The Khuff formation is ideal for acid fracturing because of the heterogeneous nature of the formation. Several acid types were used to fracture this tight, dolomitic formation. A large database of acid-fracture treatments (more than 70 wells) was used to investigate acid/rock interactions to determine the relationship between lithology and acid type. The full-length paper correlates the acid treatment to openhole logs, core petrophysical data, and flowback samples collected after acid-fracture treatments.