AR

SEC source: 0001104659-19-010925 · a4.xml · nonDerivative · entry 2

Levy James R. · CIK 0001535563 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 16,094,188

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,873 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,873 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · balance_after: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,873 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F2 · balance_after: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). Following the Distribution, the Warburg Pincus Entities (as defined below), collectively own 16,094,188 shares of Common Stock of the Issuer.

F3 · balance_after: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities, due to which Mr. Levy may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Levy disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F2 · ownership.nature: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). Following the Distribution, the Warburg Pincus Entities (as defined below), collectively own 16,094,188 shares of Common Stock of the Issuer.

F3 · ownership.nature: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities, due to which Mr. Levy may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Levy disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F4 · ownership.nature: The Warburg Pincus funds are Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"), and Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"). Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of each of WP X Partners and WP X O&G.

F5 · ownership.nature: 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"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners. WP is the managing member of WP Partners GP. WP LLC is the manager of each of WP X Partners and WP X O&G.

F6 · ownership.nature: Each of WP X Partners, WP X O&G, WP X GP, WP X GP LP, WPP GP, WP Partners, WP Partners GP, WP and WP LLC are collectively referred to herein as the "Warburg Pincus Entities."

SEC source: 0001104659-19-010925 · a4.xml · nonDerivative · entry 1

Levy James R. · CIK 0001535563 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,183

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,873 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,873 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · balance_after: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,873 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F7 · balance_after: In connection with the Distribution, an aggregate total of 603 shares of Common Stock of the Issuer were distributed to Mr. Levy in his personal capacity.

SEC source: 0001104659-19-012155 · a4a.xml · nonDerivative · entry 2

Warburg Pincus Private Equity X O&G, L.P. · CIK 0001528258 · Director

Warburg Pincus X Partners, L.P. · CIK 0001451560 · Director

Warburg Pincus X, L.P. · CIK 0001414561 · Director

Warburg Pincus X GP L.P. · CIK 0001414564 · Director

WPP GP LLC · CIK 0001621874 · Director

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director

WARBURG PINCUS & CO. · CIK 0000929408 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 499,830

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F2 · balance_after: This Form 4 is filed on behalf of (i) Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"); and (ii) Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G").

F3 · balance_after: Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of WP X Partners 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"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners.

F4 · balance_after: Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP.

F5 · balance_after: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Warburg Pincus Reporting Persons and certain affiliates may be deemed to be beneficial owners of 499,830 shares of Common Stock of the Issuer held by WP X Partners and 15,594,360 shares of Common Stock of the Issuer held by WP X O&G. The Warburg Pincus Reporting Persons and such affiliates disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. WP Partners, WP Partners GP, and WP are directors-by-deputization solely for purposes of Section 16 of the Exchange Act. Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F7 · balance_after: The original Form 4 filed on February 27, 2019 is amended by this Form 4 solely to correct an administrative error which misreported the distribution by WP X O&G that occurred on February 26, 2019 as a distribution of 17,514,873 shares of Common Stock when in fact 17,514,871 shares of Common Stock were distributed.

F6 · ownership.nature: Common Stock of the Issuer is held directly by WP X Partners.

SEC source: 0001104659-19-012155 · a4a.xml · nonDerivative · entry 1

Warburg Pincus Private Equity X O&G, L.P. · CIK 0001528258 · Director

Warburg Pincus X Partners, L.P. · CIK 0001451560 · Director

Warburg Pincus X, L.P. · CIK 0001414561 · Director

Warburg Pincus X GP L.P. · CIK 0001414564 · Director

WPP GP LLC · CIK 0001621874 · Director

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director

WARBURG PINCUS & CO. · CIK 0000929408 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,594,360

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F2 · balance_after: This Form 4 is filed on behalf of (i) Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"); and (ii) Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G").

F3 · balance_after: Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of WP X Partners 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"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners.

F4 · balance_after: Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP.

F5 · balance_after: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Warburg Pincus Reporting Persons and certain affiliates may be deemed to be beneficial owners of 499,830 shares of Common Stock of the Issuer held by WP X Partners and 15,594,360 shares of Common Stock of the Issuer held by WP X O&G. The Warburg Pincus Reporting Persons and such affiliates disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. WP Partners, WP Partners GP, and WP are directors-by-deputization solely for purposes of Section 16 of the Exchange Act. Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F7 · balance_after: The original Form 4 filed on February 27, 2019 is amended by this Form 4 solely to correct an administrative error which misreported the distribution by WP X O&G that occurred on February 26, 2019 as a distribution of 17,514,873 shares of Common Stock when in fact 17,514,871 shares of Common Stock were distributed.

