ECA Marcellus Trust I

ECA Marcellus Trust I is a statutory trust formed in March 2010 under the Delaware Statutory Trust Act. The Trust's offices are located at 601 Travis Street, 16th Floor, Houston, Texas 77002. The Bank of New York Mellon Trust Company, N.A. serves as the Trustee, and Wilmington Trust Company is the Delaware Trustee. In November 2017, Greylock Energy, LLC and its wholly owned subsidiaries, including Greylock Production, LLC and Greylock Midstream, LLC, acquired substantially all of the gas production and midstream assets of Legacy ECA. This acquisition included all of Legacy ECA's interests in certain natural gas properties that are subject to the Royalty Interests. Greylock Production, LLC operates the wells related to these interests. Greylock Midstream, LLC's subsidiaries are responsible for marketing and gathering some of the gas produced. In connection with this acquisition, Greylock Production assumed all of Legacy ECA's obligations under the Trust Agreement and other related instruments. These obligations include the Administrative Services Agreement dated July 7, 2010, and a letter agreement concerning loans from Legacy ECA to the Trust to cover its liabilities.