West Edmond came in during the Second World War, when demand for domestic crude was at its most urgent, and it proved to be one of the last very large conventional discoveries in central Oklahoma. The field runs north and west of Oklahoma City across parts of Oklahoma, Logan and Canadian counties, producing from Hunton lime — the Bois d’Arc among its intervals — on the shelf east of the deep Anadarko Basin. Much of it was later unitized for coordinated operation, and it remains a mature, low-rate producer with an old and widely divided royalty base.
By 1943 the Oklahoma City field a few miles to the south had been producing for more than a decade, and the shelf north of it was thought to be largely drilled out. West Edmond disproved that. The discovery opened a large accumulation in Hunton carbonate rather than in the sands that had made most central Oklahoma fields, and drilling spread quickly across the Edmond countryside. The timing mattered: wartime allocation put a premium on new domestic supply, and the field was developed under far more engineering discipline than the 1920s booms had allowed.
That discipline showed up as unitization. Rather than let hundreds of separately operated leases drain a common reservoir at cross purposes, operators pooled much of the productive area into a single lime unit run as one engineering system. Unitization changed how royalties are paid here — owners share in unit production through a participation factor assigned to their tract rather than being paid on specific wells — and it extended the field’s life well beyond what lease-by-lease competition would have produced. It also left a paper trail that still governs many interests today.
The decades since have been about maintenance and periodic reinvention. Pressure support, workovers and recompletions have kept the carbonate producing, and at various points operators have looked at the unit for gas storage and for horizontal redevelopment of intervals the vertical wells did not drain. None of that has restored anything like early rates. The field today is a mature carbonate producer whose royalty owners receive small, steady payments and whose value turns on unit terms rather than on drilling headlines.
West Edmond produces from Hunton carbonates of Silurian and Devonian age, including the Bois d’Arc, beneath the Pennsylvanian section on the shelf that steps down westward into the Anadarko Basin. The trap is a combination of structural position and truncation, with the Hunton beveled by erosion beneath younger rocks so that porous carbonate is sealed updip. Porosity in the Hunton is uneven — vuggy and fractured in places, tight nearby — which is why well results vary within short distances and why unitized operation suited the reservoir better than competitive drilling.
West Edmond has been managed for pressure rather than flooded in the dramatic Permian sense. Unitized operation allowed injection and withdrawal to be balanced across the reservoir, which is the single biggest reason a 1943 discovery still produces. Later operators have evaluated the Hunton for horizontal drilling and for dewatering techniques that lower reservoir pressure to liberate oil, an approach used widely in Oklahoma Hunton reservoirs. Owners should treat any of that as upside to be verified lease by lease, not as something to assume applies to their tract.
A unitized field changes the questions an owner has to ask. Your payment depends on a tract participation factor and on unit terms, not on whichever well is nearest, and two neighbouring tracts can be valued very differently because of it. West Edmond interests are also old enough that title has usually passed through several estates. We read the unit agreement and the check detail before quoting anything, and we buy direct. We buy minerals and royalties in Oklahoma, Logan and Canadian counties and provide free written offers.
County-level well data, production charts, and selling guides for the counties this field spans:
In a unit you generally share in total unit production according to a participation factor assigned to your tract, rather than being paid on wells drilled on your land. That is why a well on a neighbour’s property can still pay you, and why a well on yours may not pay more. When we evaluate a West Edmond interest we ask for the unit agreement or recent check detail first.
No. They are separate fields a few miles apart. The Oklahoma City field was discovered in 1928 and famously drilled into the state capitol grounds; West Edmond was found in 1943 to the north and produces mainly from Hunton carbonate. Many central Oklahoma families own interests in one, the other, or both.
Sometimes, but it has to be verified rather than assumed. Horizontal activity in central Oklahoma has targeted several intervals over the years, and whether your tract is exposed depends on depth severances, lease terms and unit boundaries. We check the record and tell you what we actually find, including when the answer is that the tract has no realistic horizontal exposure.