Union Drilling Announces Fourth Quarter 2006 Earnings Release and Conference Call Schedule

FORT WORTH, Texas, Feb. 14 /PRNewswire-FirstCall/ — Union Drilling, Inc. announced today that it will release its 2006 fourth quarter and year end results after the market closes on Wednesday, March 7, 2007. In conjunction with the release, the company has scheduled a conference call, which will be broadcast live over the Internet, on Thursday, March 8, 2007 at 9:30 a.m. eastern time.

    What:   Union Drilling Fourth Quarter 2006 Earnings Conference Call     When:   Thursday, March 8, 2007 at 9:30 a.m. eastern time     How:    Live via phone — By dialing 303-262-2140, or live over the            Internet by logging onto the web at the address below     Where:  http://www.uniondrilling.com/ , in the “Investor Relations”            section of the Company’s website   

For those who cannot listen to the live call, a telephonic replay will be available through March 15, 2007 and may be accessed by calling 303-590-3000 and using the pass code 11083575#. Also, an archive of the webcast will be available after the call for a period of 60 days on the “Investor Relations” section of the Company’s website.

Union Drilling, Inc., headquartered in Ft. Worth, Texas, provides contract land drilling services and equipment, primarily to natural gas producers, in the United States. Union Drilling currently owns 75 rigs and specializes in unconventional drilling techniques.

    Contacts:  Union Drilling, Inc.               Christopher D. Strong, CEO               817-735-8777               Dan Steigerwald, CFO               817-735-8776                DRG&E               Ken Dennard / Ben Burnham               713-529-6600  

UDRL-E

Union Drilling, Inc.

CONTACT: Christopher D. Strong, CEO, +1-817-735-8777, or DanSteigerwald, CFO, +1-817-735-8776, both of Union Drilling, Inc.; or KenDennard or Ben Burnham, both of DRG&E, +1-713-529-6600, for Union Drilling,Inc.

Web site: http://www.uniondrilling.com/