# 45Q Tax Credits and Mississippi CO2 Sequestration Economics

**TL;DR:** The federal 45Q tax credit offers up to $85/ton for permanent CO2 sequestration, significantly impacting Mississippi's Jackson Dome CO2 infrastructure economics. While pore space rights (and thus 45Q credits) typically belong to surface owners rather than mineral owners, Mississippi mineral owners on legacy Denbury CO2 EOR fields face indirect effects as operators potentially reallocate CO2 from enhanced oil recovery to higher-value sequestration operations, shortening production tails and affecting royalty streams.

## Key Takeaways

- **45Q provides up to $85/ton for permanent geologic CO2 sequestration**, with lower rates for CO2 enhanced oil recovery (EOR) with secondary sequestration
- **Pore space rights—and therefore 45Q credits—typically belong to surface owners, not mineral owners** under most U.S. state legal frameworks
- **Cranfield field in Adams County serves as Mississippi's 45Q prototype**, transitioning from Denbury's first commercial CO2 flood (2008) to sequestration-priority operations under current operator Durango Operating
- **Mineral owners face indirect impacts when CO2 is reallocated from EOR to sequestration**, including shortened oil production tails and reduced royalty cash flow
- **ExxonMobil's acquisition of Denbury's legacy CO2 floods may accelerate sequestration transitions** under the company's Low Carbon Solutions strategy
- **Mineral interest valuations on Jackson Dome-supplied CO2 floods must account for EOR-versus-sequestration scenario tradeoffs**
- **Class VI permitting for CO2 sequestration creates operational complexity** that can affect producing well workover timing and field-level logistics

## Page Highlights

**Federal 45Q Tax Credit Framework**: The 45Q tax credit incentivizes permanent geologic CO2 sequestration at $85/ton, creating economic incentives for operators to prioritize sequestration over continued enhanced oil recovery operations, which receive lower credit rates alongside declining oil production economics.

**Cranfield Field Case Study**: Adams County's Cranfield field exemplifies Mississippi's sequestration evolution—launched as Denbury's first commercial Mississippi CO2 flood in 2008, it hosted the SECARB CO2 sequestration test program and has transitioned toward sequestration-priority operations under Durango Operating.

**Mineral Owner Economic Implications**: Though pore space rights belong to surface owners, mineral owners experience indirect effects including CO2 reallocation away from EOR that shortens expected oil production tails and reduces royalty cash flow, plus operational complexity from Class VI permitting that can affect well workover timing.

**Valuation Considerations**: Mineral interest valuations on Jackson Dome-supplied CO2 floods require explicit modeling of the EOR-versus-sequestration scenario tradeoff as operators weigh continuing oil production against higher-value permanent sequestration opportunities.

## Related Topics

- [45Q Tax Credits for Mineral Owners](https://www.buckheadenergy.com/45q-tax-credits-mineral-owners) — broader 45Q tax credit context across multiple U.S. CCS regions
- [Wabash Valley Resources CCS Hub](https://www.buckheadenergy.com/wabash-valley-resources-ccs) — Indiana carbon capture and sequestration hub overview
- [Class VI Injection Wells Overview](https://www.buckheadenergy.com/class-vi-injection-wells) — regulatory framework for CO2 sequestration wells
- [How to Sell Mineral Rights](https://www.buckheadenergy.com/how-to-sell-mineral-rights) — step-by-step guide to the mineral rights sales process
- [What Are My Minerals Worth?](https://www.buckheadenergy.com/what-are-my-minerals-worth) — valuation methodology and factors
- [Should I Sell Mineral Rights?](https://www.buckheadenergy.com/should-i-sell-mineral-rights) — decision framework for mineral owners
- [Beginner's Guide to Mineral Rights](https://www.buckheadenergy.com/beginners-guide) — foundational mineral rights concepts
- [Getting a Fair Price for Mineral Rights](https://www.buckheadenergy.com/getting-fair-price) — negotiation and valuation transparency

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