Ryan & Maniskas, LLP Announces Investigation Into The Proposed Merger Of Mariner Energy, Inc.

Ryan & Maniskas, LLP is investigating whether the directors of Mariner Energy, Inc. ("Mariner" or the “Company”) (NYSE: ME) breached their fiduciary duties in approving the proposed merger of the Company with Apache Corporation (“Apache”). Under the agreement, Mariner shareholders will receive, in aggregate, 0.17043 of a share of Apache common stock and $7.80 in cash for each outstanding share of Mariner's common stock, subject to an election feature and proration. The investigation concerns whether the deal undervalues Mariner shareholders and also concerns possible breaches of fiduciary duty and other violations of law related to approval of the transaction by Company’s board of directors.

If you own shares of Mariner 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, visit: www.rmclasslaw.com/cases/mariner, or contact Richard A. Maniskas, Esquire toll-free: [phone], or by e-mail: [e-mail]. For more information about class action cases in general, please visit our website: www.rmclasslaw.com.

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