X0306 4 2017-04-15 0 0001433270 ANTERO RESOURCES Corp AR 0001375364 Warren Glen C Jr 1615 WYNKOOP STREET DENVER CO 80202 1 1 0 0 See remarks Common stock, par value $0.01 per share 2017-04-15 4 F 0 18506 22.06 D 10250512 D Common stock, par value $0.01 per share 2017-04-15 4 A 0 39665 0.0000 A 10290177 D Common stock, par value $0.01 per share 7 I See footnote In connection with the vesting of shares of restricted stock units pursuant to the Antero Resources Corporation Long-Term Incentive Plan, the Issuer withheld shares that would otherwise have been issued to the Reporting Person to satisfy its tax withholding obligations. The number of shares withheld was determined based on the closing price per share on April 13, 2017. Includes 206,744 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting. Includes 3,847,251 shares of common stock held by Canton Investment Holdings LLC ("Canton"). Mr. Warren is the sole member of Canton. Mr. Warren disclaims beneficial ownership of all shares held by Canton except to the extent of his pecuniary interest therein. Common stock subject to a restricted stock unit award that vests in four equal installments on the first four anniversaries of the grant date so long as the Reporting Person remains continuously employed by the Issuer through each such anniversary date. Represents shares purchased by a family member of the Reporting Person. All shares indicated as indirectly owned by the Reporting Person are included because of his relation to the purchaser. The Reporting Person disclaims beneficial ownership of all shares reported except to the extent of his pecuniary interest therein. Director, President, Chief Financial Officer and Secretary /s/ Alvyn A. Schopp, as attorney-in-fact for Glen C. Warren, Jr. 2017-04-18