C. Brent Shumard Consulting Geologist Tulsa Loren E. Avis Plains Petroleum Operating Co. Denver The 1979 discovery of Southwest Stockholm field is directly attributable to the reevaluation of an untested and underpressured (1,038 psi at 5,130 ft) lower Morrow sandstone (Lower Pennsylvanian) in a well that appeared to be a dry hole drilled and abandoned 10 years earlier. The Southwest Stockholm field provides an important predictive exploration model for Lower Pennsylvanian Morrow fluvial valley fill sandstone reservoirs in the Hugoton embayment/Las Animas arch area of the western Midcontinent. The model clearly sh...

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