The information contained on this website is only a summary of the information presented in more detail in the Notice of Pendency of Class Action. The Notice is not an admission by Defendants or an expression of any opinion by the Court as to the merits of the Action, or a finding by the Court that the claims asserted by Class Representatives in the Action are valid. Because this website is just a summary, you should review the Notice for additional details.

Summary of the Litigation

The Notice is being sent pursuant to Rule 23 of the Federal Rules of Civil Procedure and an Order of the United States District Court for the Southern District of Texas (the “Court”) to inform you: (a) of a class action lawsuit that is now pending in the Court under the above caption (the “Action”) against (i) Alta Mesa Resources, Inc., formerly known as Silver Run II Acquisition Corp. (“AMR,” “Alta Mesa,” “Silver Run II” or the “Company”); (ii) the following former officers and directors of AMR: Harlan H. Chappelle, Stephen S. Coats, Don Dimitrievich, Michael Ellis, William D. Gutermuth, James T. Hackett,  Pierre F. Lapeyre, Jr., David M. Leuschen, William W. McMullen, Donald R. Sinclair, Ronald J. Smith, Jeffrey H. Tepper, Thomas J. Walker, and Diana Walters, (the “Individual Defendants”); and (iii) Riverstone Holdings LLC (“Riverstone”), HPS Investment Partners, LLC (“HPS”), Bayou City Energy Management, LLC (“BCE”) and ARM Energy Holdings LLC (“ARM Energy”) (the “Control Entity Defendants,” and collectively with AMR and the Individual Defendants, “Defendants”); and (b) that the Action has been certified by the Court to proceed as a class action on behalf of the Class (as that term is defined in Paragraph 1 of the Notice). The Notice is not a settlement notice and you are not being asked to submit a claim.

By an order granting Plaintiffs’ Motion for Class Certification dated January 24, 2022, the Court certified the following class (the “Class”):

1. All persons and entities that held shares of Alta Mesa (Silver Run II) common stock (CUSIP 02133L109; ticker “SRUN”), and/or Silver Run II Units (“Silver Run Units”) (CUSIP 82812A202; ticker “SRUNU”) on the January 22, 2018 record date that were entitled to vote on Alta Mesa’s proposed transaction with AMH and Kingfisher (the “Section 14a Class Members”);
    
2. All persons and entities that purchased or otherwise acquired Alta Mesa (Silver Run II) common stock (CUSIP 02133L109; ticker “SRUN”), Alta Mesa (Silver Run II) warrants (CUSIP 02133L117; ticker “SRUNW”), and/or Silver Run II Units (“Silver Run Units”) (CUSIP 82812A202; ticker “SRUNU”) on or after August 16, 2017 and prior to the closing of the Business Combination on February 9, 2018 (the “Silver Run Class Members”);
   
   and
    
3. All persons and entities that purchased or otherwise acquired Alta Mesa common stock (CUSIP 02133L109; ticker “AMR”) or Alta Mesa warrants (CUSIP 02133L117; ticker “AMRWW”) (other than those automatically converted from Silver Run Units by operation of the Business Combination) between the February 9, 2018 closing of the Business Combination and May 17, 2019 (inclusive) (the “Alta Mesa Class Members”)

Excluded from the Class are: (i) Defendants; (ii) the officers and directors of Alta Mesa, Silver Run II, Alta Mesa Holdings, LP (“AMH”), Kingfisher Midstream, LLC (“KFM”) and the Control Entity Defendants during the Class Period (the “Excluded Officers and Directors”); (iii) members of the immediate families of the Individual Defendants and of the Excluded Officers and Directors; (iv) any entity in which any Defendants, and Excluded Officer or (Director or any of their respective immediate family members has and/or had during the Class Period a controlling interest; (v) Defendants’ liability insurance carriers; (vi) any affiliates, parents or subsidiaries of Alta Mesa, Silver Run II, AMH, KFM or the Control Entity Defendants; (vii) all Alta Mesa, Silver Run II, AMH, KFM and Control Entity Defendants’ plans that are covered by ERISA; and (viii) the legal representatives, heirs, agents, affiliates, successors-in-interest or assigns of any excluded person or entity, in their respective capacity as such.

The Class definition may be subject to change by the Court pursuant to Rule 23 of the Federal Rules of Civil Procedure.

Please read the Notice to fully understand your rights and options. Copies of the Notice can be found in the menu at the top of this page.

Payments to eligible claimants will be made only if the Court approves the Settlement and a Plan of Allocation, only after any appeals are resolved, and after the completion of all claims processing. Please be patient, as this process will take some time to complete.

How do I obtain more information?

Detailed information about the Litigation is contained in the Notice, a copy of which can be found in the menu at the top of this page. Additional information can also be obtained by contacting the Claims Administrator by calling toll-free 855-208-4124 or emailing info@AltaMesaSecuritiesLitigation.com or mailing a letter to:

Alta Mesa Resources Securities Litigation
c/o JND Legal Administration
PO Box 91218
Seattle, WA 98111

Inquiries should NOT be directed to the Court or the Clerk of the Court.