SEC source: 0001104659-19-012156 · a4a.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director

KAYE CHARLES R · CIK 0001239318 · Director

Landy Joseph P. · CIK 0001220638 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 16,094,190

F1 · kind: Effective February 26, 2019, February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · balance_after: Effective February 26, 2019, February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F2 · balance_after: This Form 4 is filed on behalf of Warburg Pincus LLC, a New York limited liability company ("WP LLC") and Charles R. Kaye and Joseph P. Landy, each a Managing General Partner of Warburg Pincus & Co., a New York general partnership ("WP") and the Co-Chief Executive Officers and Managing Members of WP LLC (WP LLC, together with Messrs. Kaye and Landy, the "Warburg Pincus Reporting Persons").

F3 · balance_after: Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"), was an existing shareholder of the Company prior to the sale by WP X O&G as reported on a separate Form 4 (the "WP X O&G Sale") and currently holds 15,594,360 shares of common stock, par value $0.01 per share ("Common Stock") of Antero Resources Corporation (the "Issuer"). Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"), was an existing shareholder of the Company prior to the sale by WP X Partners as reported on a Separate Form 4 (the "WP X Partners Sale" and, together with the WP X O&G Sale, the "Sale") and currently owns 499,830 shares of Common Stock. WP LLC manages each of WP X O&G and WP X Partners (collectively, the "WP Funds") and WP is the ultimate general partner of the WP Funds. Therefore, the consummation of the Sale altered the indirect beneficial ownership of the Reporting Persons in the shares of Common Stock.

F4 · balance_after: Charles R. Kaye and Joseph P. Landy are each Managing General Partners of WP and Managing Members and Co-Chief Executive Officers of WP LLC and may be deemed to control the Warburg Pincus Reporting Persons. Messrs. Kaye and Landy disclaim beneficial ownership of all shares held by the Warburg Pincus Reporting Persons.

F5 · balance_after: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Warburg Pincus Reporting Persons and certain affiliates may be deemed to be beneficial owners of 16,094,190 shares of Common Stock of the Issuer held collectively by the WP Funds. The Warburg Pincus Reporting Persons and such affiliates disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein.

F6 · balance_after: Each of Charles R. Kaye and Joseph P. Landy serves as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC. Therefore, the consummation of the sale by WP X Partners and WP X O&G reported hereunder altered the indirect beneficial ownership of the Reporting Persons in the shares of Common Stock. In addition to the 16,094,190 shares of Common Stock in which Charles R. Kaye may be deemed to have indirect beneficial ownership by virtue of his status as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC, Mr. Kaye currently owns, directly and indirectly, 121,270 shares of Common Stock. In addition to the 16,094,190 shares of Common Stock in which Joseph P. Landy may be deemed to have indirect beneficial ownership by virtue of his status as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC, Mr. Landy currently owns 565,799 shares of Common Stock.

F7 · balance_after: The original Form 4 filed on February 27, 2019 is amended by this Form 4 solely to correct an administrative error which misreported the distribution by WP X O&G that occurred on February 26, 2019 as a distribution of 17,514,873 shares of Common Stock when in fact 17,514,871 shares of Common Stock were distributed.

F1 · ownership.nature: Effective February 26, 2019, February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate total of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F2 · ownership.nature: This Form 4 is filed on behalf of Warburg Pincus LLC, a New York limited liability company ("WP LLC") and Charles R. Kaye and Joseph P. Landy, each a Managing General Partner of Warburg Pincus & Co., a New York general partnership ("WP") and the Co-Chief Executive Officers and Managing Members of WP LLC (WP LLC, together with Messrs. Kaye and Landy, the "Warburg Pincus Reporting Persons").

F3 · ownership.nature: Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"), was an existing shareholder of the Company prior to the sale by WP X O&G as reported on a separate Form 4 (the "WP X O&G Sale") and currently holds 15,594,360 shares of common stock, par value $0.01 per share ("Common Stock") of Antero Resources Corporation (the "Issuer"). Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"), was an existing shareholder of the Company prior to the sale by WP X Partners as reported on a Separate Form 4 (the "WP X Partners Sale" and, together with the WP X O&G Sale, the "Sale") and currently owns 499,830 shares of Common Stock. WP LLC manages each of WP X O&G and WP X Partners (collectively, the "WP Funds") and WP is the ultimate general partner of the WP Funds. Therefore, the consummation of the Sale altered the indirect beneficial ownership of the Reporting Persons in the shares of Common Stock.

F4 · ownership.nature: Charles R. Kaye and Joseph P. Landy are each Managing General Partners of WP and Managing Members and Co-Chief Executive Officers of WP LLC and may be deemed to control the Warburg Pincus Reporting Persons. Messrs. Kaye and Landy disclaim beneficial ownership of all shares held by the Warburg Pincus Reporting Persons.

F5 · ownership.nature: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Warburg Pincus Reporting Persons and certain affiliates may be deemed to be beneficial owners of 16,094,190 shares of Common Stock of the Issuer held collectively by the WP Funds. The Warburg Pincus Reporting Persons and such affiliates disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein.

