X0306 4 2019-12-30 0 0001433270 ANTERO RESOURCES Corp AR 0001477679 Kennedy Michael N. 1615 WYNKOOP STREET DENVER CO 80202 0 1 0 0 See Remarks Common stock, par value $0.01 per share 2019-12-30 4 S 0 138098 2.7736 D 14324 D This transaction was undertaken by the Reporting Person for tax planning purposes. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 8, 2019. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.685 to $2.855, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Includes 14,324 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting. Senior Vice President - Finance /s/ Alvyn A. Schopp, as attorney-in-fact for Michael N. Kennedy 2019-12-31