42-283-32310

Final Completion Horizontal

MUMME RANCH

LA SALLE County · District 1 · CARRIZO OIL & GAS INC. · EAGLEVILLE (EAGLE FORD)

Permits

4

Max Depth

10,500 ft

First Permit

2010-07-13

Latest Activity

2010-07-13

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2010-09-28

Shut-In

Plugged

!

EWA / Production operator mismatch

Scheduling: CARRIZO OIL & GAS INC. ≠ Production: VERDUN OIL EF II LLC (reported 2026-04)

Resolved via: productionVERDUN OIL EF II LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2010-09

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 395 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
AUSTIN CHALK 8,890 ft-8,495 ft
MIDDLE EAGLEFORD (Eagle Ford)9,567 ft-9,172 ft
LOWER EAGLEFORD (Eagle Ford)9,715 ft-9,320 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
10,311–15,295 ftPerforated

Casing (2)

SizeSet DepthCement
10.75"3,870 ft2,143 sx
5.5"15,422 ft2,785 sx

Permit History (4)

Applications (4)

#698825 A CARRIZO OIL & GAS, INC.
received 2011-07-15
#698825 A CARRIZO OIL & GAS, INC.
received 2011-01-12
#698825 A CARRIZO OIL & GAS, INC.
received 2010-12-08
#698825 A CARRIZO OIL & GAS, INC.
received 2010-07-12

Records & Logs

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

W-2/G-1 2011-01-21 log on file
W-2/G-1 2011-01-21 log on file

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 LA SALLE County.

Well Details

Well Number
12H
Max Depth
10,500 ft
Drill Type
Horizontal
County
LA SALLE
District
1
Completed
2010-09-28

Operator

Location
HOUSTON
P-5 Status
Inactive (filed 2021-01-07)
Cum Oil (all leases)
2,699,592 bbl
Cum Gas (all leases)
336,056,277 mcf
Total Permits
1,194