42-479-36360

PRODUCING

RANCHO BLANCO

WEBB County · District 4 · COLUMBUS ENERGY LLC · BASHARA-HEREFORD (7300)

Permits

2

Max Depth

8,700 ft

First Permit

1995-08-31

Latest Activity

1995-08-31

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1995-10-14

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: COLUMBUS ENERGY LLC ≠ Permit: SANCHEZ-O'BRIEN OIL & GAS CORP.

Resolved via: productionCOLUMBUS ENERGY, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1995-10

Last Production

2026-07

Lease Production

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

Formation Tops (3) Elevation 453 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
CARRIZO WILCOX (Carrizo)3,360 ft-2,907 ft
LOWER WILCOX (Wilcox)5,450 ft-4,997 ft
LOBO6,700 ft-6,247 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
7,312–7,354 ftPerforated

Casing (3)

SizeSet DepthCement
9.625"1,030 ft350 sx
7"5,786 ft320 sx
4.5"7,700 ft230 sx

Permit History (2)

Applications (2)

#439503 A SANCHEZ-O'BRIEN OIL & GAS CORP.
received 1995-11-13
#439503 A SANCHEZ-O'BRIEN OIL & GAS CORP.
received 1995-08-31

Records & Logs

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

W-2/G-1 1995-10-26 log on file
W-2/G-1 1996-02-06

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 WEBB County.

Well Details

Well Number
3
Max Depth
8,700 ft
Drill Type
Vertical
County
WEBB
District
4
Completed
1995-10-14

Operator

Location
HOUSTON
P-5 Status
X (filed 2026-06-02)
Cum Oil (all leases)
47,050 bbl
Cum Gas (all leases)
153,585,182 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
51