← Wells

42-391-32512

Final Completion

O BRIEN J. M.

REFUGIO County · District 2 · PRIMROSE OPERATING COMPANY · GRETA DEEP (5700 SEG. N)

Permits

6

Max Depth

7,000 ft

First Permit

2003-05-13

Latest Activity

2008-07-21

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2003-10-09

Shut-In

—

Plugged

2018-03-29

!

EWA / Production operator mismatch

Scheduling: PRIMROSE OPERATING COMPANY ≠ Production: DORCHESTER OPERATING COMPANY LLC (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: PRIMROSE OPERATING COMPANY ≠ Permit: CAMBRIAN MANAGEMENT, LTD.

Resolved via: production → DORCHESTER OPERATING COMPANY LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

DEWBRE PETROLEUM CORPORATION 1993-2002→ EXXON CORP. 1993-2000→ EXXON MOBIL CORPORATION 2000-2001→ PRIMROSE OPERATING COMPANY 2001-2007→ CAMBRIAN MANAGEMENT LTD 2007-2007→ CAMBRIAN MANAGEMENT, LTD. 2007-2010→ ACOCK/ANAQUA OPERATING CO., LP 2010-2020→ DORCHESTER OPERATING COMPANY LLC 2020-2026

Lease Production

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

Gas
production & DCA →
Gas
production & DCA →
Gas
production & DCA →
Oil
production & DCA →
Oil
production & DCA →

Formation Tops (1) Elevation 61 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
GRETA DEEP (5700 SEG. N.) (Greta)5,730 ft-5,669 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 (4)

IntervalType
2,432–2,434 ftPerforated
3,055–3,057 ftPerforated
4,352–4,354 ftPerforated
5,732–5,734 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,357 ft485 sx
5.5"6,020 ft710 sx

Permit History (6)

#665557 Recompletion Final Completion

O'BRIEN, J.M. · 3,550 ft

2008-07-21

Spud 2009-11-23

#650242 Recompletion Final Completion

O'BRIEN, J. M. · 3,550 ft

2008-01-04

Spud 2008-01-10

#557758 Recompletion

OBRIEN, J. M. · 4,400 ft

2005-02-15

#557758 Recompletion Final Completion

O'BRIEN, J. M. · 5,755 ft

2005-02-15

Spud 2005-02-14

#557758 Recompletion

OBRIEN, J. M. · 5,755 ft

2005-02-15

Spud 2005-02-14

#531231 Drill Final Completion

O'BRIEN, J. M. · 7,000 ft

2003-05-13

Spud 2003-05-16

Applications (6)

#665557 A CAMBRIAN MANAGEMENT, LTD.
received 2008-06-27
#650242 A CAMBRIAN MANAGEMENT, LTD.
received 2007-11-27
#557758 A PRIMROSE OPERATING COMPANY
received 2005-10-20
#557758 A PRIMROSE OPERATING COMPANY
received 2005-03-04
#557758 A PRIMROSE OPERATING COMPANY
received 2005-02-15
#531231 A PRIMROSE OPERATING COMPANY
received 2003-04-28

Records & Logs

11 completion filings on record · 4 with log images at RRC.

W-2/G-1 2005-03-02 log on file
W-2/G-1 2009-12-11 log on file
W-2/G-1 2010-03-09
W-2/G-1 2008-03-21 log on file
W-2/G-1 2008-04-18
W-2/G-1 2005-09-14

+5 more filings

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 REFUGIO County.

Well Details

Well Number
109
Max Depth
7,000 ft
Drill Type
Vertical
County
REFUGIO
District
2
Operator
PRIMROSE OPERATING COMPANY
Completed
2003-10-09

Operator

Location
WICHITA FAL, LS
P-5 Status
Inactive (filed 2008-12-05)
Cum Oil (all leases)
6,303,441 bbl
Cum Gas (all leases)
1,641,813 mcf
Total Permits
274