Bronco Drilling announced that the utilization for the company's drilling fleet was 71% for the month of December 2007, compared to 73% in the previous month and 76% in the third quarter of 2007. The company reported an average of 47 marketed rigs in December 2007, compared to 48 in the previous month and 53 in the third quarter of 2007.

The average dayrate on operating rigs as of December 31, 2007, was $17,476 compared to $17,414 as of November 30, 2007, and $17,256 for the third quarter of 2007.

The company reported an average of 45 marketed workover rigs in December 2007, compared to 42 in the previous month and 35 in the third quarter of 2007.