X0206 3 2023-06-28 0 0001767042 Kodiak Gas Services, Inc. KGS 0001767028 Frontier TopCo Partnership, L.P. C/O EQT PARTNERS 1114 AVENUE OF THE AMERICAS, 45TH FLOOR NEW YORK NY 10036 0 0 1 0 0001834239 EQT Fund Management S.a r.l. 51A, BOULEVARD ROYAL, LUXEMBOURG GRAND DUCHY OF LUXEMBOURG N4 2449 LUXEMBOURG 0 0 1 0 0001972628 Frontier Topco GP, LLC C/O EQT PARTNERS 1114 AVENUE OF THE AMERICAS, 45TH FLOOR NEW YORK NY 10036 0 0 1 0 Common stock 59000000 I Held by Frontier TopCo Partnership, L.P. Consists of shares of common stock held directly by Frontier TopCo Partnership, L.P. ("Kodiak Holdings"). Frontier TopCo GP, LLC ("Frontier GP") is the general partner of Kodiak Holdings. EQT Infrastructure III SCSp ("EQT Infrastructure III") owns 100% of the membership interests in Frontier GP. EQT Fund Management S.a r.l. ("EFMS") has exclusive responsibility for the management and control of the business and affairs of investment vehicles which constitute the majority of the total commitments to EQT Infrastructure III. As such, EFMS has the power to control Frontier GP's voting and investment decisions and may be deemed to have beneficial ownership of the securities held by Kodiak Holdings. This filing shall not be deemed an admission that the Reporting Persons are beneficial owners of all securities covered by this filing for purposes of Section 16 of the Exchange Act or otherwise, and each Reporting Person disclaims beneficial ownership of these securities, except to the extent of such Reporting Person's pecuniary interest therein, if any. Frontier TopCo Partnership, L.P., By: Frontier TopCo GP, LLC, as its general partner, By: /s/ Joseph Turley, Name: Joseph Turley, Title: Officer 2023-06-28 Frontier TopCo GP, LLC, By: /s/ Joseph Turley, Name: Joseph Turley, Title: Officer 2023-06-28 EQT Fund Management S.a r.l., By: /s/ Sara Huda, Name: Sara Huda, Title: Manager and /s/ Joshua Stone, Name: Joshua Stone, Title: Manager 2023-06-28