Exhibit 99.1
Dated November 13, 2019
WARBURG PINCUS PRIVATE EQUITY X O&G, L.P.
By: Warburg Pincus X, L.P., its general partner
By: Warburg Pincus X GP L.P., its general partner
By: WPP GP LLC, its general partner
By: Warburg Pincus Partners, L.P., its managing member
By: Warburg Pincus Partners GP LLC, its general partner
By: Warburg Pincus & Co., its managing member
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS X, L.P.
By: Warburg Pincus X GP L.P., its general partner
By: WPP GP LLC, its general partner
By: Warburg Pincus Partners, L.P., its managing member
By: Warburg Pincus Partners GP LLC, its general partner
By: Warburg Pincus & Co., its managing member
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS X GP L.P.
By: WPP GP LLC, its general partner
By: Warburg Pincus Partners, L.P., its managing member
By: Warburg Pincus Partners GP LLC, its general partner
By: Warburg Pincus & Co., its managing member
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Partner
WPP GP LLC
By: Warburg Pincus Partners, L.P., its managing member
By: Warburg Pincus Partners GP LLC, its general partner
By: Warburg Pincus & Co., its managing member
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS PARTNERS, L.P.
By: Warburg Pincus Partners GP LLC, its general partner
By: Warburg Pincus & Co., its managing member
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS PARTNERS GP LLC
By: Warburg Pincus & Co., its managing member
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS & CO.
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS LLC
By: /s/ Robert B. Knauss
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Name: Robert B. Knauss
Title: Managing Director
CHARLES R. KAYE
By: /s/ Charles R. Kaye
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Name: Charles R. Kaye
Title: Robert B. Knauss, Attorney-in-Fact*
JOSEPH P. LANDY
By: /s/ Joseph P. Landy
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Name: Joseph P. Landy
Title: Robert B. Knauss, Attorney-in-Fact*
* The Power of Attorney given by each of Mr. Kaye and Mr. Landy was previously
filed with the SEC on July 12, 2016 as an exhibit to a beneficial ownership
report on Schedule 13D filed by Warburg Pincus LLC with respect to WEX Inc.
and is hereby incorporated by reference.
