X0306 4 2015-05-07 0 0001433270 ANTERO RESOURCES Corp AR 0001157334 Warburg Pincus Private Equity VIII, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001621874 WPP GP LLC C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001588064 WP Antero, LLC C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001162870 WARBURG PINCUS LLC C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0000929408 WARBURG PINCUS & CO. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001239318 KAYE CHARLES R C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001220638 Landy Joseph P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 Common stock, par value $0.01 per share 2015-05-07 4 D 0 3602779 0.0000 D 200165909 I See footnotes On May 7, 2015, the WP VIII Funds (as defined below in footnote 2), distributed an aggregate of 3,602,779 shares of common stock of Antero Resources Corporation ("Common Stock") to their partners on a pro rata basis, with no consideration being paid in connection therewith. Each of Warburg Pincus Private Equity VIII, L.P., a Delaware limited partnership, ("WP VIII", and together with its two affiliated partnerships, Warburg Pincus Netherlands Private Equity VIII C.V. I, a company formed under the laws of the Netherlands ("WP VIII CV I"), and WP-WPVIII Investors, L.P., a Delaware limited partnership, ("WP-WPVIII Investors"), collectively, the "WP VIII Funds"), hold a beneficial interest in WP Antero, LLC, a Delaware limited liability company ("WP Antero"), a direct subsidiary of the WP VIII Funds and a member in Antero Resources Investment, LLC. WP-WPVIII Investors GP L.P., a Delaware limited partnership ("WP-WPVIII GP LP"), is the general partner of WP-WPVIII Investors. WPP GP LLC, a Delaware limited liability company ("WPP GP LLC") is the general partner of WP-WPVIII GP LP. WP is the managing member of Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), which is the general partner of Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), which is the managing member of WPP GP LLC and the general partner of WP VIII and WP VIII CV I. WP LLC is the manager of the WP VIII Funds. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP VIII Funds. Warburg Pincus & Co., a New York general partnership ("WP"), is a member and managing director of WP LLC. Charles R. Kaye and Joseph P. Landy are each a Managing General Partner of WP and a Managing Member and Co-President of WP LLC and may be deemed to control the Warburg Pincus Entities. Each of Messrs. Kaye and Landy, together with the WP VIII Funds, WP-WPVIII GP LP, WPP GP LLC, WP Antero, WP Partners, WP Partners GP, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities." Due to the limitation on the number of Reporting Persons allowed on Form 4, WP Partners GP included as a Reporting Person on the Form 4 filed by Warburg Pincus Private Equity X, L.P. * The Power of Attorney given by each of Warburg Pincus & Co., Mr. Kaye and Mr. Landy was previously filed with the U.S. Securities & Exchange Commission on November 26, 2013 as an exhibit to a statement on Form 4 filed by Warburg Pincus Private Equity IX, L.P. with respect to Laredo Petroleum Holdings, Inc. (now known as Laredo Petroleum, Inc.) and is hereby incorporated by reference. WARBURG PINCUS PRIVATE EQUITY VIII, L.P. By: Warburg Pincus Partners, L.P., its general partner By: Warburg Pincus Partners GP LLC, its general partner By: Warburg Pincus & Co., its managing member By: /s/ Steven G. Glenn Name: Steven G. Glenn 2015-05-07 WP ANTERO, LLC By: WP Antero Holdco, LLC, its managing member By: WP Antero Topco, Inc. its managing member By: /s/ Steven G. Glenn Name: Steven G. Glenn Title: Director 2015-05-07 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/ Steven G. Glenn Name: Steven G. Glenn Title: Partner 2015-05-07 WARBURG PINCUS & CO. By: /s/ Steven G. Glenn Name: Steven G. Glenn Title: Partner 2015-05-07 WARBURG PINCUS LLC By: Warburg Pincus & Co., its managing member By: /s/ Steven G. Glenn Name: Steven G. Glenn Title: Managing Director 2015-05-07 CHARLES R. KAYE By: /s/ Steven G. Glenn, Attorney-in-Fact* 2015-05-07 JOSEPH P. LANDY By: /s/ Steven G. Glenn, Attorney-in-Fact* 2015-05-07