Hall's other business include oil and gas investments. In August 2009, Hall was appointed by Governor Perry to the Texas Higher Education Coordinating Board. In 2011 Governor Perry appointed Hall to the University of Texas System Board of Regents. In February 2011, Hall was unanimously confirmed as a Regent by the Texas Senate. The UT System Board of Regents oversees nine universities, including the flagship University of Texas at Austin, and six hospitals or medical institutions. The University of Texas System is one of the largest higher education organizations in the United States, its enrollment is more than 213,000 students and it has an annual operating budget of more than $14.6 billion. The System’s nine regents are in charge of appointing the universities’ presidents, approving budgets, creating new schools, and creating policies and procedures for the students and faculties. He is now Chairman of the Technology Transfer and Research Committee and is a member of the Audit, Compliance, and Management Review Committee and the Finance and Planning Committee. He is the Board’s Liaison to the Governor’s Office on Technology Transfer and Commercialization Issues. After he was appointed in 2011, Hall began looking into what he believed to be administrative and management issues at The University of Texas at Austin. The investigations made three major findings:   Hall filed four open records requests with The University of Texas at Austin after his inquiries via his role as a Regent were delayed. Early in Hall's tenure on the board, an open records request filed by three law professors revealed details concerning a large private endowment used to provide off-the-books six-figure forgivable loans to certain faculty members. This had not been reported to the board and was out of sight of the university's formal compensation system. Hall wanted to know how large the forgivable loans were and who had decided who received them. In March 2013, the Board of Regents voted to re-open the forgivable loans investigation rejecting and abandoning a previously prepared report by then UT System General Counsel Barry Burgdorf. Hall used Open Records requests to investigate whether the legislature had improperly used political influence in admissions, specifically at the law school. According to Texas Monthly, "The allegations set off an uproar, and most of the fury was directed at Hall himself. Politicians, fiercely loyal UT alumni, and some of Hall’s fellow regents came to (University of Texas President) Powers’s defense, claiming that Hall was carrying out what many of them described as a "witch hunt." Ultimately, the System investigated the allegations.