	Sale	6,000	22.06	132,360
2007-06-05	ALY	Allis Chalmers Energy Inc.	Option Exercise	6,000	4.85	29,099
2007-05-23	ALY	Allis Chalmers Energy Inc.	Option Exercise	6,000	4.85	29,099
2007-05-23	ALY	Allis Chalmers Energy Inc.	Sale	6,000	19.03	114,160
2007-05-21	ALY	Allis Chalmers Energy Inc.	Sale	6,000	18.76	112,530
2007-05-21	ALY	Allis Chalmers Energy Inc.	Option Exercise	6,000	4.85	29,099
2006-11-13	ALY	Allis Chalmers Energy Inc.	Sale	12,000	18.17	218,000
2006-11-13	ALY	Allis Chalmers Energy Inc.	Option Exercise	12,000	4.85	58,199

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 Perez Victor M (Chief Financial Officer of Allis Chalmers Energy Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.