X0306 4 2016-01-11 0 0001433270 ANTERO RESOURCES Corp AR 0001370287 Keenan W Howard JR C/O YORKTOWN PARTNERS LLC 410 PARK AVENUE, 19TH FLOOR NEW YORK NY 10022 1 0 0 0 Common stock, par value $0.01 per share 2016-01-11 4 A 0 1842 0.0000 A 5186 D Common stock, par value $0.01 per share 3062315 I See footnote Common stock, par value $0.01 per share 3075420 I See footnote Common stock, par value $0.01 per share 7697717 I See footnote Common stock, par value $0.01 per share 11031999 I See footnote The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose. On November 23, 2015, Antero Resources Investment LLC ("Antero Investment") distributed these securities to Yorktown Energy Partners V, L.P. ("Yorktown V"), Yorktown Energy Partners VI, L.P. ("Yorktown VI"), Yorktown Energy Partners VII, L.P. ("Yorktown VII") and Yorktown Energy Partners VIII, L.P. ("Yorktown VIII") pursuant to a pro rata, in-kind distribution in accordance with the Amended and Restated Limited Liability Company Agreement of Antero Investment. These securities are owned directly by Yorktown V. The reporting person is a member and a manager of Yorktown V Company LLC, the general partner of Yorktown V. These securities are owned directly by Yorktown VI. The reporting person is a member and a manager of Yorktown VI Associates LLC, the general partner of Yorktown VI Company LP, the general partner of Yorktown VI. These securities are owned directly by Yorktown VII. The reporting person is a member and a manager of Yorktown VII Associates LLC, the general partner of Yorktown VII Company LP, the general partner of Yorktown VII. These securities are owned directly by Yorktown VIII. The reporting person is a member and a manager of Yorktown VIII Associates LLC, the general partner of Yorktown VIII Company LP, the general partner of Yorktown VIII. /s/ Alvyn A. Schopp, as attorney-in-fact for W. Howard Keenan, Jr. 2016-01-13