X0306 4 2015-05-07 0 0001433270 ANTERO RESOURCES Corp AR 0001414565 Warburg Pincus Private Equity X, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001451560 Warburg Pincus X Partners, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001528258 Warburg Pincus Private Equity X O&G, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001414561 Warburg Pincus X, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001414564 Warburg Pincus X GP L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001621224 Warburg Pincus Partners GP 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 X 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 X, L.P., a Delaware limited partnership ("WP X"), Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners," and together with WP X, the "WP X Funds"), and Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"), hold a beneficial interest in WP Antero, LLC, a Delaware limited liability company ("WP Antero"), an indirect subsidiary of WP X and WP X O&G, and a direct subsidiary of WP X Partners and a member in Antero Resources Investment, LLC. Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of WP X Funds 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 LLC") is the general partner of WP X 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. WP LLC is the manager of the WP X Funds, and WP X O&G. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP X Funds, and WP X O&G. 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 X Funds, WP X O&G, WP X GP, WP X 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 Antero, LLC and WPP GP LLC are included as a Reporting Person on the Form 4 filed by Warburg Pincus Private Equity VIII, 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. WP X By: WP X, its general partner (''GP'') By: WP X GP L.P., its GP By: WPP GP LLC, its GP By: WP Partners, its managing member (''MM'') By: WP Partners GP, its GP By: WP, its MM By: /s/ Steven G. Glenn (SG) Name: SG Title: Partner 2015-05-07 WP X PARTNERS By: WP X GP., its GP By: WP X GP LP, its GP By: WPP GP LLC, its GP By: WP Partners, its MM By: WP Partners GP, its GP By: WP, its MM By: /s/ Steven G. Glenn (SG) Name: SG Title: Partner 2015-05-07 WP X O&G By: WP X GP, its GP By: WP X GP L.P., its GP By: WPP GP LLC, its GP By: WP Partners, its MM By: WP Partners GP, its GP By: WP, its MM By: /s/ Steven G. Glenn (SG) Name: SG Title: Partner 2015-05-07 WP X GP By: Warburg Pincus X GP L.P., its GP By: WPP GP LLC, its GP By: WP Partners, its MM By: WP Partners GP, its GP By: Warburg Pincus & Co., its MM By: /s/ Steven G. Glenn (SG) Name: SG Title: Partner 2015-05-07 WARBURG PINCUS X GP L.P. By: WPP GP LLC, its general partner By: WP Partners., its managing member By: WP Partners, 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 PARTNERS GP LLC 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: /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