BCP Raptor Aggregator L.P.

SEC source: 0000950170-24-117874 · ownership.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 534,789

Underlying: Class A Common Stock · 78 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On October 24, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000950170-24-117874 · ownership.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 3,311,346

Underlying: Class A Common Stock · 481 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On October 24, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000950170-24-117874 · ownership.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,658,066

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On October 24, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000950170-24-117874 · ownership.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 10,256,208

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On October 24, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000950170-24-049917 · ownership.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 534,867

Underlying: Class A Common Stock · 78 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On April 25, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000950170-24-049917 · ownership.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 3,311,827

Underlying: Class A Common Stock · 481 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On April 25, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000950170-24-049917 · ownership.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,657,988

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On April 25, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · balance_after: Includes an additional 400,204 shares acquired by BX Permian Pipeline Aggregator LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000950170-24-049917 · ownership.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 10,255,727

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On April 25, 2024, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Includes an additional 2,475,508 shares acquired by BCP Raptor Aggregator, LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-020333 · doc4.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 534,945

Underlying: Class A Common Stock · 78 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On November 8, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-020333 · doc4.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 3,312,308

Underlying: Class A Common Stock · 481 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On November 8, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-020333 · doc4.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,257,706

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On November 8, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · balance_after: Includes an additional 197,533 shares acquired by BX Permian Pipeline Aggregator LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-020333 · doc4.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · Former 10% Owner

Blackstone EMA II L.L.C. · CIK 0001700375 · Former 10% Owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 7,779,738

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On November 8, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Includes an additional 1,221,868 shares acquired by BCP Raptor Aggregator, LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-017733 · doc4.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 535,023

Underlying: Class A Common Stock · 442 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On July 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-017733 · doc4.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 3,312,789

Underlying: Class A Common Stock · 2,738 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On July 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-017733 · doc4.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,060,094

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On July 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · balance_after: Includes an additional 235,208 shares acquired by BX Permian Pipeline Aggregator LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-017733 · doc4.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,557,389

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On July 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Includes an additional 1,454,910 shares acquired by BCP Raptor Aggregator, LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-012323 · doc4.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 535,465

Underlying: Class A Common Stock · 1,696 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On May 3, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-012323 · doc4.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 3,315,527

Underlying: Class A Common Stock · 10,498 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On May 3, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-012323 · doc4.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 824,445

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On May 3, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · balance_after: Includes an additional 238,937 shares acquired by BX Permian Pipeline Aggregator LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-012323 · doc4.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 5,099,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On May 3, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Includes an additional 1,477,974 shares acquired by BCP Raptor Aggregator, LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-003494 · doc4.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 537,161

Underlying: Class A Common Stock · 554 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On January 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-003494 · doc4.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,326,025

Underlying: Class A Common Stock · 3,433 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On January 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-003494 · doc4.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 583,812

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On January 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · balance_after: Includes an additional 202,388 shares acquired by BX Permian Pipeline Aggregator LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-23-003494 · doc4.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · Former 10% Owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · Former 10% Owner

BMA VII L.L.C. · CIK 0001700374 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,611,272

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On January 31, 2023, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Includes an additional 1,251,897 shares acquired by BCP Raptor Aggregator, LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-035119 · doc4.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 537,715

Underlying: Class A Common Stock · 131 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On November 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-035119 · doc4.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,329,458

Underlying: Class A Common Stock · 813 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On November 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-035119 · doc4.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 380,870

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On November 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · balance_after: Includes an additional 183,359 shares acquired by BX Permian Pipeline Aggregator LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F6 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-035119 · doc4.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,355,942

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On November 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Includes an additional 1,134,190 shares acquired by BCP Raptor Aggregator, LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F5 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F7 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F8 · ownership.nature: (continued from footnote 7) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F9 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F10 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F11 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-027864 · doc4.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 537,846

Underlying: Class A Common Stock · 854 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On August 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F13 · balance_after: Total number of Consideration Allocation Rights has been adjusted to reflect the two-for-one stock split the Company effected on June 8, 2022 with respect to its Class A Common Stock and Class C Common Stock. The stock split was accomplished by distributing one additional share of Class A Common Stock for each share of Class A Common Stock outstanding and one additional share of Class C Common Stock for each share of Class C Common Stock outstanding.

F7 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F8 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F9 · ownership.nature: (continued from footnote 8) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F10 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F11 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F12 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-027864 · doc4.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,330,271

Underlying: Class A Common Stock · 5,289 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On August 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F13 · balance_after: Total number of Consideration Allocation Rights has been adjusted to reflect the two-for-one stock split the Company effected on June 8, 2022 with respect to its Class A Common Stock and Class C Common Stock. The stock split was accomplished by distributing one additional share of Class A Common Stock for each share of Class A Common Stock outstanding and one additional share of Class C Common Stock for each share of Class C Common Stock outstanding.

