X0508 4 2023-08-12 0 0001136352 Crestwood Equity Partners LP CEQP 0001980072 Cathey Jeffrey M 2440 PERSHING RD., SUITE 600 KANSAS CITY MO 64108 0 1 0 0 SVP, Controller 0 Common Units 2023-08-12 4 F 0 6343 26.43 D 26847 D Includes restricted units granted under the Crestwood Equity Partners LP Long Term Incentive Plans, as amended. Mr. Cathey was appointed as a Section 16 officer on July 1, 2023. In the six months prior to his appointment, Mr. Cathey sold CEQP units as follows: 3,500 units on 2/27/2023 at $25.30, 2,500 units on 3/2/2023 at $25.50, 2,500 units on 3/6/2023 at $25.75 and 3,161 units on 3/13/2023 at $25.30. /s/ Judy Riddle, attorney-in-fact for Jeffrey M. Cathey 2023-08-15