F6 · ownership.nature: Each of Charles R. Kaye and Joseph P. Landy serves as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC. Therefore, the consummation of the sale by WP X Partners and WP X O&G reported hereunder altered the indirect beneficial ownership of the Reporting Persons in the shares of Common Stock. In addition to the 16,094,190 shares of Common Stock in which Charles R. Kaye may be deemed to have indirect beneficial ownership by virtue of his status as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC, Mr. Kaye currently owns, directly and indirectly, 121,270 shares of Common Stock. In addition to the 16,094,190 shares of Common Stock in which Joseph P. Landy may be deemed to have indirect beneficial ownership by virtue of his status as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC, Mr. Landy currently owns 565,799 shares of Common Stock.

F7 · ownership.nature: The original Form 4 filed on February 27, 2019 is amended by this Form 4 solely to correct an administrative error which misreported the distribution by WP X O&G that occurred on February 26, 2019 as a distribution of 17,514,873 shares of Common Stock when in fact 17,514,871 shares of Common Stock were distributed.

SEC source: 0001104659-19-012158 · a4a.xml · nonDerivative · entry 2

KAGAN PETER · CIK 0001239315 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 16,094,190

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · balance_after: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F2 · balance_after: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). Following the Distribution, the Warburg Pincus Entities (as defined below), collectively own 16,094,190 shares of Common Stock of the Issuer.

F3 · balance_after: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities, due to which Mr. Kagan may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Kagan disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F2 · ownership.nature: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). Following the Distribution, the Warburg Pincus Entities (as defined below), collectively own 16,094,190 shares of Common Stock of the Issuer.

F3 · ownership.nature: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities, due to which Mr. Kagan may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Kagan disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F4 · ownership.nature: The Warburg Pincus funds are Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"), and Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"). Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of each of WP X Partners and WP X O&G.

F5 · ownership.nature: 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"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners. WP is the managing member of WP Partners GP. WP LLC is the manager of each of WP X Partners and WP X O&G.

F6 · ownership.nature: Each of WP X Partners, WP X O&G, WP X GP, WP X GP LP, WPP GP, WP Partners, WP Partners GP, WP and WP LLC are collectively referred to herein as the "Warburg Pincus Entities."

SEC source: 0001104659-19-012158 · a4a.xml · nonDerivative · entry 1

KAGAN PETER · CIK 0001239315 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 363,674

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · balance_after: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F7 · balance_after: In connection with the Distribution, an aggregate total of 7,236 shares of Common Stock of the Issuer were distributed to Mr. Kagan in his personal capacity.

F8 · balance_after: The original Form 4 filed on February 27, 2019 is amended by this Form 4 solely to correct an administrative error which misreported the distribution by WP X O&G that occurred on February 26, 2019 as a distribution of 17,514,873 shares of Common Stock when in fact 17,514,871 shares of Common Stock were distributed.

SEC source: 0001104659-19-012157 · a4a.xml · nonDerivative · entry 2

Levy James R. · CIK 0001535563 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 16,094,190

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · balance_after: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F2 · balance_after: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). Following the Distribution, the Warburg Pincus Entities (as defined below), collectively own 16,094,190 shares of Common Stock of the Issuer.

F3 · balance_after: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities, due to which Mr. Levy may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Levy disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F2 · ownership.nature: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). Following the Distribution, the Warburg Pincus Entities (as defined below), collectively own 16,094,190 shares of Common Stock of the Issuer.

F3 · ownership.nature: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities, due to which Mr. Levy may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Levy disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F4 · ownership.nature: The Warburg Pincus funds are Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"), and Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"). Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of each of WP X Partners and WP X O&G.

F5 · ownership.nature: 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"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners. WP is the managing member of WP Partners GP. WP LLC is the manager of each of WP X Partners and WP X O&G.

F6 · ownership.nature: Each of WP X Partners, WP X O&G, WP X GP, WP X GP LP, WPP GP, WP Partners, WP Partners GP, WP and WP LLC are collectively referred to herein as the "Warburg Pincus Entities."

SEC source: 0001104659-19-012157 · a4a.xml · nonDerivative · entry 1

Levy James R. · CIK 0001535563 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,183

F1 · kind: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · price: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F1 · balance_after: Effective February 26, 2019, WP X Partners (as defined below) and WP X O&G (as defined below) distributed an aggregate of 17,514,871 shares of common stock, par value $0.01 per share ("Common Stock"), of Antero Resources Corporation (the "Issuer") to their partners on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities (the "Distribution"), with no consideration being paid in connection therewith.

F7 · balance_after: In connection with the Distribution, an aggregate total of 603 shares of Common Stock of the Issuer were distributed to Mr. Levy in his personal capacity.

