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42-393-31414

TEMP ABANDONED

VOLLMERT J.C.

ROBERTS County · District 10 · MMGL TXPH LLC · MENDOTA NW. (GRANITE WASH)

Permits

1

Max Depth

10,950 ft

First Permit

1998-05-27

Latest Activity

1998-05-27

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1998-12-21

Shut-In

—

Plugged

—

P-5 Org Status: Active

!

EWA / Production operator mismatch

Scheduling: MMGL TXPH LLC ≠ Production: BLACKBEARD OPERATING, LLC (reported 2022-06)

!

EWA / Permit operator mismatch

Scheduling: MMGL TXPH LLC ≠ Permit: CRESCENDO RESOURCES, L.P.

Resolved via: scheduling → MMGL TXPH LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1998-12

Last Production

2026-07

Operator History

Chain of Custody

CRESCENDO RESOURCES, L.P. 1998-2000→ AMOCO PRODUCTION COMPANY 2000-2001→ BP AMERICA PRODUCTION COMPANY 2002-2020→ BLACKBEARD OPERATING, LLC 2020-2022

Lease Production

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

Gas
production & DCA →

Formation Tops (1) Elevation 2,944 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
DGLS7,060 ft-4,116 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
10,710–10,735 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"2,375 ft1,000 sx
3.5"10,898 ft340 sx

Permit History (1)

#476503 Drill Final Completion

VOLLMERT, J. C. · 10,950 ft

1998-05-27

Spud 1998-11-06

Applications (1)

#476503 A CRESCENDO RESOURCES, L.P.
received 1998-05-21

Records & Logs

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

W-2/G-1 1999-02-12 log on file
W-2/G-1 1999-02-25
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 ROBERTS County.

Well Details

Well Number
502
Max Depth
10,950 ft
Drill Type
Vertical
County
ROBERTS
District
10
Operator
MMGL TXPH LLC
Completed
1998-12-21

Operator

Location
DALLAS
P-5 Status
Active (filed 2025-07-24)
Cum Oil (all leases)
220,131 bbl
Cum Gas (all leases)
64,022,648 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
10