X0306 4 2020-07-28 1 0001704235 Quintana Energy Services Inc. "QES" 0001719405 Archer Holdco LLC 5510 CLARA RD. HOUSTON TX 77041 1 0 1 0 0001731262 Archer Well Co Inc. 5510 CLARA RD. HOUSTON TX 77041 0 0 1 0 0001732897 Archer Assets UK Ltd 5510 CLARA RD. HOUSTON TX 77041 0 0 1 0 0001498927 Archer Ltd 5510 CLARA RD. HOUSTON TX 77041 0 0 1 0 Common stock 2020-07-28 4 D 0 9494306 D 0 D On July 28, 2020, pursuant to the Agreement and Plan of Merger, dated May 3, 2020 (the "Merger Agreement"), by and among Quintana Energy Services Inc. ("QES"), KLX Energy Services Holdings, Inc. ("KLXE"), Krypton Intermediate LLC, and Kypton Merger Sub Inc. ("Merger Sub"), Merger Sub merged with and into QES (the "Merger"), with QES surviving the Merger as the wholly owned subsidiary of KLXE. Pursuant to the Merger Agreement, at the effective time of the Merger, each share of QES's common stock issued and outstanding immediately prior to the effective time of the Merger, was converted into, and became exchangeable for, 0.0969 shares of KLXE common stock. On July 27, 2020 (the last trading day prior to consummation of the Merger and KLXE's 1-for-5 reverse stock split), the closing price of one share of KLXE common stock was $2.00. These shares are directly held by Archer Holdco LLC, a wholly-owned subsidiary of Archer Well Company Inc., which is a wholly-owned subsidiary of Archer Assets UK Limited, which is a wholly-owned subsidiary of Archer Limited. Each of Archer Well Company Inc., Archer Assets UK Limited and Archer Limited may be deemed indirect beneficial owners of the reported securities. Each of Dag Skindlo and Gunnar Eliassen serves on the board of directors of the Issuer as a representative of the reporting person. As a result, such reporting persons may be deemed a director by deputization for purposes of Section 16 of the Exchange Act. Each reporting person disclaims beneficial ownership of all the shares reported in this Form 4 except to the extent of such reporting person's respective pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. /s/ Max L. Bouthillette, attorney-in-fact for Archer Holdco LLC 2020-07-28 /s/ Max L. Bouthillette, attorney-in-fact for Archer Well Company Inc. 2020-07-28 /s/ Max L. Bouthillette, attorney-in-fact for Archer Assets UK Limited 2020-07-28 /s/ Max L. Bouthillette, attorney-in-fact for Archer Limited 2020-07-28