| Date | Time | Source | Headline | Symbol | Company |
| 07/06/2011 | 12:00 | Marketwired | American Petro-Hunter (OTCBB: AAPH) Drilling in North Oklahoma Hot-Spot | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 06/06/2011 | 19:22 | Edgar (US Regulatory) | Post-Effective Amendment to an S-8 filing (S-8 POS) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 06/06/2011 | 19:19 | Edgar (US Regulatory) | Post-Effective Amendment to an S-8 filing (S-8 POS) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 06/06/2011 | 12:55 | Edgar (US Regulatory) | Amended tender offer statement by Third Party (SC TO-T/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 06/06/2011 | 12:01 | Business Wire | Chesapeake Energy Corporation Completes Tender Offer for Bronco Drilling Company, Inc. | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 02/06/2011 | 22:21 | Edgar (US Regulatory) | Amended Statement of Beneficial Ownership (SC 13D/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 31/05/2011 | 21:11 | Edgar (US Regulatory) | Amended Statement of Ownership: Solicitation (SC 14D9/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 31/05/2011 | 21:07 | Edgar (US Regulatory) | Amended tender offer statement by Third Party (SC TO-T/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 31/05/2011 | 21:01 | Business Wire | Chesapeake Energy Corp. & Bronco Drilling Company, Inc. Announce Entry into an Agreement in Principle in Shareholder Lawsuit | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 23/05/2011 | 21:04 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 20/05/2011 | 16:18 | Edgar (US Regulatory) | Amended tender offer statement by Third Party (SC TO-T/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 18/05/2011 | 18:44 | Edgar (US Regulatory) | Amended Statement of Ownership: Solicitation (SC 14D9/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 18/05/2011 | 18:39 | Edgar (US Regulatory) | Amended tender offer statement by Third Party (SC TO-T/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 18/05/2011 | 15:42 | Dow Jones News | Chesapeake Extends Bronco Tender Offer Amid Shareholder Suit Pact | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 18/05/2011 | 14:38 | Business Wire | Chesapeake Energy Corp. & Bronco Drilling Company, Inc. Announce Entry into a Memorandum of Understanding in Shareholder Lawsuit | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 12/05/2011 | 21:17 | Edgar (US Regulatory) | Statement of Beneficial Ownership (SC 13D) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 10/05/2011 | 21:36 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 10/05/2011 | 21:30 | Business Wire | Bronco Drilling Company, Inc. Announces Monthly Operating Results | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 09/05/2011 | 17:07 | Edgar (US Regulatory) | Quarterly Report (10-Q) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 06/05/2011 | 12:31 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 06/05/2011 | 12:30 | Business Wire | Bronco Drilling Company, Inc. Announces First Quarter 2011 Results | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 03/05/2011 | 21:14 | Edgar (US Regulatory) | Amended Statement of Ownership: Solicitation (SC 14D9/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 02/05/2011 | 21:49 | Dow Jones News | Chesapeake Energy Swings To 1Q Loss On Derivatives, Lower Revenue | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 29/04/2011 | 22:14 | Edgar (US Regulatory) | Amended Annual Report (10-K/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 29/04/2011 | 22:13 | Edgar (US Regulatory) | Amended Annual Report (10-K/A) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 25/04/2011 | 22:04 | Edgar (US Regulatory) | Statement of Beneficial Ownership (SC 13D) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 22/04/2011 | 21:14 | Edgar (US Regulatory) | Written communication by the subject company relating to a third party tender offer (SC14D9C) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 22/04/2011 | 21:13 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 22/04/2011 | 18:09 | Dow Jones News | Facing Backlog, US Oil And Gas Producers Building Service Sides | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |
| 21/04/2011 | 16:12 | Edgar (US Regulatory) | Statement of Beneficial Ownership (SC 13D) | NASDAQ:BRNC | Bronco Drilling Company, Inc. (MM) |