Top Operators in the Thirty-One Carbonate-Chert (Texas)

The operators with the most well counts targeting the Thirty-One Carbonate-Chert formation in Texas:

#	Operator	Wells in Thirty-One Carbonate-Chert
1	Pioneer Natural Resources	8,701
2	Two P Partners LLC	3,857
3	Formentera Operations LLC	3,478
4	Scout Energy Management	3,281
5	Blackbeard Operating	3,177
6	Kinder Morgan Production	2,735
7	Diamondback Energy	2,572
8	Oxy	2,241
9	Cog Operating	1,849
10	Apache	1,818

Primary Texas Counties for the Thirty-One Carbonate-Chert

The Texas counties with the most Thirty-One Carbonate-Chert activity:

Upton, Crane, Ector, Pecos, Midland

Recent Thirty-One Carbonate-Chert Drilling Permits in Texas

The most recent 4 drilling permits filed for Thirty-One Carbonate-Chert wells in Texas:

Permit Date	Well	API	County	Operator	Lateral (ft)
2025-07-15	Jacobs Livestock 3498s	`4246103452`	Upton	Txp Incorporated	140
2025-02-10	Ursus Swd 1	`4246141550`	Upton	Bobcat Midstream LLC	138
2025-02-10	Lynx Swd 1	`4246141625`	Upton	Bobcat Midstream LLC	140
2025-02-10	Bobcat Swd 1	`4246141624`	Upton	Bobcat Midstream LLC	140

About the Thirty-One Carbonate-Chert Formation in Texas

The Thirty-One Carbonate-Chert is one of Texas's active oil and gas plays, with 76,706 wells on file across 2,133 distinct operators of record. Operators have filed 292 drilling permits targeting the Thirty-One Carbonate-Chert in the last 24 months — a measure of how active the play is right now versus its historical baseline.

For mineral owners with interests in Upton, Crane, Ector, Pecos, Midland, knowing whether your tract sits within an active Thirty-One Carbonate-Chert footprint is a foundational valuation question. Active formations with consistent permit flow command premium pricing; legacy formations with steady but declining production are valued differently.