F8 · balance_after: The original Form 4 filed on February 27, 2019 is amended by this Form 4 solely to correct an administrative error which misreported the distribution by WP X O&G that occurred on February 26, 2019 as a distribution of 17,514,873 shares of Common Stock when in fact 17,514,871 shares of Common Stock were distributed.

SEC source: 0001104659-19-014648 · a4.xml · nonDerivative · entry 1

Warren Glen C Jr · CIK 0001375364 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,089,492

F1 · kind: Effective February 26, 2019, Warburg Pincus X Partners, L.P. and Warburg Pincus Private Equity X OG, L.P. distributed an aggregate of 17,514,871 shares of common stock to their partners, including Canton Investment Holdings LLC ("Canton"), on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities, with no consideration being paid in connection therewith (the "Distribution").

F1 · price: Effective February 26, 2019, Warburg Pincus X Partners, L.P. and Warburg Pincus Private Equity X OG, L.P. distributed an aggregate of 17,514,871 shares of common stock to their partners, including Canton Investment Holdings LLC ("Canton"), on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities, with no consideration being paid in connection therewith (the "Distribution").

F2 · balance_after: Includes 91,191 shares of common stock that remain subject to vesting.

F3 · balance_after: Includes 3,848,997 shares of common stock held by Canton, including the 1,158 shares of common stock received in the Distribution. The Reporting Person is the managing member and 50% owner of Canton. The Reporting Person disclaims beneficial ownership of all shares held by Canton except to the extent of his pecuniary interest therein.

SEC source: 0001104659-19-014647 · a4.xml · nonDerivative · entry 1

RADY PAUL M · CIK 0001234637 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,284,264

F1 · kind: Effective February 26, 2019, Warburg Pincus X Partners, L.P. and Warburg Pincus Private Equity X OG, L.P. distributed an aggregate of 17,514,871 shares of common stock to their partners, including Salisbury Investment Holdings LLC ("Salisbury"), on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities, with no consideration being paid in connection therewith (the "Distribution").

F1 · price: Effective February 26, 2019, Warburg Pincus X Partners, L.P. and Warburg Pincus Private Equity X OG, L.P. distributed an aggregate of 17,514,871 shares of common stock to their partners, including Salisbury Investment Holdings LLC ("Salisbury"), on a pro rata basis in accordance with their respective ownership interests as determined in accordance with the applicable limited partnership agreements of such entities, with no consideration being paid in connection therewith (the "Distribution").

F2 · balance_after: Includes 2,822,522 shares of common stock held by Salisbury Investment Holdings LLC ("Salisbury"), including the 1,158 shares of common stock received in the Distribution, and 2,461,712 shares of common stock held by Mockingbird Investments LLC ("Mockingbird"). The Reporting Person owns a 95% limited liability company interest in Salisbury and his spouse owns the remaining 5%. The Reporting Person owns a 13.1874% limited liability company interest in Mockingbird and two trusts under his control own the remaining 86.8126%. The Reporting Person disclaims beneficial ownership of all shares held by Salisbury and Mockingbird except to the extent of his pecuniary interest therein.

F2 · ownership.nature: Includes 2,822,522 shares of common stock held by Salisbury Investment Holdings LLC ("Salisbury"), including the 1,158 shares of common stock received in the Distribution, and 2,461,712 shares of common stock held by Mockingbird Investments LLC ("Mockingbird"). The Reporting Person owns a 95% limited liability company interest in Salisbury and his spouse owns the remaining 5%. The Reporting Person owns a 13.1874% limited liability company interest in Mockingbird and two trusts under his control own the remaining 86.8126%. The Reporting Person disclaims beneficial ownership of all shares held by Salisbury and Mockingbird except to the extent of his pecuniary interest therein.

SEC source: 0001104659-19-007565 · a4.xml · derivative · entry 4

Kilstrom Kevin J. · CIK 0001586805 · Senior VP-Production

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,334

Underlying: Common stock, par value $0.01 per share · 9,722 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F3 · price: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F3 · derivative.exercise_date: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F3 · derivative.expiration_date: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F5 · balance_after: Includes options to purchase 25,000 shares of common stock, including options to purchase 18,750 shares of common stock that are vested and exercisable and options to purchase 6,250 shares of common stock that vest and become exercisable on the next anniversary of the grant date so long as the Reporting Person remains continuously employed by the Issuer through such anniversary date. Each option to purchase common stock expires ten years from the date of grant, or April 15, 2025.

F6 · balance_after: Includes 58,334 performance share units that represent a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

SEC source: 0001104659-19-007565 · a4.xml · nonDerivative · entry 3

Kilstrom Kevin J. · CIK 0001586805 · Senior VP-Production

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,789

F4 · shares: In connection with the vesting of performance share 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 February 8, 2019.

