EX-99.1 2 d519181dex991.htm EX-99.1 EX-99.1

Exhibit 99.1

JOINT FILING AGREEMENT

Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, the undersigned hereby agree to the joint filing on behalf of each of them of any filing required by such party under Section 13 of the Exchange Act or any rule or regulation thereunder (including any amendment, restatement, supplement, and/or exhibit thereto) with respect to securities of Patterson-UTI Energy, Inc., a Delaware corporation, and further agree to the filing, furnishing, and/or incorporation by reference of this Joint Filing Agreement (this “Agreement”) as an exhibit thereto. Each of them is responsible for the timely filing of such filings and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate. This Agreement shall remain in full force and effect until revoked by any party hereto in a signed writing provided to each other party hereto, and then only with respect to such revoking party. This Agreement may be executed in any number of counterparts all of which taken together shall constitute one and the same instrument.

Dated: August 17, 2023


BEP Diamond Topco L.P.
By: BEP Diamond Topco LLC, its general partner
By:   /s/ Darius Sepassi
Name:   Darius Sepassi
Title:   Vice President
BEP Diamond Topco LLC
By:   /s/ Darius Sepassi
Name:   Darius Sepassi
Title:   Vice President
BEP Diamond Aggregator L.P.
By: BCP VII/BEP II Holdings Manager
L.L.C., its general partner
By:   /s/ Omar Rehman
Name:   Omar Rehman
Title:   Chief Compliance Officer and Secretary
BCP VII/BEP II Holdings Manager L.L.C.
By:   /s/ Omar Rehman
Name:   Omar Rehman
Title:  

Chief Compliance Officer and Secretary

Blackstone Energy Management Associates II L.L.C.
By: Blackstone EMA II L.L.C., its sole member
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Authorized Signatory


Blackstone Management Associates VII L.L.C.
By: BMA VII L.L.C., its sole member
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Authorized Signatory
BMA VII L.L.C.
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Authorized Signatory
Blackstone EMA II L.L.C.
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Authorized Signatory
Blackstone Holdings III L.P.
By: Blackstone Holdings III GP L.P., its general partner
By: Blackstone Holdings III GP Management L.L.C., its general partner
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Senior Managing Director


Blackstone Holdings III GP L.P.
By: Blackstone Holdings III GP Management
L.L.C., its general partner
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Senior Managing Director
Blackstone Holdings III GP Management L.L.C.
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Senior Managing Director
Blackstone Inc.
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Senior Managing Director
Blackstone Group Management L.L.C.
By:   /s/ Tabea Hsi
Name:   Tabea Hsi
Title:   Senior Managing Director
Stephen A. Schwarzman
/s/ Stephen A. Schwarzman