Grey Rock Management Partners IV, LLC, a Delaware limited liability company (the Management Company and together with its affiliated entities, “Grey Rock”), commenced operations in 2021 with its office headquarters in Dallas, Texas. The Management Company is managed and controlled by Matt Miller, Griffin Perry, and Thad Darden (the “Principals”), together with Kirk Lazarine, Adam Griffin, and Eric Holley (the “Advisors”). The Management Company is registered under the Advisers Act pursuant to the Management Company’s registration in accordance with SEC guidance. This Brochure describes the business practices of Grey Rock and the general partner of each of the Funds (defined below) (each, a “General Partner”), which together operate as a single advisory business. No General Partner has personnel other than those persons associated with the Management Company. Grey Rock, or affiliated investment managers, of Grey Rock currently serve as investment advisers to Grey Rock Energy Fund IV-A, LP (“Fund IV-A”), a Delaware limited partnership; Grey Rock Energy Fund IV-B, LP (“Fund IV-B”), a Delaware limited partnership; Grey Rock Energy Fund IV-B Holdings, LP (“Fund IV-BH”), a Delaware limited partnership; and Grey Rock Net Zero Opportunities Fund I, LP (“Fund I”), a Delaware limited partnership (each a “Fund”, and together, the “Funds”). Grey Rock Management Partners GP IV-A, L.P., a Delaware limited partnership, is the general partner of Fund IV-A, Grey Rock Management Partners GP IV-B, L.P., a Delaware limited partnership, is the general partner of Fund IV-B and Fund IV-BH. Grey Rock Net Zero Opportunities Fund I GP, LP, a Delaware limited partnership, is the general partner of Fund I (each a “General Partner”, and together, the “General Partners”). Grey Rock Management Partners IV, LLC is the investment manager of Fund IV-A, Fund IV-B, and Fund IV-BH; GRIP Energy Transition Management, LLC, a Delaware limited liability company, is the investment manager of Fund I (each an “Investment Manager” and together the “Investment Managers”). Grey Rock Management Partners IV, LLC and GRIP Energy Transition Management, LLC are together filing a single umbrella registration with the Securities and Exchange Commission (“SEC”), and GRIP Energy Transition Management, LLC (a “relying adviser”) is listed

on Schedule R of Grey Rock’s Form ADV Part 1. Grey Rock provides discretionary investment advisory services to its clients, which consist of investment funds privately offered to qualified investors in the United States and elsewhere. The Funds make strategic investments in diversified non‐operated oil and gas assets in North America, and investments that serve to minimize, reduce, abate, or avoid global carbon dioxide equivalent (“CO2e”) emissions. Grey Rock may also establish one or more affiliated co- investment vehicles, comprised of the Principals and employees of Grey Rock, to invest “side- by-side” with the Funds. The Management Company has established a board of six managers, as well as investment committees (the “Investment Committee”) that is responsible for effectuating each Fund’s investment program and making investment, acquisition and disposition decisions for the Funds. The current members of the Investment Committee for Fund IV-A, Fund IV-B, and Fund IV-BH are the Principals. The current members of the Investment Committee for Fund I are Matt Miller, Thad Darden, Suhrid Mantravadi, and John Howard. The Advisors are entitled to vote on various items relating to the ownership and operation of the Management Company; however, the Advisors have no authority to act on behalf of or bind Grey Rock with respect to the acquisition or disposition of Fund investments. Grey Rock’s investment advisory services to the Funds consist of identifying and evaluating investment opportunities, negotiating the terms of investments, managing and monitoring investments and ultimately achieving dispositions for such investments. Additionally, Grey Rock will generally oversee the Funds’ assets in accordance with the terms of its advisory or management agreements, confidential offering and/or private placement memoranda, limited partnership agreement and other governing documents applicable to each Fund (the “Governing Documents”). Investment advice and management is provided directly to the Funds and not individually to the limited partners of or investors in the Funds (the “Investors”). All investment restrictions are described in the Governing Documents. Investors should review the Governing Documents for additional information regarding the Funds in which they have invested. As of December 31, 2023, the Management Company has $392,444,544 in assets under management on behalf of the Funds.