F2 · balance_after: Includes 34,049 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-19-007565 · a4.xml · nonDerivative · entry 2

Kilstrom Kevin J. · CIK 0001586805 · Senior VP-Production

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,122

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F2 · balance_after: Includes 34,049 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-19-007565 · a4.xml · nonDerivative · entry 1

Kilstrom Kevin J. · CIK 0001586805 · Senior VP-Production

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,400

F1 · shares: In connection with the vesting 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 February 8, 2019.

F2 · balance_after: Includes 34,049 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-19-007564 · a4.xml · derivative · entry 4

Schopp Alvyn A. · CIK 0001586799 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,334

Underlying: Common stock, par value $0.01 per share · 22,222 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F3 · price: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F3 · derivative.exercise_date: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F3 · derivative.expiration_date: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F5 · balance_after: Includes options to purchase 25,000 shares of common stock, including options to purchase 18,750 shares of common stock that are vested and exercisable and options to purchase 6,250 shares of common stock that vest and become exercisable on the next anniversary of the grant date so long as the Reporting Person remains continuously employed by the Issuer through such anniversary date. Each option to purchase common stock expires ten years from the date of grant, or April 15, 2025.

F6 · balance_after: Includes 133,334 performance share units that represent a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

SEC source: 0001104659-19-007564 · a4.xml · nonDerivative · entry 3

Schopp Alvyn A. · CIK 0001586799 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,107,409

F4 · shares: In connection with the vesting of performance share 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 February 8, 2019.

F2 · balance_after: Includes 34,049 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-19-007564 · a4.xml · nonDerivative · entry 2

Schopp Alvyn A. · CIK 0001586799 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,113,849

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: Each performance share unit represented a contingent right to receive one share of the Issuer's common stock upon the achievement of performance metrics established by the compensation committee of the Issuer's board of directors tied to the 10-day weighted average stock price of the Issuer's common stock and satisfaction of certain time-based vesting conditions during the period beginning on the date of grant and ending on the fifth anniversary thereof.

F2 · balance_after: Includes 34,049 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-19-007564 · a4.xml · nonDerivative · entry 1

Schopp Alvyn A. · CIK 0001586799 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,091,627

F1 · shares: In connection with the vesting 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 February 8, 2019.

F2 · balance_after: Includes 34,049 shares of common stock subject to previously granted restricted stock unit awards that remain subject to vesting.

SEC source: 0001104659-19-001881 · a4.xml · nonDerivative · entry 1

CLARK ROBERT J · CIK 0000020769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,614

SEC source: 0001104659-19-001882 · a4.xml · nonDerivative · entry 1

Levy James R. · CIK 0001535563 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,580

SEC source: 0001104659-19-001880 · a4.xml · nonDerivative · entry 1

McConnell Joyce E. · CIK 0001732579 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,616

SEC source: 0001104659-19-001879 · a4.xml · nonDerivative · entry 1

Connor Richard W. · CIK 0001587406 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,749

SEC source: 0001104659-19-001878 · a4.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 196,704

SEC source: 0001104659-19-001877 · a4.xml · nonDerivative · entry 1

KAGAN PETER · CIK 0001239315 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 356,438

SEC source: 0001104659-19-001875 · a4.xml · nonDerivative · entry 1

Hardesty Benjamin A. · CIK 0001587768 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,260

SEC source: 0001104659-19-001874 · a4.xml · nonDerivative · entry 1

KORUS PAUL · CIK 0001196776 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,275

SEC source: 0001104659-18-073380 · a4.xml · nonDerivative · entry 1

Kennedy Michael N. · CIK 0001477679 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,098

F1 · shares: 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 December 14, 2018.

F2 · balance_after: Includes 34,048 shares of common stock that remain subject to vesting.

SEC source: 0001104659-18-073379 · a4.xml · nonDerivative · entry 1

Yoo K. Phil · CIK 0001587503 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,094

F1 · shares: 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 December 14, 2018.

F2 · balance_after: Includes 17,638 shares of common stock that remain subject to vesting.

SEC source: 0001104659-18-071483 · a4.xml · nonDerivative · entry 1

CLARK ROBERT J · CIK 0000020769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,924

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.80 to $12.82, 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.

SEC source: 0001104659-18-069632 · a4.xml · nonDerivative · entry 1

Hardesty Benjamin A. · CIK 0001587768 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,570

SEC source: 0001104659-18-067067 · a4.xml · nonDerivative · entry 1

Connor Richard W. · CIK 0001587406 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,059

SEC source: 0001104659-18-067333 · a4.xml · nonDerivative · entry 3

Warburg Pincus Private Equity VIII, L.P. · CIK 0001157334 · Director · 10% owner

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · balance_after: This Form 4 is filed on behalf 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").

F2 · balance_after: WP-WPVIII Investors GP L.P., a Delaware limited partnership ("WP-WPVIII Investors GP"), is the general partner of WP-WPVIII Investors. WPP GP LLC, a Delaware limited liability company ("WPP GP"), is the general partner of WP-WPVIII Investors GP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is (i) the managing member of WPP GP, and (ii) the general partner of WP VIII and WP VIII CV I. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners.

