Post-Permian Folding and Fracturing of the Spraberry and San Andres Formations Within the Midland Basin Region of West Texas

Tectonostratigraphic analysis of Permian Basin subsurface data indicates that earlier-formed faults were reactivated after the Permian. Present-day structure and depositional environments of the Spraberry and San Andres formations provide solid evidence that reactivation was later than the major regional Carboniferous through early Permian deformation.