Bronco Drilling Company Fourth Quarter 2006 Earnings Conference Call

OKLAHOMA CITY, Feb. 1 /PRNewswire-FirstCall/ — What: Bronco Drilling’s Fourth Quarter Earnings Call When: Thursday, February 22, 2007 at 11:00 a.m. ET

How: Dial-in # 866-356-3377 ; International Dial-in # 617-597-5392; Participant Code 42694079.

Individuals interested in participating in the call should call at least five minutes prior to the call. The conference call will also be available via the Internet at http://phx.corporate-ir.net/phoenix.zhtml?c=191804&p=irol- IRHome. Please go to the website at least fifteen minutes prior to the call to register, download and install any necessary software. For those who cannot listen to the live call, a replay will be available through May 31, 2007 at 888-286-8010 or internationally at 617-801-6888 using the passcode 40496711. Also, an archive of the webcast will be available at the following link http://phx.corporate-ir.net/phoenix.zhtml?c=191804&p=irol-IRHome.

Bronco Drilling Company, Inc., headquartered in Oklahoma City, Oklahoma, is a provider of contract land drilling services to oil and natural gas exploration and production companies.

   Bob Jarvis   Investor Relations   Bronco Drilling Company, Inc.   405-242-4444 EXT: 102   bjarvis@broncodrill.com  

Bronco Drilling Company, Inc.

CONTACT: Bob Jarvis, Investor Relations of Bronco Drilling Company,Inc., +1-405-242-4444, EXT: 102, or bjarvis@broncodrill.com