UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 4, 2012

ANTERO RESOURCES LLC

(Exact name of registrant as specified in its charter)

1625 17th Street
Denver, Colorado 80202
(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code (303) 357-7310

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o            Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o            Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o            Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o            Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 1.01                                           Entry into a Material Definitive Agreement.

On May 4, 2012, Antero Resources entered into a Fourth Amendment (the “Amendment”) to its Amended and Restated Credit Agreement with the lenders party thereto and J.P. Morgan Chase Bank, N.A., as administrative agent (the “Credit Agreement”).  The Amendment primarily provides for the increase of the borrowing base under the Credit Agreement from $1.2 billion to $1.55 billion and the increase of lender commitments under the Credit Agreement from $850 million to $950 million.  The Amendment also increased the maximum amount of the Credit Agreement from $1.5 billion to $2.5 billion.

A copy of the Amendment is attached hereto as Exhibit 10.1 and incorporated herein by reference.

Item 2.03                                           Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information set forth under Item 1.01 concerning the Amendment is incorporated herein by reference.

Item 7.01                                           Regulation FD Disclosure

On May 7, 2012, Antero Resources issued a press release, a copy of which is attached hereto as Exhibit 99.1, announcing the Amendment.

The information in this Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to liabilities of that section.

Item 9.01.                                        Financial Statements and Exhibits.

(d)                                 Exhibits.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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EXHIBIT INDEX

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