This cross section set comprises 14 dip (E-W) sections and 9 strike (N-S) stratigraphic cross sections (with text), correlating upper Pennsylvanian (Virgilian) and lower Permian (Wolfcampian) strata throughout the subsurface in all or parts of 28 counties of North-Central Texas. The cross-section network covers 22,000 square miles and was constructed by combining outcrop data with electric log data from 1,185 wells along 2,000 miles of cross sections to correlate about 20 limestone units. The network was further verified by correlating the limestones on electric logs from 4,000 additional off-section wells, for a total of more than 5,100 control points. Cores and samples were used locally to calibrate the lithic interpretation of electric logs. The cross sections define 16 principal and several lesser lithogenetic units, delineate many tectonic and paleobathymetric elements, and permit the distinction of 4 major depositional phases during the Virgilian and Wolfcampian Epochs. Published at a horizontal scale of approximately 6 miles per inch and a vertical scale of 200 feet per inch, the sections are designed to (1) provide regional correlations and stratigraphic control for geologists involved in subsurface studies of the Eastern Shelf and adjacent Midland Basin; (2) establish a regional stratigraphic framework necessary to map the distribution of sandstone bodies within the major lithostratigraphic units; (3) equate stratigraphic nomenclature established at type localities in outcrop with informal subsurface names used by petroleum geologists; (4) demonstrate the vertical and lateral variations in the principal Virgilian and Wolfcampian depositional sequences; and (5) provide a regional lithostratigraphic reference framework for workers who wish to unify petrographic, geochemical, paleontologic, and other geological data.