Rio Grande is a privately held company engaged in the acquisition, exploration and development of natural gas and oil assets in South Texas. Rio Grande was founded in June 2017 by Glenn Hart (the former Chief Executive Officer of Michael Petroleum Corporation and Laredo Energy) and GS Gas LLC (whose principals include Governor Jeb Bush and Jeb Bush, Jr). The Rio Grande management team, which includes industry veterans Jerry Holditch and Brian Butler, specializes in South Texas natural gas production, particularly in Webb County, and the area surrounding Laredo, Texas. The management team has collectively drilled more than 500 wells, acquired interests in over 1,000 wells, and held oil and gas leases of over 500,000 acres in the area of specialization. Columbus Energy, LLC is a wholly owned subsidiary of Rio Grande E&P, LLC.