13D Filing: Monarch Alternative Capital and Resolute Energy Corp (REN)

Pursuant to Rule 13d-2 promulgated under the Act, this Amendment No. 2 to Schedule 13D (this
Amendment No. 2) is being filed with respect to the common stock, par value $0.0001 per share (Common Stock), of Resolute Energy Corporation (the Issuer), to amend the Schedule 13D filed
on January 26, 2018 (the Original 13D and, as amended by Amendment No. 1 to Schedule 13D filed on February 9, 2018 (Amendment No. 1) and this Amendment No. 2, the
Schedule 13D). Capitalized terms used but not otherwise defined herein shall have the meanings ascribed to them in the Schedule 13D.

Item 4 of this Schedule 13D is hereby amended to include the following:

On March 12, 2018, the Reporting Persons filed a preliminary proxy statement and accompanying proxy card (the Preliminary Proxy
Statement) with the SEC to vote on certain matters, including the election of three highly qualified Nominees at the Issuers Annual Meeting and the repeal of any amendment to the Bylaws of the Issuer adopted without stockholder
approval after February 8, 2018 (the date the Issuer received the Nomination Notice), and up to and including the date of the Annual Meeting. A copy of the Preliminary Proxy Statement is available on the SEC website (http://www.sec.gov) where
reports, proxy and information statements and other information regarding issuers and others that file electronically with the SEC may be obtained free of charge.

On March 12, 2018, the Reporting Persons issued a press release announcing the filing of the Preliminary Proxy Statement and related
matters, a copy of which is filed as Exhibit 99.5 hereto, and which is incorporated herein by reference.

Item 7 of this Schedule 13D is hereby amended to add the following
exhibit:

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