HPS Investment Partners

Petition alleging fraud in Alyeska Master Fund LP, Alyeska Master Fund 2 LP, and Alyeska Master Fund 3 LP, all of the Cayman Islands v. Alta Mesa Resources, Inc., James T. Hackett, Thomas J. Walker, William Gutermuth, Jeffrey H. Tepper, Diana J. Walters, Stephen Coats, Harlan H. Chappelle, Michael E. Ellis, Ronald Smith, David M. Leuschen, Pierre F. Lapeyre, Jr., William W. McMullen, Don Dimitrievich, Donald Sinclair, Riverstone Holdings LLC, Bayou City Energy Management, LLC, HPS Investment Partners, LLC, and ARM Energy Holdings LLC at the District Court for Harris County, Texas.

Complaint alleging securities fraud in Orbis Global Equity LE Fund, of Australia; Orbis Global Equity Fund, of Australia; Orbis Global Balanced Fund, of Australia; Orbis SICAV, of Luxembourg; Orbis Institutional Global Equity L.P., of Delaware; Orbis Global Equity Fund Limited, of Bermuda; Orbis Institutional Funds Limited, of Bermuda; Allan Gray Australia Balanced Fund, of Australia; Orbis OEIC, of England and Wales, and Orbis Institutional U.S. Equity L.P., of Delaware v. Alta Mesa Resources, Inc., James T. Hackett, Thomas J. Walker, William Gutermuth, Jeffrey H. Tepper, Diana J. Walters, Stephen Coats, Harlan H. Chappelle, Michael E. Ellis, Ronald Smith, David M. Leuschen, Pierre F. Lapeyre, Jr., William W. McMullen, Don Dimitrievich, Donald Sinclair, Riverstone Holdings LLC, Bayou City Energy Management, LLC, HPS Investment Partners, LLC, and ARM Energy Holdings LLC at the U.S. District Court for the Southern District of Texas.

Complaint alleging fraud involving "the sustained and intentional abuse by Defendants of the corporate form known as a special purpose acquisition company (“SPAC”) - in which a blank-check company conducts an initial public offering and then subsequently merges with an operating company that then becomes publicly traded - in order to mislead public investors" in Alyeska Master Fund LP, Alyeska Master Fund 2 LP, and Alyeska Master Fund 3 LP, all of the Cayman Islands v. Alta Mesa Resources, Inc., James T. Hackett, Thomas J. Walker, William Gutermuth, Jeffrey H. Tepper, Diana J. Walters, Stephen Coats, Harlan H. Chappelle, Michael E. Ellis, Ronald Smith, David M. Leuschen, Pierre F. Lapeyre, Jr., William W. McMullen, Don Dimitrievich, Donald Sinclair, Riverstone Holdings LLC, Bayou City Energy Management, LLC, HPS Investment Partners, LLC, and ARM Energy Holdings LLC at the U. S. District Court for the Southern District of Texas.

Complaint alleging fraud in 245 E. 19 Realty LLC v. 245 E. 19th Street Parking LLC, Icon Parking Holdings LLC, HPS Investment Partners LLC, AP Mezzanine Partners II LP, Offshore Mezzanine Partners Master Fund II LP, of the Cayman Islands; Institutional Mezzanine Partners II Subsidiary LP, Jeffrey Fitts, and Scot French at the Supreme Court of the State of New York, County of New York.