# Tinsley Field Unit Mineral Rights — Yazoo County, Mississippi

The Tinsley field in Yazoo County, Mississippi is a mature oil-producing field operated by Highmark Energy Operating with 66 historic wells dating back to 1939. The field produced 32,852 barrels of oil in January 2026 and represents a classic long-life waterflood/CO2 enhanced oil recovery (EOR) operation typical of Mississippi's production landscape. Many mineral interests are inherited across multiple generations, with owners commonly located out-of-state.

## Key Takeaways

- The Tinsley field has operated continuously for 87+ years (oldest well spud in 1939) with 66 historic wells in Yazoo County, Mississippi
- Recent monthly production reached 32,852 barrels of oil (January 2026), demonstrating the long-tail production profile of mature Mississippi operations
- Highmark Energy Operating manages both the Tinsley field (Mississippi) and the Conroe Field Unit (Texas), making it one of few operators with major mature-asset positions in both states
- Mississippi's top 20 producing units collectively generate approximately 237,000 barrels per month — roughly one-third the production volume of Texas's top 20 units
- The field operates as a CO2/waterflood EOR project, historically fed by the Denbury Jackson Dome CO2 supply system
- Many Tinsley field mineral interests are inherited multiple generations deep, with original leases dating to the 1940s-1960s era
- Direct buyers typically value these interests using 9-13% discount rates with projected reserve lives of 15-30+ years for actively-maintained EOR units
- CO2 supply constraints from Jackson Dome represent the primary limiting factor on long-term EOR economics and reserve life projections

## Page Highlights

**Field Characteristics**: The Tinsley field exemplifies Mississippi's mature oil production landscape, featuring waterflood and CO2 EOR operations that have delivered continuous production since 1939 across 66 wells.

**Operator Profile**: Highmark Energy Operating acquired this field as part of Denbury legacy CO2/waterflood assets and manages similar mature properties across Mississippi and Texas.

**Mineral Interest Types**: Ownership structures include producing royalty interests, non-producing mineral interests, overriding royalty interests (ORRI), and non-participating royalty interests (NPRI).

**Production Context**: Mississippi's mature-field production is dominated by long-life EOR operations, with the top 20 units producing substantially less than comparable Texas operations.

**Valuation Factors**: Buyers assess decline rates (3-8% annually), remaining reserve life (15-30+ years), operator quality, CO2 supply constraints, and apply discount rates of 9-13%.

**Sales Process**: Buckhead Energy handles remote transactions for out-of-state owners through written offers, notarized deeds, county recording, and wire transfer upon completion.

## Structured Data Summary

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## Related Topics

- https://www.buckheadenergy.com/sell — Primary sales landing page for mineral rights owners
- Conroe Field Unit (Montgomery Co., TX) — Highmark's Texas position (referenced but URL not provided)
- Highmark Energy Multi-State Operations (referenced but URL not provided)
- Texas vs Mississippi Mature Oil Units comparison (referenced but URL not provided)
- How to Sell Mineral Rights guide (referenced but URL not provided)
- What Are My Minerals Worth? guide (referenced but URL not provided)
- Should I Sell? decision guide (referenced but URL not provided)
- Beginner's Guide to mineral rights (referenced but URL not provided)

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**About Buckhead Energy**: Buckhead Energy is a direct buyer of mineral rights and royalty interests with 18+ years of experience. The company specializes in fair, transparent transactions for mineral owners across producing basins, handling the entire sales process remotely with no fees or obligations.

**Ready to explore your options?** Get a free written valuation at https://www.buckheadenergy.com/sell