RSP PERMIAN, INC. SHAREHOLDER ALERT: Rigrodsky & Long, P.A. Announces Investigation of Buyout

Rigrodsky & Long, P.A.:

• Do you own shares of RSP Permian, Inc. (NYSE: RSPP)?
• Did you purchase any of your shares prior to March 28, 2018?
• Do you think the proposed buyout is fair?
• Do you want to discuss your rights?

Rigrodsky & Long, P.A. announces that it is investigating potential legal claims against the board of directors of RSP Permian, Inc. ("RSP" or the "Company") RSPP regarding possible breaches of fiduciary duties and other violations of law related to the Company's entry into an agreement to be acquired by Concho Resources Inc. ("Concho") CXO in a transaction valued at approximately $9.5 billion. Under the terms of the agreement, shareholders of RSP will receive 0.320 shares of Concho common stock for each share of RSP common stock. Upon closing of the transaction, Concho shareholders will own approximately 74.5% of the combined company, and RSP shareholders will own approximately 25.5%.

If you own common stock of RSP and purchased any shares before March 28, 2018, if you would like to learn more about this investigation, or if you have any questions concerning this announcement or your rights or interests, please contact Seth D. Rigrodsky or Gina M. Serra at Rigrodsky & Long, P.A., 300 Delaware Avenue, Suite 1220, Wilmington, Delaware 19801, by telephone at (888) 969-4242, or by e-mail at info@rl-legal.com.

Rigrodsky & Long, P.A., with offices in Wilmington, Delaware, Garden City, New York, and San Francisco, California, has recovered hundreds of millions of dollars on behalf of investors and achieved substantial corporate governance reforms in numerous cases nationwide, including federal securities fraud actions, shareholder class actions, and shareholder derivative actions.

Attorney advertising. Prior results do not guarantee a similar outcome.

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