X0306 4 2019-06-10 1 0001433270 ANTERO RESOURCES Corp AR 0001528258 Warburg Pincus Private Equity X O&G, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001451560 Warburg Pincus X Partners, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001414561 Warburg Pincus X, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001414564 Warburg Pincus X GP L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001621874 WPP GP LLC C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001621242 Warburg Pincus Partners, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001621224 Warburg Pincus Partners GP LLC C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0000929408 WARBURG PINCUS & CO. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 Common stock, par value $0.01 per share 2019-06-10 4 S 0 15594360 6.17 D 0 D Common stock, par value $0.01 per share 2019-06-10 4 S 0 499830 6.17 D 0 I See Footnote Effective June 10, 2019, WP X O&G (as defined below) sold 15,594,360 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") and WP X Partners sold 499,803 shares of Common Stock of the Issuer (collectively, the "Sale"). This Form 4 is filed on behalf of (i) Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"); and (ii) Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"). Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of WP X Partners and WP X O&G. Warburg Pincus X GP L.P., a Delaware limited partnership ("WP X GP LP"), is the general partner of WP X GP. WPP GP LLC, a Delaware limited liability company ("WPP GP"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners. Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP. Common Stock of the Issuer was held directly by WP X Partners. This Form 4 is one of two Forms 4 filed relating to the same event. The Form 4 has been split into two filings because there are more than 10 reporting persons in total, and the SEC's EDGAR filing system limits a single Form 4 to a maximum of 10 reporting persons. WARBURG PINCUS PRIVATE EQUITY X O&G, L.P. By: WP X, L.P., its general partner By: WP X GP L.P., its GP By: WPP GP LLC, its GP By: WP Partners, L.P., its MM By: WP Partners GP LLC, its GP By: WP & Co., its MM By: Name: Robert B. Knauss Title: Partner 2019-06-12 WARBURG PINCUS X PARTNERS, L.P. By: WP X, L.P., its GP By: WP X GP L.P., its GP By: WPP GP LLC, its GP By: WP Partners, L.P., its MM By: WP Partners GP LLC, its GP By: WP & Co., its MM By: Name: Robert B. Knauss Title: Partner 2019-06-12 WARBURG PINCUS X GP L.P. By: WPP GP LLC, its GP By: WP Partners, L.P., its MM By: WP Partners GP LLC, its GP By: WP & Co., its MM By: Name: Robert B. Knauss Title: Partner 2019-06-12 WARBURG PINCUS X, L.P. By: WP X GP L.P., its GP By: WPP GP LLC, its GP By: WP Partners, L.P., its MM By: WP Partners GP LLC, its GP By: WP & Co., its MM By: Name: Robert B. Knauss Title: Partner 2019-06-12 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: Name: Robert B. Knauss Title: Partner 2019-06-12 WARBURG PINCUS PARTNERS, L.P. By: Warburg Pincus Partners GP LLC, its general partner By: Warburg Pincus & Co., its managing member By: Name: Robert B. Knauss Title: Partner 2019-06-12 WARBURG PINCUS PARTNERS GP LLC By: Warburg Pincus & Co., its managing member By: Name: Robert B. Knauss Title: Partner 2019-06-12 WARBURG PINCUS & CO. By: Name: Robert B. Knauss Title: Partner 2019-06-12