TL;DR: Efs Midstream LLC has 3 oil and gas drilling permits on file; the most recent was filed 2017-10-10. This page lists permit dates, API numbers, counties, target formations, and lateral lengths. Data current as of 2026-05-04.
3 total permits on file, most recent 2017-10-10.
Permits Filed
Permit / Spud Date
API Number
County
Well Name
Formation
Lateral Length (ft)
2017-10-10
4229735905
LIVE OAK
RECTIFIER SWETLICK 0 1SW
Olmos
128
2016-08-30
4229735851
LIVE OAK
RECTIFIER SINOR' 0 1SR
Olmos
—
2016-08-30
4201335397
ATASCOSA
RECTIFIER TOM EAST 0 1TE
Austin Chalk
—
Key Takeaways
Operator: Efs Midstream LLC.
Permit volume: 3 permits on file (most recent: 2017-10-10).
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 Efs Midstream LLC's acreage.