The Verde-Gallup pool is producing oil from fractures within the final regressive phase of the Lower Gallup sandstone and shale interval. The fracture system is intimately related to the structural Hogback monocline, and results from the response of incompetent beds to the relatively abrupt compressional flexing which occurred along this monocline. The regressive nature of the productive zones may exert some stratigraphic influence on the field. The limits of the field are presently undefined. Production data are too inconclusive to indicate the capacity and longevity of the field, however, the field as a whole compares favorable to the very old and prolific Florence-Canon City Field of southeastern Colorado.