F3 · balance_after: Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP.

F5 · ownership.nature: Common Stock of the Issuer is held directly by WP-WPVIII Investors.

SEC source: 0001104659-18-067333 · a4.xml · nonDerivative · entry 2

Warburg Pincus Private Equity VIII, L.P. · CIK 0001157334 · Director · 10% owner

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · balance_after: This Form 4 is filed on behalf 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").

F2 · balance_after: WP-WPVIII Investors GP L.P., a Delaware limited partnership ("WP-WPVIII Investors GP"), is the general partner of WP-WPVIII Investors. WPP GP LLC, a Delaware limited liability company ("WPP GP"), is the general partner of WP-WPVIII Investors GP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is (i) the managing member of WPP GP, and (ii) the general partner of WP VIII and WP VIII CV I. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners.

F3 · balance_after: Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP.

F4 · ownership.nature: Common Stock of the Issuer is held directly by WP VIII CV I.

SEC source: 0001104659-18-067333 · a4.xml · nonDerivative · entry 1

Warburg Pincus Private Equity VIII, L.P. · CIK 0001157334 · Director · 10% owner

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · balance_after: This Form 4 is filed on behalf 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").

F2 · balance_after: WP-WPVIII Investors GP L.P., a Delaware limited partnership ("WP-WPVIII Investors GP"), is the general partner of WP-WPVIII Investors. WPP GP LLC, a Delaware limited liability company ("WPP GP"), is the general partner of WP-WPVIII Investors GP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is (i) the managing member of WPP GP, and (ii) the general partner of WP VIII and WP VIII CV I. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners.

F3 · balance_after: Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP.

SEC source: 0001104659-18-067332 · a4.xml · nonDerivative · entry 3

Warburg Pincus Private Equity X O&G, L.P. · CIK 0001528258 · Director · 10% owner

Warburg Pincus Private Equity X, L.P. · CIK 0001414565 · Director · 10% owner

Warburg Pincus X Partners, L.P. · CIK 0001451560 · Director · 10% owner

Warburg Pincus X, L.P. · CIK 0001414561 · Director · 10% owner

Warburg Pincus X GP L.P. · CIK 0001414564 · Director · 10% owner

WPP GP LLC · CIK 0001621874 · Director · 10% owner

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,042,935

F1 · balance_after: This Form 4 is filed on behalf of (i) Warburg Pincus Private Equity X, L.P., a Delaware limited partnership ("WP X"), and Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners", and together with WP X, "WP X Funds"); and (ii) Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G").

F2 · balance_after: Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of the 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"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners.

F3 · balance_after: Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP.

F4 · balance_after: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Warburg Pincus Reporting Persons and certain affiliates may be deemed to be beneficial owners of 1,042,935 shares of common stock, par value $0.01 per share ("Common Stock") of Antero Resources Corporation (the "Issuer") held collectively by the WP X Funds and 32,566,126 shares of Common Stock of the Issuer held by WP X O&G. The Warburg Pincus Reporting Persons and such affiliates disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. WP Partners, WP Partners GP, and WP are directors-by-deputization solely for purposes of Section 16 of the Exchange Act.

F5 · balance_after: Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F7 · ownership.nature: Common Stock of the Issuer is held directly by WP X Partners.

SEC source: 0001104659-18-067332 · a4.xml · nonDerivative · entry 2

Warburg Pincus Private Equity X O&G, L.P. · CIK 0001528258 · Director · 10% owner

Warburg Pincus Private Equity X, L.P. · CIK 0001414565 · Director · 10% owner

Warburg Pincus X Partners, L.P. · CIK 0001451560 · Director · 10% owner

Warburg Pincus X, L.P. · CIK 0001414561 · Director · 10% owner

Warburg Pincus X GP L.P. · CIK 0001414564 · Director · 10% owner

WPP GP LLC · CIK 0001621874 · Director · 10% owner

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F6 · ownership.nature: Common Stock of the Issuer is held directly by WP X.

SEC source: 0001104659-18-067332 · a4.xml · nonDerivative · entry 1

Warburg Pincus Private Equity X O&G, L.P. · CIK 0001528258 · Director · 10% owner

Warburg Pincus Private Equity X, L.P. · CIK 0001414565 · Director · 10% owner

Warburg Pincus X Partners, L.P. · CIK 0001451560 · Director · 10% owner

Warburg Pincus X, L.P. · CIK 0001414561 · Director · 10% owner

Warburg Pincus X GP L.P. · CIK 0001414564 · Director · 10% owner

WPP GP LLC · CIK 0001621874 · Director · 10% owner

Warburg Pincus Partners, L.P. · CIK 0001621242 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,566,126

F1 · balance_after: This Form 4 is filed on behalf of (i) Warburg Pincus Private Equity X, L.P., a Delaware limited partnership ("WP X"), and Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners", and together with WP X, "WP X Funds"); and (ii) Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G").

