# Pearsall Shale Mineral Rights in South Texas

**TL;DR:** The Pearsall Shale is a Lower Cretaceous organic-rich shale formation underlying South and South-Central Texas, sitting beneath the Eagle Ford Shale and Austin Chalk. After decades of being recognized primarily as a source rock, the Pearsall is experiencing renewed commercial interest in 2025–2026, with operators like EOG Resources and Formentera Partners conducting horizontal de-risking activity using improved completion designs. Buckhead Energy actively acquires mineral and royalty interests across the Pearsall producing trend.

## Key Takeaways

- The Pearsall Shale is an Aptian-age (approximately 120 million years old) Lower Cretaceous formation at depths of 7,000–11,000 feet TVD across the producing trend
- The formation consists of organic-rich black shale and marl with multiple internal benches, positioned beneath both the Eagle Ford Shale and Austin Chalk
- Primary activity counties include Frio, La Salle, Atascosa, McMullen, and Maverick in South Texas, with step-out testing extending toward the Austin Chalk fairway
- EOG Resources and Formentera Partners are leading 2025–2026 horizontal de-risking efforts using modern completion techniques
- Many Pearsall locations offer stacked-pay potential with the overlying Eagle Ford and Austin Chalk formations
- Buckhead Energy purchases Pearsall Shale mineral rights directly with no broker commissions, listing fees, or auction premiums
- The play represents an emerging unconventional target after decades of being considered primarily a source rock rather than a producing reservoir

## Page Highlights

**Formation Overview:** The Pearsall Shale is a Lower Cretaceous unconventional shale underlying portions of South Texas. While recognized as a hydrocarbon source rock for decades, commercial horizontal completion was challenging through the 2010s until recent improvements in completion design renewed operator interest.

**Geological Characteristics:** The formation dates to the Aptian age of the Lower Cretaceous period (approximately 120 million years ago). It consists of organic-rich black shale and marl with multiple internal benches, typically found at depths of 7,000–11,000 feet true vertical depth. The Pearsall sits stratigraphically beneath both the Eagle Ford Shale and Austin Chalk, creating stacked-pay opportunities.

**Active Counties:** Primary Pearsall activity occurs in Frio County (the formation's namesake area), La Salle County, Atascosa County, McMullen County, and Maverick County. Step-out testing is extending the play toward Brazos, Burleson, and Grimes counties along the Austin Chalk fairway.

**Current Operator Activity:** EOG Resources and Formentera Partners are conducting active horizontal de-risking programs in 2025–2026, applying modern unconventional completion techniques to unlock the formation's commercial potential.

**Mineral Rights Acquisition:** Buckhead Energy actively purchases mineral and royalty interests across the Pearsall Shale producing trend, offering direct transactions without intermediary fees.

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**About Buckhead Energy:** Buckhead Energy is a BBB-accredited direct buyer of mineral and royalty interests with 18+ years of experience across 33 states. The company has been purchasing mineral rights directly since 2007.

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