The University of Texas at Dallas Geological Information Library, formerly the Geological Information Library of Dallas, was an integral off-campus operating part of the McDermott Library. It was housed on the first floor of One Energy Square in the midst of energy-related office complexes and linked to the University of Texas at Dallas library system via interlibrary loan, telefax, and computerized catalog. On December 22, 1969, the Geological Information Library of Dallas was incorporated as a nonprofit corporation and severed its legal attachment to the Dallas Geological Society. On September 24, 1971, the Internal Revenue Service ruled GILD to be a public foundation. In the same year the assets of the library were offered to the University of Texas at Dallas and accepted by the regents of the University of Texas System. All assets and future contributions were to be deeded to UTD, and operation of the library was to be funded by membership, user fees, and private contributions, and no state appropriations were to be used for operating expenses. Since its beginning, about 1,000 geologists, geophysicists, and engineers donated their collections of geoscience material to the library. These scholars traveled and lived all over the planet, gathered rocks, operated geophysical tools, made surface and subsurface maps, and mined hydrocarbons and other minerals. They wrote about their work or collected published and unpublished information on energy sources as far back as the divining rod. On open shelves, in file cabinets, and on microfiche were about three million well logs of every type, including thousands of sample and driller's logs; four million well-completion cards, including handwritten or typed cards for which there was no other source of information; manuscript data from reports on well histories; 65,000 topographic maps; hundreds of ownership maps covering periods for which data are difficult to obtain; 10,000 volumes of bound periodicals pertaining to energy; 2,500 hardcover books; and hundreds of reprints, circulars, reports, theses, dissertations, guidebooks, directories, manuals, atlases, bibliographies, and yearbooks. As a service to members, students, teachers, and university geoscience departments, the library published ten annotated bibliographies, seven on sedimentary basins in the southern United States and the southern Appalachians, one on geoscience literature in the China area, and two on water resources in the United States. By the mid-90s this program was closed and the collection sold.