X0306 4 2019-03-08 0 0001522727 USA Compression Partners, LP USAC 0001280819 MANIAS WILLIAM G C/O USA COMPRESSION PARTNERS, LP 100 CONGRESS AVENUE, SUITE 450 AUSTIN TX 78701 0 1 0 0 See Remarks Common Units 2019-03-08 4 M 0 37989 A 197532 D Common Units 2019-03-08 4 M 0 13830 A 211362 D Common Units 2019-03-08 4 M 0 14627 A 225989 D Common Units 2019-03-08 4 D 0 13297 14.99 D 212692 D Common Units 2019-03-08 4 D 0 4841 14.99 D 207851 D Common Units 2019-03-08 4 D 0 5120 14.99 D 202731 D Phantom Units 2019-03-08 2019-03-08 4 M 0 37989 D 2019-03-08 2019-03-08 Common Units 37989 0 D Phantom Units 2019-03-08 2019-03-08 4 M 0 13830 D 2019-03-08 2019-03-08 Common Units 13830 0 D Phantom Units 2019-03-08 2019-03-08 4 M 0 14627 D 2019-03-08 2019-03-08 Common Units 14627 0 D Each phantom unit is the economic equivalent of one common unit of USA Compression Partners, LP. The Reporting Person settled approximately 35% of his newly vested phantom units for cash and the rest for common units. The Reporting Person is the Vice President and Chief Operating Officer of USA Compression GP, LLC, the general partner of the Issuer (the "General Partner"). The Issuer is managed by the directors and executive officers of the General Partner. /s/ William G. Manias 2019-03-12