The Cogdell field, straddling the Scurry-Kent county line just north of SACROC, is the Kelly-Snyder boom’s quieter sibling — a Pennsylvanian Canyon Reef accumulation on the same Horseshoe Atoll trend, discovered in 1949, unitized in the 1950s, and CO2-flooded for decades. It remains an active EOR project and an active market for the fragmented royalty interests the 1950s boom left behind.
Source: Texas Railroad Commission production filings, aggregated across RRC field designations 19346142, 19346426. Reported volumes lag the calendar by several months.
Cogdell was discovered in 1949, months after Kelly-Snyder proved the Canyon Reef play, as operators traced the buried Horseshoe Atoll northward. The Cogdell Area Unit followed in the mid-1950s so that water injection could arrest the same rapid pressure decline that had threatened SACROC — reef reservoirs produce spectacularly but deplete their own drive energy quickly without support.
CO2 injection came to Cogdell in stages beginning in the early 1980s, benefiting from the CO2 pipeline infrastructure the region had built for SACROC. Kinder Morgan, which operates SACROC, acquired and expanded its position in the Cogdell area flood in the 2010s, and the unit has been cited in engineering literature for strong incremental response to expanded CO2 injection.
Today Cogdell produces from a handful of large unitized leases — the classic profile of a mature reef flood: few operators, big units, long remaining tails, and a mineral ownership base scattered across the descendants of 1950s lessors.
Cogdell produces from the same Pennsylvanian Canyon Reef complex as SACROC — part of the Horseshoe Atoll, a massive arc of buried carbonate reefs beneath the eastern Permian Basin — at depths around 6,800 feet, with lesser San Andres pays above. Reef rock of this quality responds exceptionally well to miscible CO2, which is why the Atoll fields have hosted some of the longest-running floods in the world.
Cogdell’s CO2 flood demonstrates the compounding value of regional EOR infrastructure: once pipelines and processing existed for SACROC, neighboring reef fields could be flooded at far lower capital cost, and expansions since the 2010s have added measurable production decades after discovery. For royalty owners, the flood converted a field that would have been long-abandoned into one with visible remaining life.
Cogdell interests share SACROC’s ownership profile — multi-generation heirs, unit-basis payments, and title that has drifted from the family tree — with a smaller spotlight on them. That makes fair pricing knowledge-dependent: the buyer must actually understand reef-flood tails. We buy Cogdell and Horseshoe Atoll area minerals and royalties in Scurry and Kent counties, and our offers price the flood’s documented performance, not a formula.
County-level well data, production charts, and selling guides for the counties this field spans:
They are neighboring Canyon Reef fields on the same Horseshoe Atoll trend, discovered months apart in 1948-49. Both were unitized in the 1950s and both host long-running CO2 floods; Kinder Morgan operates SACROC and has expanded the Cogdell flood since the 2010s.
Yes — the Cogdell field designations still report several hundred thousand barrels of oil a year to the Texas Railroad Commission from a handful of large unitized leases, supported by CO2 injection.
A buried arc of Pennsylvanian-age carbonate reefs curving beneath Scurry, Kent, and neighboring counties. Its fields — SACROC, Cogdell, Salt Creek, and others — hold some of the best EOR rock in Texas and host several of the longest-running CO2 floods in the world.