F6 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F8 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F9 · ownership.nature: (continued from footnote 8) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F10 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F11 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F12 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-027864 · doc4.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 197,380

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On August 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Total number of shares of Class A Common Stock has been adjusted to reflect the two-for-one stock split the Company effected on June 8, 2022 with respect to its Class A Common Stock and Class C Common Stock. The stock split was accomplished by distributing one additional share of Class A Common Stock for each share of Class A Common Stock outstanding and one additional share of Class C Common Stock for each share of Class C Common Stock outstanding.

F5 · balance_after: Includes an additional 195,356 shares (as adjusted to reflect the two-for-one stock split) acquired by BX Permian Pipeline Aggregator LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F7 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F8 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F9 · ownership.nature: (continued from footnote 8) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F10 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F11 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F12 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-027864 · doc4.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,220,939

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On August 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · balance_after: Total number of shares of Class A Common Stock has been adjusted to reflect the two-for-one stock split the Company effected on June 8, 2022 with respect to its Class A Common Stock and Class C Common Stock. The stock split was accomplished by distributing one additional share of Class A Common Stock for each share of Class A Common Stock outstanding and one additional share of Class C Common Stock for each share of Class C Common Stock outstanding.

F4 · balance_after: Includes an additional 1,208,402 shares (as adjusted to reflect the two-for-one stock split) acquired by BCP Raptor Aggregator, LP since the date of the Reporting Persons' last Form 4 pursuant to the Company's Dividend and Distribution Reinvestment Plan, which acquisitions were exempt from Section 16 pursuant to Rule 16a-11 under the Securities Exchange Act of 1934, as amended.

F6 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F8 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F9 · ownership.nature: (continued from footnote 8) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F10 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F11 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F12 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-016923 · doc4.xml · derivative · entry 4

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 269,350

Underlying: Class A Common Stock · 585 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On May 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F11 · balance_after: Total number of Consideration Allocation Rights has been adjusted to reflect the inadvertent understatement of 18,534 Consideration Allocation Rights in the Reporting Persons' Form 3.

F4 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 5) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-016923 · doc4.xml · derivative · entry 3

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,667,780

Underlying: Class A Common Stock · 3,624 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.exercise_price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F2 · kind: On May 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · derivative.exercise_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F1 · derivative.expiration_date: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F10 · balance_after: Total number of Consideration Allocation Rights has been adjusted to reflect the inadvertent understatement of 115,683 Consideration Allocation Rights in the Reporting Persons' Form 3.

F3 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 5) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-016923 · doc4.xml · nonDerivative · entry 2

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 585

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On May 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F4 · ownership.nature: These securities are owned directly by BX Permian Pipeline Aggregator LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 5) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-016923 · doc4.xml · nonDerivative · entry 1

BCP Raptor Aggregator L.P. · CIK 0001891960 · 10% owner

BX Permian Pipeline Aggregator LP · CIK 0001913508 · 10% owner

BCP VII/BEP II Holdings Manager L.L.C. · CIK 0001886209 · 10% owner

Blackstone Energy Management Associates II L.L.C. · CIK 0001700376 · 10% owner

Blackstone EMA II L.L.C. · CIK 0001700375 · 10% owner

Blackstone Management Associates VII L.L.C. · CIK 0001700377 · 10% owner

BMA VII L.L.C. · CIK 0001700374 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,624

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On May 3, 2022, certain Reporting Persons received shares of Class A Common Stock in settlement of Consideration Allocation Rights pursuant to the Allocation Agreement.

F1 · price: Consideration Allocation Rights refer to the right of a holder thereof to receive on February 25, 2025 and February 25, 2026, or an earlier settlement date as described in the Consideration Allocation Agreement (the "Allocation Agreement"), dated as of February 22, 2022, by and among the Issuer and certain stockholders, on a one-for-one basis, additional shares of Class A Common Stock originally issued as consideration in connection with the transactions under the Contribution Agreement (the "Contribution Agreement"), dated October 21, 2021, by and among the Issuer, Kinetik Holdings LP, BCP Raptor Holdco, LP and New BCP Raptor Holdco, LLC, to the extent such shares of Class A Common Stock originally issued as consideration are forfeited by the original holders. Class A Common Stock or any other class or series of capital stock of the Issuer will be issued pursuant to Consideration Allocation Rights solely to the extent a corresponding forfeiture of specified shares has occurred.

F3 · ownership.nature: These securities are owned directly by BCP Raptor Aggregator, LP.

F5 · ownership.nature: BCP VII/BEP II Holdings Manager L.L.C. is the general partner of each of BCP Raptor Aggregator, LP and BX Permian Pipeline Aggregator LP. Blackstone Energy Management Associates II L.L.C. and Blackstone Management Associates VII L.L.C. are the managing members of BCP VII/BEP II Holdings Manager L.L.C. Blackstone EMA II L.L.C. is the sole member of Blackstone Energy Management Associates II L.L.C. BMA VII L.L.C. is the sole member of Blackstone Management Associates VII L.L.C. Blackstone Holdings III L.P. is the managing member of each of BMA VII L.L.C. and Blackstone EMA II L.L.C. Blackstone Holdings GP III L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C.

F6 · ownership.nature: (continued from footnote 5) The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone Inc.'s senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.