F2 · balance_after: Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of the 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"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners.

F3 · balance_after: Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP.

F4 · balance_after: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Warburg Pincus Reporting Persons and certain affiliates may be deemed to be beneficial owners of 1,042,935 shares of common stock, par value $0.01 per share ("Common Stock") of Antero Resources Corporation (the "Issuer") held collectively by the WP X Funds and 32,566,126 shares of Common Stock of the Issuer held by WP X O&G. The Warburg Pincus Reporting Persons and such affiliates disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. WP Partners, WP Partners GP, and WP are directors-by-deputization solely for purposes of Section 16 of the Exchange Act.

F5 · balance_after: Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

SEC source: 0001104659-18-067338 · a4.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

KAYE CHARLES R · CIK 0001239318 · 10% owner

Landy Joseph P. · CIK 0001220638 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 33,609,061

F1 · ownership.nature: This Form 4 is filed on behalf of Warburg Pincus LLC, a New York limited liability company ("WP LLC") and Charles R. Kaye and Joseph P. Landy, each a Managing General Partner of Warburg Pincus & Co., a New York general partnership ("WP") and the Co-Chief Executive Officers and Managing Members of WP LLC (WP LLC, together with Messrs. Kaye and Landy, the "Warburg Pincus Reporting Persons").

F2 · ownership.nature: Warburg Pincus Private Equity X O&G, L.P., a Delaware limited partnership ("WP X O&G"), was an existing shareholder of the Company prior to the sale by WP X O&G as reported on a separate Form 4 (the "WP X O&G Sale") and currently holds 32,566,126 shares of common stock, par value $0.01 per share ("Common Stock") of Antero Resources Corporation (the "Issuer"). Warburg Pincus X, L.P., a Delaware limited partnership ("WP X") was an existing shareholder of the Company prior to the sale by WP X as reported on a separate Form 4 (the "WP X Sale"), and currently owns 0 shares of Common Stock. Warburg Pincus X Partners, L.P., a Delaware limited partnership ("WP X Partners"), was an existing shareholder of the Company prior to the sale by WP X Partners as reported on a Separate Form 4 (the "WP X Partners Sale") and currently owns 1,042,935 shares of Common Stock.

F3 · ownership.nature: Warburg Pincus Private Equity VIII, L.P., a Delaware limited partnership ("WP VIII"), Warburg Pincus Netherlands Private Equity VIII C.V. I, a Company formed under the laws of the Netherlands ("WP VIII CV I") and WP-WP VIII Investors, L.P., a Delaware limited partnership ("WP-WP VIII Investors" and collectively, the "WP VIII Funds"), were existing shareholders of the Company prior to the sale by the WP VIII Funds as reported on a Separate Form 4 (the "WP VIII Sale" and, together with the WP X O&G Sale, the WP X Sale and the WP X Partners Sale, collectively, the "Sale") and currently own 0 shares of Common Stock. WP LLC manages each of WP X O&G, WP X, WP X Partners and the WP VIII Funds (collectively, the "WP Funds") and WP is the ultimate general partner of the WP Funds. Therefore, the consummation of the Sale altered the indirect beneficial ownership of the Reporting Persons in the shares of Common Stock.

F4 · ownership.nature: Charles R. Kaye and Joseph P. Landy are each Managing General Partners of WP and Managing Members and Co-Chief Executive Officers of WP LLC and may be deemed to control the Warburg Pincus Reporting Persons. Messrs. Kaye and Landy disclaim beneficial ownership of all shares held by the Warburg Pincus Reporting Persons.

F5 · ownership.nature: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Warburg Pincus Reporting Persons and certain affiliates may be deemed to be beneficial owners of 33,609,061 shares of Common Stock of the Issuer held collectively by the WP Funds. The Warburg Pincus Reporting Persons and such affiliates disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein.

F6 · ownership.nature: Each of Charles R. Kaye and Joseph P. Landy serves as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC. Therefore, the consummation of the sale by the WP X Funds and WP X O&G reported hereunder altered the indirect beneficial ownership of the Reporting Persons in the shares of Common Stock. In addition to the 33,609,061 shares of Common Stock in which Charles R. Kaye may be deemed to have indirect beneficial ownership by virtue of his status as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC, Mr. Kaye currently owns, directly and indirectly, 89,915 shares of Common Stock. In addition to the 33,609,061 shares of Common Stock in which Joseph P. Landy may be deemed to have indirect beneficial ownership by virtue of his status as Managing General Partner of WP and Co-Chief Executive Officer and Managing Member of WP LLC, Mr. Landy currently owns 565,799 shares of Common Stock.

