Union Drilling Announces First Quarter 2007 Earnings Release and Conference Call Schedule

FORT WORTH, Texas, April 26 /PRNewswire-FirstCall/ — Union Drilling, Inc. announced today that it will release its 2007 first quarter results after the market closes on Thursday, May 3, 2007. In conjunction with the release, the company has scheduled a conference call, which will be broadcast live over the Internet, on Friday, May 4, 2007 at 9:30 a.m. eastern time.

    What:    Union Drilling First Quarter 2007 Earnings Conference Call    When:    Friday, May 4, 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 May 11, 2007 and may be accessed by calling 303-590-3000 and using the pass code 11088677#. 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 77 rigs and specializes in unconventional drilling techniques.

    Contacts:  Union Drilling, Inc.               Christopher D. Strong, CEO               A.J. Verdecchia, CFO               817-735-8793                DRG&E               Ken Dennard / Ben Burnham               713-529-6600  

UDRL-E

Union Drilling, Inc.

CONTACT: Christopher D. Strong, CEO, or A.J. Verdecchia, CFO, both ofUnion Drilling, Inc., +1-817-735-8793; or Ken Dennard, or Ben Burnham, both ofDRG&E, +1-713-529-6600, for Union Drilling, Inc.

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