Ryan & Maniskas, LLP ( www.rmclasslaw.com/cases/udrl) is investigating potential claims against the board of directors of Union Drilling, Inc. (“Union Drilling” or the “Company”) (NASDAQ: UDRL) concerning possible breaches of fiduciary duty and other violations of law related to the Company’s efforts to sell the Company to Sidewinder Drilling Inc., Houston-based land drilling company controlled by Avista Capital Partners, in an all-cash deal valued at about $242 million. Our investigation concerns possible breaches of fiduciary duty and other violations of law related to the approval of the transaction by the Company’s board of directors; in particular, whether the Company undertook a fair process to obtain fair consideration for all shareholders of Union Drilling. For more information regarding our investigation, please contact Ryan & Maniskas, LLP (Richard A. Maniskas, Esquire) toll-free at (877) 316-3218 or by email at email@example.com or visit: www.rmclasslaw.com/cases/urdl. Under the terms of the proposed transaction, Union Drilling stockholders will receive approximately $6.50 in cash for each share of Union Drilling they own. If you own shares of Union Drilling and would like to learn more about these claims or if you wish to discuss these matters and have any questions concerning this announcement or your rights, contact Richard A. Maniskas, Esquire toll-free at (877) 316-3218 or to sign up online, visit: www.rmclasslaw.com/cases/udrl. You may also email Mr. Maniskas at firstname.lastname@example.org. For more information about class action cases in general, please visit our website: www.rmclasslaw.com. Ryan & Maniskas, LLP is a national shareholder litigation firm. Ryan & Maniskas, LLP is devoted to protecting the interests of individual and institutional investors in shareholder actions in state and federal courts nationwide.