Eclipse Resources I, LP announced that Marty L. Byrd will join company effective July 1, 2013 as Vice President -- Land. Mr. Byrd brings over 30-years of land experience to the company and was most recently the Vice President, Land, Eastern Division -- Appalachian Basin for Chesapeake Energy Corporation where he managed and coordinated the land activities that resulted in the establishment of over 600 horizontal well units and 400 horizontal wells with a 26-rig drilling program in the Marcellus Shale.