SEC source: 0001104659-18-067336 · a4.xml · nonDerivative · entry 2

KAGAN PETER · CIK 0001239315 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 33,609,061

F1 · ownership.nature: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). The Warburg Pincus Entities (as defined below in footnote 4) collectively own 33,609,061 shares of common stock ("Common Stock") of Antero Resources Corporation (the "Issuer") as of the date hereof.

F2 · ownership.nature: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities, due to which Mr. Kagan may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Kagan disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F3 · ownership.nature: The Warburg Pincus Funds are 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"), 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"). WP-WPVIII Investors GP L.P., a Delaware limited partnership ("WP-WPVIII GP") is the general partner of WP-WPVIII Investors.

F4 · ownership.nature: Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of the 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"), is the general partner of WP X GP LP and WP-WPVIII GP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is (i) the managing member of WPP GP, and (ii) the general partner of WP VIII and WP VIII CV I. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners. WP, is the managing member of WP Partners GP. WP LLC, is the manager of the WP VIII Funds, the WP X Funds and WP X O&G.

F5 · ownership.nature: Each of the WP VIII Funds, the WP X Funds, WP X O&G, WP-WPVIII GP, WP X GP, WP X GP LP, WPP GP, WP Partners, WP Partners GP, WP and WP LLC are collectively referred to herein as the "Warburg Pincus Entities."

SEC source: 0001104659-18-067335 · a4.xml · nonDerivative · entry 2

Levy James R. · CIK 0001535563 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 33,609,061

F1 · ownership.nature: The Reporting Person is a Partner of Warburg Pincus & Co., a New York general partnership ("WP"), and a Member and Managing Director of Warburg Pincus LLC, a New York limited liability company ("WP LLC"). The Warburg Pincus Entities (as defined below in footnote 4) collectively own 33,609,061 shares of common stock ("Common Stock") of Antero Resources Corporation (the "Issuer") as of the date hereof.

F2 · ownership.nature: All shares of Common Stock of the Issuer indicated as indirectly owned by the Reporting Person are included because of his affiliation with the Warburg Pincus Entities (defined below), due to which Mr. Levy may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 under the Securities and Exchange Act of 1934, as amended) in an indeterminate portion of the shares of Common Stock of the Issuer owned by the Warburg Pincus Entities. Mr. Levy disclaims beneficial ownership of all shares of Common Stock of the Issuer attributable to the Warburg Pincus Entities except to the extent of his direct pecuniary interest therein.

F3 · ownership.nature: The Warburg Pincus Funds are 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"), 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"). WP-WPVIII Investors GP L.P., a Delaware limited partnership ("WP-WPVIII GP") is the general partner of WP-WPVIII Investors. Warburg Pincus X, L.P., a Delaware limited partnership ("WP X GP"), is the general partner of the WP X Funds and WP X O&G.

F4 · ownership.nature: 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"), is the general partner of WP X GP LP and WP-WPVIII GP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is (i) the managing member of WPP GP, and (ii) the general partner of WP VIII and WP VIII CV I. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners. WP, is the managing member of WP Partners GP. WP LLC, is the manager of the WP VIII Funds, the WP X Funds and WP X O&G.

F5 · ownership.nature: Each of the WP VIII Funds, the WP X Funds, WP X O&G, WP-WPVIII GP, WP X GP, WP X GP LP, WPP GP, WP Partners, WP Partners GP, WP and WP LLC are collectively referred to herein as the "Warburg Pincus Entities."

SEC source: 0001104659-19-007566 · a5.xml · nonDerivative · entry 1

RADY PAUL M · CIK 0001234637 · Director · Chairman of the Board & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,567,281

F1 · balance_after: Includes 136,786 shares of common stock that remain subject to vesting.

SEC source: 0001104659-18-061876 · a4.xml · nonDerivative · entry 1

CLARK ROBERT J · CIK 0000020769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,353

SEC source: 0001104659-18-061877 · a4.xml · nonDerivative · entry 1

McConnell Joyce E. · CIK 0001732579 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,926

SEC source: 0001104659-18-061875 · a4.xml · nonDerivative · entry 1

Connor Richard W. · CIK 0001587406 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,966

SEC source: 0001104659-18-061874 · a4.xml · nonDerivative · entry 1

Hardesty Benjamin A. · CIK 0001587768 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,570

SEC source: 0001104659-18-061873 · a4.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,014

SEC source: 0001104659-18-061872 · a4.xml · nonDerivative · entry 1

KAGAN PETER · CIK 0001239315 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 349,872

SEC source: 0001104659-18-061871 · a4.xml · nonDerivative · entry 1

Levy James R. · CIK 0001535563 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,131

SEC source: 0001104659-18-051553 · a4.xml · nonDerivative · entry 1

Yoo K. Phil · CIK 0001587503 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,318

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 7, 2017.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.57 to $18.59, 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.

F3 · balance_after: Includes 32,213 shares of common stock that remain subject to vesting.