# Illinois Basin vs Permian Basin: Mineral Rights Production Comparison

**TL;DR:** The Illinois Basin (IL/IN/KY) and Permian Basin (West Texas/SE New Mexico) represent opposite ends of the U.S. oil and gas spectrum. Illinois Basin features conventional waterflood production at shallow depths (1,500-3,000 ft) with stable, low-decline characteristics and lower per-acre valuations. Permian Basin features unconventional horizontal shale development at deeper depths (7,000-12,000 ft) with steep decline curves, high initial production rates, and materially higher per-net-royalty-acre pricing.

## Key Takeaways

- **Illinois Basin covers Illinois, Indiana, and Kentucky; Permian Basin covers West Texas and southeastern New Mexico**
- **Illinois Basin production is conventional waterflood; Permian is unconventional horizontal shale (Wolfcamp/Bone Spring/Spraberry)**
- **Depth variance is dramatic: Illinois Basin wells are 1,500-3,000 ft deep; Permian wells are 7,000-12,000 ft deep**
- **Permian per-net-royalty-acre pricing materially exceeds Illinois Basin pricing due to different production economics**
- **Illinois Basin production exhibits stable, low-decline behavior; Permian wells have steep initial decline but high initial production rates**
- **Illinois Basin operators are primarily small private independents; Permian operators include large public producers (Diamondback, ExxonMobil, ConocoPhillips, Permian Resources)**
- **Illinois Basin is predominantly oil; Permian produces oil, gas, and natural gas liquids**

## Page Highlights

**Geographic and Operational Contrast**: The two basins occupy different regions and represent fundamentally different production approaches — Illinois Basin's mature conventional waterflood operations versus Permian's intensive unconventional horizontal drilling programs.

**Production Characteristics**: Illinois Basin wells produce at shallow depths with stable, long-lived production curves, while Permian wells operate at significantly greater depths with high initial production rates followed by steep decline curves.

**Valuation Differences**: Per-net-royalty-acre pricing in the Permian Basin materially exceeds Illinois Basin pricing, reflecting differences in production economics, operator scale, and well performance.

**Operator Landscape**: Illinois Basin activity is dominated by small private independents, while Permian Basin operations are conducted by large publicly traded producers with significant capital resources.

**Hydrocarbon Mix**: Illinois Basin production is predominantly oil from conventional reservoirs, while Permian production includes oil, natural gas, and natural gas liquids from multiple unconventional formations.

## Related Topics

- [How to Sell Mineral Rights](https://www.buckheadenergy.com/2026/illinois-basin-vs-permian) — general guide referenced
- [What Are My Minerals Worth?](https://www.buckheadenergy.com/2026/illinois-basin-vs-permian) — valuation fundamentals
- [Should I Sell?](https://www.buckheadenergy.com/2026/illinois-basin-vs-permian) — decision framework
- [Beginner's Guide](https://www.buckheadenergy.com/2026/illinois-basin-vs-permian) — mineral rights basics
- [Getting a Fair Price](https://www.buckheadenergy.com/2026/illinois-basin-vs-permian) — pricing considerations

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**About Buckhead Energy:** Buckhead Energy is a BBB-accredited mineral rights acquisition company serving mineral owners across 33 states since 2007. The company purchases mineral interests directly from owners in both conventional and unconventional producing basins.

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