An owner's guide to mineral rights on the Denver Unit — operated by Occidental Petroleum (OXY) on the Wasson field in the Permian Basin (Northwestern Shelf).
Quick answer
Approximate well count: 200+
First production: 1937
Recent monthly oil production: 600,000+ bbl
Recovery method: CO2 EOR + waterflood
The Denver Unit is one of the largest unitized portions of the giant Wasson field in Yoakum County. The Wasson field is one of the historically largest oil fields in Texas and one of the most active CO2 EOR theaters in the Permian Basin.
The Denver Unit is operated by Occidental Petroleum (OXY) as one of the long-tenured unitized oil operations in the Permian Basin (Northwestern Shelf). With first production dating to 1937 and recent monthly oil output of 600,000+ barrels, the unit demonstrates the long-tail production profile that characterizes mature unitized operations in the region.
The Wasson field produces from the San Andres reservoir. Modern operating consolidation under the Denver Unit framework has stabilized field-level production through co2 eor + waterflood.
For broader context on the Permian Basin (Northwestern Shelf) producing region, see our Permian Basin mineral rights guide.
Mineral interests in the Denver Unit typically take one of these forms:
Producing royalty interest — your tract's contribution to the unit's monthly revenue, paid by the operator
Non-producing mineral interest — fee mineral ownership in a tract currently outside active producing zones
Overriding royalty interest (ORRI) — a royalty carved out of a working interest
Non-participating royalty interest (NPRI) — a royalty interest with no leasing or development rights
Many Denver Unit interests are inherited multiple generations deep, with original lease bonus paid in the early discovery era. Current Denver Unit mineral owners frequently include heirs spread across multiple states.
Direct buyers value Denver Unit mineral interests using a discounted cash flow approach with these key inputs:
Decline rate — slow, typical of long-life unitized waterflood / EOR wells
Remaining reserve life — long on actively-maintained units
Operator quality — Occidental Petroleum (OXY) is an established operator in the Permian Basin (Northwestern Shelf)
EOR upside — CO2 EOR + waterflood operations can extend ultimate recovery beyond primary depletion estimates
Discount rate — market-based, reflecting stable unitized cash flows
Buckhead Energy buys mineral rights and royalty interests on the Denver Unit. Out-of-state owners are common — many interests are inherited multiple generations deep. We handle the entire process remotely: free written offer by email, deed signed before a notary in your state, recorded with the Yoakum County clerk, and proceeds paid by check or wire once the deed is recorded.
Buckhead provides a free written offer. Our offer comes at no cost and no obligation.
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