EXHIBIT B

Transactions in Common Stock by Pebbleton During the Past Sixty (60) Days

     Exhibit B of the Original Schedule 13D is hereby amended to add the following:

     The following purchases of shares of Pioneer Drilling Company have been made by Pebbleton Corporation N.V. and were effected on NYSE Alternext U.S., formerly known as the American Stock Exchange, since February 27, 2009:

Date	Securities Involved		Price per Share
March 2, 2009		152,024	$	3.91
March 3, 2009		189,011	$	3.89
March 4, 2009		586,000	$	3.99
March 5, 2009		464,700	$	3.94

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