Bronco Drilling Underscores Monthly Operating Results

Bronco Drilling Company announced today operational results for the month ended and as of June 30, 2009.

Utilization for the Company's drilling fleet was 29% for the month of June compared to 31% for the previous month and 58% for the first quarter. The Company had an average of 45 marketed drilling rigs in June compared to 45 in the previous month and 45 for the first quarter.

The average dayrate on operating drilling rigs as of June 30, 2009, was $16,019 compared to $16,900 as of May 31, 2009, and $16,708 for the first quarter of 2009.

The Company cautions that several factors other than those discussed above may impact the Company's operating results and that a particular trend regarding the factors above may or may not be indicative of the Company's current or future financial performance.