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Willard Unit Mineral Rights — Yoakum County, Texas

An owner's guide to mineral rights on the Willard Unit — operated by Occidental Petroleum (OXY) on the Wasson field in the Permian Basin (Northwestern Shelf).

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Unit Overview

County: Yoakum County, Texas

Field: Wasson

RRC District: 8A

Operator: Occidental Petroleum (OXY)

Approximate well count: 150+

First production: 1939

Recent monthly oil production: 250,000+ bbl

Recovery method: CO2 EOR + waterflood

About the Willard Unit

The Willard Unit is part of the giant Wasson field complex in Yoakum County. Like the neighboring Denver and Bennett Ranch units, it operates under continuous CO2 EOR sourced via the Permian CO2 pipeline network.

The Willard 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 1939 and recent monthly oil output of 250,000+ barrels, the unit demonstrates the long-tail production profile that characterizes mature unitized operations in the region.

Wasson Field Geology & Reservoir

The Wasson field produces from the San Andres reservoir. Modern operating consolidation under the Willard 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 Interest Profile

Mineral interests in the Willard 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 Willard Unit interests are inherited multiple generations deep, with original lease bonus paid in the early discovery era. Current Willard Unit mineral owners frequently include heirs spread across multiple states.

Valuation Considerations

Direct buyers value Willard Unit mineral interests using a discounted cash flow approach with these key inputs:

Decline rate — typically 3-8% annual on long-life unitized waterflood / EOR wells

Remaining reserve life — often 15-30+ years 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 — typically 8-12% for stable unitized cash flows

Selling Willard Unit Mineral Rights

Buckhead Energy buys mineral rights and royalty interests on the Willard 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 wired the day of recording.

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Key Takeaways

  • An owner guide to mineral rights on the Willard Unit — OXY-operated CO2 EOR unit in the giant Wasson field complex on the Permian Basin Northwestern Shelf.
  • Buckhead Energy is a direct buy-side firm; sellers pay no broker commissions, listing fees, or auction premiums.

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