TL;DR: Castlerock Resources Inc has 4 oil and gas drilling permits on file; the most recent was filed 2020-01-09. This page lists permit dates, API numbers, counties, target formations, and lateral lengths. Data current as of 2026-05-04.
4 total permits on file, most recent 2020-01-09.
Permits Filed
Permit / Spud Date
API Number
County
Well Name
Formation
Lateral Length (ft)
2020-01-09
4228336958
LA SALLE
STS A-1391 20H
Olmos
—
2020-01-09
4228336960
LA SALLE
STS A-1391 22H
Olmos
—
2020-01-09
4228336959
LA SALLE
STS A-1391 21H
Olmos
—
2018-07-18
4231136857
MCMULLEN
STS NORTH UNIT 6 2H
Olmos
—
Key Takeaways
Operator: Castlerock Resources Inc.
Permit volume: 4 permits on file (most recent: 2020-01-09).
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 Castlerock Resources Inc's acreage.