← Wells

42-163-32935

Horizontal

DILLEY UNIT B

FRIO County · District 1 · FIRST ROCK INC. · PEARSALL (AUSTIN CHALK)

Permits

2

Max Depth

9,500 ft

First Permit

1990-12-06

Latest Activity

1990-12-06

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1991-01-24

Shut-In

—

Plugged

1994-08-09

!

EWA / Production operator mismatch

Scheduling: FIRST ROCK INC. ≠ Production: STONEBURNER EXPLORATION, INC. (reported 1993-03)

!

EWA / Permit operator mismatch

Scheduling: FIRST ROCK INC. ≠ Permit: RGR PRODUCTION

Resolved via: scheduling → FIRST ROCK INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

1994-10

Operator History

originally filed by RGR PRODUCTION — asset transferred

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil
production & DCA →

Formation Tops (2) Elevation 521 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
ANACACHO 6,745 ft-6,224 ft
AUSTIN CHALK 7,005 ft-6,484 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (1)

IntervalType
6,755–9,752 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"715 ft135 sx
5.5"6,772 ft200 sx

Permit History (2)

#381862 Drill

DILLEY UNIT -B- · 9,500 ft

1990-12-06

Spud 1990-12-04

#381862 Drill Final Completion

DILLEY UNIT "B" · 9,500 ft

1990-12-06

Applications (2)

#381862 A RGR PRODUCTION
received 1991-01-31
#381862 A RGR PRODUCTION
received 1990-12-04

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 1991-01-30 log on file
W-2/G-1 1991-04-04
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in FRIO County.

Well Details

Well Number
1
Max Depth
9,500 ft
Drill Type
Horizontal
County
FRIO
District
1
Operator
FIRST ROCK INC.
Completed
1991-01-24

Operator

Location
CORPUS CHRI, ST
P-5 Status
Active (filed 2026-04-06)
Cum Oil (all leases)
1,171,762 bbl
Cum Gas (all leases)
823,441 mcf
Activities
CSGD/P, G/PUR, OPRS/O
Total Permits
68