X0306 4 2017-06-02 0 0001504461 NGL Energy Partners LP NGL 0001503547 Highstar Capital IV, L.P. 277 PARK AVENUE, 45TH FLOOR NEW YORK NY 10172 1 0 0 0 Common Units 2017-06-02 4 S 0 27921 13.81 D 379732 I See Footnotes Common Units 2017-06-05 4 S 0 129638 13.82 D 250094 I See Footnotes The securities are owned directly by Highstar NGL Prism/IV-A Interco LLC ("Highstar Prism") and Highstar NGL Main Interco LLC ("Highstar Main" and together with Highstar Prism, the "Purchasers"). The members of Highstar Prism are NGL Prism/IV-A Blocker LLC and Highstar Capital GP IV, L.P. ("Highstar GP IV"). The members of NGL Prism/IV-A Blocker LLC are Highstar Capital IV-A, L.P. ("Highstar IV-A"), Highstar Capital IV Prism, L.P. ("Highstar IV Prism"), Harel Insurance Company Ltd., Harel Pension Fund Management Ltd., solely on behalf of Harel Pension, Harel Pension Fund Management Ltd., solely on behalf of Harel General Plan, Harel Provident Funds and Education Funds Ltd., solely on behalf of Harel Provident Fund, Harel Provident Funds and Education Funds Ltd., solely on behalf of Harel Study Fund, and Tzava Hakeva Saving Fund - Provident Funds Management Company Ltd., solely on behalf of Tzava Hakeva Savings Fund, and the non-member manager of NGL Prism/IV-A Blocker LLC is Highstar GP IV. The members of Highstar Main are NGL Main Blocker LLC and Highstar Capital IV, L.P. ("Highstar IV"), and the non-member manager of Highstar Main is Highstar GP IV. Highstar IV is the sole member of NGL Main Blocker LLC and Highstar GP IV is the non-member manager of NGL Main Blocker LLC. Highstar GP IV is the general partner of each of Highstar IV, Highstar IV-A and Highstar IV Prism. The general partner of Highstar GP IV is Highstar Capital GP IV, LLC. The sole member of Highstar Capital GP IV, LLC is Highstar Capital GP IV Holdings. The sole director of Highstar Capital GP IV Holdings is Oaktree Capital Management, L.P., and the sole shareholder of Highstar Capital GP IV Holdings is Oaktree Fund GP II, L.P., and the general partner of Oaktree Fund GP II, L.P. is Oaktree Capital II, L.P. The general partner of each of Oaktree Capital II, L.P. and Oaktree Capital Management, L.P. is Oaktree Holdings, Inc. The sole shareholder of Oaktree Holdings, Inc. is Oaktree Capital Group, LLC. The duly elected manager of Oaktree Capital Group, LLC is Oaktree Capital Group Holdings GP, LLC. Oaktree Capital Group Holdings GP, LLC is a limited liability company managed by an executive committee, the members of which are Howard S. Marks, Bruce A. Karsh, Jay S. Wintrob, John B. Frank and Sheldon M. Stone. Highstar IV may be deemed to be a director by deputization as a result of its ability to appoint a director to the board of directors of the NGL Energy Partners LP (the "Partnership"), pursuant to that certain Amended and Restated Board Representation and Observation Rights Agreement, dated as of June 24, 2016, by and among the Partnership, NGL Energy Holdings LLC, the Purchasers and Highstar Capital IV, L.P. HIGHSTAR CAPITAL IV, L.P., By: Highstar Capital GP IV, L.P., its general partner, By: Highstar Capital GP IV, LLC, its general partner, /s/ Scott Litman, Authorized Signatory 2017-06-06 HIGHSTAR CAPITAL IV, L.P., By: Highstar Capital GP IV, L.P., its general partner, By: Highstar Capital GP IV, LLC, its general partner, /s/ Bret Budenbender, Authorized Signatory 2017-06-06