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GROUP 4000 UNIT A

NOLAN County · District 7 · WINCHESTER ENERGY LLC · GROUP (4000)

Permits

1

Max Depth

4,400 ft

First Permit

1991-04-29

Latest Activity

1991-04-29

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1991-05-27

Shut-In

—

Plugged

—

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: WINCHESTER ENERGY LLC ≠ Permit: O & G ENERGY, INC.

Resolved via: scheduling → WINCHESTER ENERGY LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Inactive UIC #000124712 permitted 2021-05-20

Permitted Volume

100 bbl/d

Max Pressure

1,850 psi

Injection Interval

3,950–4,050 ft

Injected (12mo)

—

Operator History

Chain of Custody

O & G ENERGY, INC. 1993-1996→ F&H ENERGY,LTD. 1996-1997→ ROBERTSON RESOURCES, INC. 1997-2001→ XERIC OIL & GAS CORPORATION 2001-2003→ ALEGRE ENERGY, INC. 2003-2006→ ALEGRE ENERGY OPERATING, LP 2004-2005→ DELCO OPERATING COMPANY LP 2006-2007→ MIDWESTERN ENERGY 2007-2015→ W & W PRODUCTION, LLC 2015-2017→ WINCHESTER ENERGY, LLC 2022-2024

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 (3) Elevation 2,293 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
BASE COLEMAN JUNCTION (Coleman Junction)3,022 ft-729 ft
SADDLE CREEK 3,880 ft-1,587 ft
COOK3,968 ft-1,675 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
3,974–3,982 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"251 ft150 sx
5.5"4,197 ft345 sx

Permit History (1)

#387007 Drill Final Completion

GROUP 4000 UNIT · 4,400 ft

1991-04-29

Spud 1991-05-17

Applications (1)

#387007 A O & G ENERGY, INC.
received 1991-04-22

Records & Logs

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

W-2/G-1 1991-06-10 log on file
W-2/G-1 1991-06-17
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 NOLAN County.

Well Details

Well Number
16B
Max Depth
4,400 ft
Drill Type
Vertical
County
NOLAN
District
7
Operator
WINCHESTER ENERGY LLC
Completed
1991-05-27

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-03-23)
Cum Oil (all leases)
381,495 bbl
Cum Gas (all leases)
50,958 mcf
Activities
OPRS/G, OPRS/O
Total Permits
47