| Date | Event |
| 18-Nov-09 | PIONEER DRILLING CO Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 12-Nov-09 | PIONEER DRILLING CO Files SEC form 8-K, Entry into a Material Definitive Agreement, Other Events, Financial Statement |
| 5-Nov-09 | PIONEER DRILLING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhib |
| 5-Nov-09 | Earnings announcement |
| 15-Oct-09 | Price hit new 52-week high ($8.37) |
| 7-Oct-09 | PIONEER DRILLING CO Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 6-Oct-09 | PIONEER DRILLING CO Files SEC form 8-K, Entry into a Material Definitive Agreement, Other Events, Financial Statement |
| 1-Oct-09 | Pioneer Drilling upgraded by UBS |
| 23-Sep-09 | PIONEER DRILLING CO Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 6-Aug-09 | PIONEER DRILLING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhib |
| 14-Jul-09 | PIONEER DRILLING CO Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 21-May-09 | PIONEER DRILLING CO Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 7-May-09 | PIONEER DRILLING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhib |
| 16-Mar-09 | Price hit new 52-week low ($3.35) |
| 12-Mar-09 | Price hit new 52-week low ($3.38) |
| 9-Mar-09 | Price hit new 52-week low ($3.44) |
| 4-Mar-09 | PIONEER DRILLING CO Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 26-Feb-09 | PIONEER DRILLING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhib |
| 14-Jan-09 | PIONEER DRILLING CO Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhibits |
| 13-Jan-09 | PIONEER DRILLING CO Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 15-Dec-08 | PIONEER DRILLING CO Files SEC form 8-K, Amendments to Articles of Inc. or Bylaws; Change in Fiscal Year, Other Events |
| 13-Nov-08 | PIONEER DRILLING CO Files SEC form 8-K, Regulation FD Disclosure |
| 6-Nov-08 | PIONEER DRILLING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhib |