# Class VI Injection Wells and Carbon Capture Sequestration for Mineral Owners

**TL;DR:** EPA Class VI injection wells are the regulatory category for permanent underground CO2 storage in deep rock formations. The multi-year permitting process requires extensive geological analysis, landowner notification, and decades of post-injection monitoring. Mineral owners in active CCS areas may receive permit notices, see potential impacts on future drilling, and benefit from pore space leasing opportunities.

## Key Takeaways

- Class VI wells are EPA's specific underground injection control category designed exclusively for geologic CO2 sequestration, typically in saline aquifers thousands of feet below drinking water sources
- The permitting process spans multiple years and requires site characterization, Area of Review modeling, public notification to surface and mineral owners, and 50-year post-injection site care plans
- Mineral owners within the Area of Review must receive formal notification of Class VI permit applications and should review notices carefully with legal counsel
- Existing producing oil and gas operations are legally protected from Class VI permit interference, but future drilling or refracturing may face complications from long-term subsurface CO2 obligations
- Pore space owners can receive substantial lease payments for CO2 storage rights, with additional value tied to 45Q federal tax credit economics
- The most active Class VI permitting areas as of 2026 include Illinois Basin, Louisiana Gulf Coast, North Dakota, Wyoming, and Texas, with several states holding EPA primacy to issue permits directly

## Page Highlights

**Underground Injection Control Program Structure**: The EPA's UIC program regulates six categories of injection wells, with Class VI created specifically for permanent carbon dioxide sequestration in deep geological formations isolated from drinking water and producing hydrocarbon zones.

**Permitting Requirements**: Class VI permits demand site characterization studies, Area of Review modeling to map potential CO2 migration, public notification processes, construction and integrity testing, continuous operational monitoring, and Post-Injection Site Care typically lasting 50 years after well closure.

**Mineral Owner Considerations**: Owners within the Area of Review receive formal permit notices and should consult oil and gas attorneys; existing production is protected by regulation, but future development may face constraints; pore space owners may negotiate CCS lease agreements with significant economic value.

**Geographic Activity**: Illinois Basin leads Class VI activity with the Wabash Valley Resources hub and multiple Illinois projects, followed by Louisiana's Gulf Coast facilities, North Dakota and Wyoming as primacy states issuing their own permits, and Texas with multiple projects in development stages.

## Related Topics

- [How to Sell Mineral Rights](https://www.buckheadenergy.com/how-to-sell-mineral-rights)
- [What Are My Minerals Worth?](https://www.buckheadenergy.com/what-are-my-minerals-worth)
- [Should I Sell?](https://www.buckheadenergy.com/should-i-sell)
- [Beginner's Guide](https://www.buckheadenergy.com/beginners-guide)
- [Getting a Fair Price](https://www.buckheadenergy.com/getting-a-fair-price)
- [US Drilling Activity Index](https://www.buckheadenergy.com/us-drilling-activity-index)
- [Oil & Gas Market Data Hub](https://www.buckheadenergy.com/oil-gas-market-data-hub)

---

**About Buckhead Energy**  
Buckhead Energy is a BBB-accredited mineral rights acquisition company operating since 2007, purchasing mineral and royalty interests with company capital across 33 states. Get your free mineral valuation at [buckheadenergy.com/sell](https://www.buckheadenergy.com/sell).