TL;DR: Sierra Resources Inc has 2 oil and gas drilling permits on file; the most recent was filed 2018-10-17. This page lists permit dates, API numbers, counties, target formations, and lateral lengths. Data current as of 2026-05-04.
2 total permits on file, most recent 2018-10-17.
Permits Filed
Permit / Spud Date
API Number
County
Well Name
Formation
Lateral Length (ft)
2018-10-17
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LA SALLE
SR BREGMAN 2H
—
—
2017-10-26
4231136782
MCMULLEN
OTTO 1H
Olmos
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Key Takeaways
Operator: Sierra Resources Inc.
Permit volume: 2 permits on file (most recent: 2018-10-17).
What's listed: Permit and spud date, API number, county, well name, target formation, and lateral length per record.
Mineral owners:Valor's mineral management tracks operator permit activity by tract for owners with interests under Sierra Resources Inc's acreage.