West Seminole Unit Mineral Rights — Gaines County, Texas

Unit Overview

About the West Seminole Unit

The West Seminole Unit is a sister field to the better-known Seminole San Andres Unit, also operated by OXY in Gaines County. Both fields are core CO2 EOR theaters in the Permian Basin Northwestern Shelf, with continuous tertiary recovery operations spanning multiple decades.

The West Seminole Unit is operated by Occidental Petroleum (OXY) as one of the long-tenured unitized oil operations in the Permian Basin (Central Basin Platform). With first production dating to 1936 and recent monthly oil output of 300,000+ barrels, the unit demonstrates the long-tail production profile that characterizes mature unitized operations in the region.

Seminole West Field Geology & Reservoir

The Seminole West field produces from the San Andres reservoir. Modern operating consolidation under the West Seminole Unit framework has stabilized field-level production through co2 eor.

For broader context on the Permian Basin (Central Basin Platform) producing region, see our Permian Basin mineral rights guide.

Mineral Interest Profile

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

Valuation Considerations

Direct buyers value West Seminole 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 (Central Basin Platform)

EOR upside — CO2 EOR operations can extend ultimate recovery beyond primary depletion estimates

Discount rate — typically 8-12% for stable unitized cash flows

Selling West Seminole Unit Mineral Rights

Buckhead Energy buys mineral rights and royalty interests on the West Seminole 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 Gaines County clerk, and proceeds wired the day of recording.

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