Exhibit 99.1
Joint Filers' Signatures
WARBURG PINCUS PRIVATE EQUITY (E&P) XI-A
(BRIGHAM), LLC
By: Warburg Pincus Private Equity (E&P) XI-A,
L.P., its sole member
By: Warburg Pincus (E&P) XI, L.P., its general
partner
By: Warburg Pincus (E&P) XI LLC, its general
partner
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS PRIVATE EQUITY (E&P) XI-A,
L.P.
By: Warburg Pincus (E&P) XI, L.P., its general
partner
By: Warburg Pincus (E&P) XI LLC, its general
partner
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS XI (E&P) PARTNERS-A
(BRIGHAM), LLC
By: Warburg Pincus XI (E&P) Partners-A, L.P., its
sole member
By: Warburg Pincus (E&P) XI, L.P., its general
partner
By: Warburg Pincus (E&P) XI LLC, its general
partner
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS XI (E&P) PARTNERS-A, L.P.
By: Warburg Pincus (E&P) XI, L.P., its general
partner
By: Warburg Pincus (E&P) XI LLC, its general
partner
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WP BRIGHAM HOLDINGS, L.P.
By: Warburg Pincus (E&P) XI, L.P., its general
partner
By: Warburg Pincus (E&P) XI LLC, its general
partner
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
----------------------------------------------- -----------------------
Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS (E&P) XI, L.P.
By: Warburg Pincus (E&P) XI LLC, its general
partner
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS PARTNERS (E&P) XI LLC
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS (E&P) ENERGY LLC
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS (E&P) ENERGY GP, L.P.
By: Warburg Pincus (E&P) Energy LLC, its general
partner
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WP ENERGY BRIGHAM HOLDINGS, L.P.
By: Warburg Pincus (E&P) Energy GP, L.P., its
general partner
By: Warburg Pincus (E&P) Energy LLC, its general
partner
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WP ENERGY PARTNERS BRIGHAM HOLDINGS,
L.P.
By: Warburg Pincus (E&P) Energy GP, L.P., its
general partner
By: Warburg Pincus (E&P) Energy LLC, its general
partner
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS ENERGY (E&P)-A (BRIGHAM),
LLC
By: Warburg Pincus Energy (E&P)-A, L.P., its
managing member
By: Warburg Pincus (E&P) Energy GP, L.P., its
general partner
By: Warburg Pincus (E&P) Energy LLC, its general
partner
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
----------------------------------------------- -----------------------
Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS ENERGY (E&P)-A, L.P.
By: Warburg Pincus (E&P) Energy GP, L.P., its general
partner
By: Warburg Pincus (E&P) Energy LLC, its general
partner
By: Warburg Pincus Partners II (US), L.P., its managing
member
By: Warburg Pincus & Company US, LLC, its general
partner
By: /s/ Robert B. Knauss Date: 6/16/2020
----------------------------------------------- -----------------------
Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS ENERGY (E&P) PARTNERS-A
(BRIGHAM), LLC
By: Warburg Pincus Energy (E&P) Partners-A, L.P., its
managing member
By: Warburg Pincus (E&P) Energy GP, L.P., its general
partner
By: Warburg Pincus (E&P) Energy LLC, its general
partner
By: Warburg Pincus Partners II (US), L.P., its managing
member
By: Warburg Pincus & Company US, LLC, its general
partner
By: /s/ Robert B. Knauss Date: 6/16/2020
----------------------------------------------- -----------------------
Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS ENERGY (E&P) PARTNERS-A, L.P.
By: Warburg Pincus (E&P) Energy GP, L.P., its general
partner
By: Warburg Pincus (E&P) Energy LLC, its general
partner
By: Warburg Pincus Partners II (US), L.P., its managing
member
By: Warburg Pincus & Company US, LLC, its general
partner
By: /s/ Robert B. Knauss Date: 6/16/2020
----------------------------------------------- -----------------------
Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS (E&P) XI LLC
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its managing
member
By: Warburg Pincus & Company US, LLC, its general
partner
By: /s/ Robert B. Knauss Date: 6/16/2020
----------------------------------------------- -----------------------
Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS & COMPANY US, LLC
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
BRIGHAM PARENT HOLDINGS, L.P.
By: Warburg Pincus (E&P) XI, L.P., its general
partner
By: Warburg Pincus (E&P) XI LLC, its general
partner
By: Warburg Pincus Partners (E&P) XI LLC, its sole
member
By: Warburg Pincus Partners II (US), L.P., its
managing member
By: Warburg Pincus & Company US, LLC, its
general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS PARTNERS II (US), L.P.
By: Warburg Pincus & Company US, LLC,
its general partner
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Authorized Signatory
WARBURG PINCUS LLC
By: /s/ Robert B. Knauss Date: 6/16/2020
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Name: Robert B. Knauss
Title: Managing Director
