X0206 3 2022-07-11 0 0001136352 Crestwood Equity Partners LP CEQP 0001706604 First Reserve GP XIII Ltd 262 HARBOR DRIVE, THIRD FLOOR STAMFORD CT 06902 0 0 1 0 0001935823 First Reserve GP XIII, L.P. 262 HARBOR DRIVE, THIRD FLOOR STAMFORD CT 06902 0 0 1 0 0001935820 FR XIII Crestwood Permian Basin Holdings LLC 262 HARBOR DRIVE, THIRD FLOOR STAMFORD CT 06902 0 0 1 0 0001935822 FR XIII Charlie AIV, L.P. 262 HARBOR DRIVE, THIRD FLOOR STAMFORD CT 06902 0 0 1 0 Common Units 11275546 I See Footnote Represents common units representing limited partner interests of Crestwood Equity Partners LP held directly by FR XIII Crestwood Permian Basin Holdings LLC ("First Reserve XIII"). This form is filed jointly by First Reserve GP XIII Limited, First Reserve GP XIII, L.P., First Reserve XIII and FR XIII Charlie AIV, L.P.. FR XIII Charlie AIV, L.P. is the managing member of First Reserve XIII. First Reserve GP XIII, L.P. is the general partner of Charlie AIV, L.P. First Reserve GP XIII Limited is the general partner of First Reserve GP XIII, L.P. The reporting persons disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting persons are the beneficial owners of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934 or for any other purpose. FIRST RESERVE GP XIII LIMITED, By: /s/ Erica H. Radcliffe, Name: Erica H. Radcliffe, General Counsel & Chief Compliance Officer 2022-07-15 FIRST RESERVE GP XIII, L.P., By: First Reserve GP XIII Limited, its general partner, By: /s/ Erica H. Radcliffe, Name: Erica H. Radcliffe, General Counsel & Chief Compliance Officer 2022-07-15 FR XIII CRESTWOOD PERMIAN BASIN HOLDINGS LLC, By: FR XIII Charlie AIV, L.P., its man. mem., By: First Reserve GP XIII, L.P., its GP, By: First Reserve GP XIII Limited, its GP, By: /s/ Erica H. Radcliffe, Name: Erica H. Radcliffe, General Counsel & CCO 2022-07-15 FR XIII CHARLIE AIV, L.P. By: First Reserve GP XIII, L.P., its general partner, By: First Reserve GP XIII Limited, its general partner, By: /s/ Erica H. Radcliffe, Name: Erica H. Radcliffe, General Counsel & Chief Compliance Officer 2022-07-15