42-353-32717

Final Completion

COX E. S.

NOLAN County · District 7 · GRAYROCK ENERGY II LLC · LAKE TRAMMEL (STRAWN REEF)

Permits

Max Depth

7,200 ft

First Permit

2000-12-07

Latest Activity

2005-10-11

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2001-04-28

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: GRAYROCK ENERGY II LLC ≠ Permit: L.C.S. PRODUCTION COMPANY

Resolved via: production → GRAYROCK ENERGY II, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Inactive UIC #000099634 permitted 2008-09-16

Permitted Volume

1,000 bbl/d

Max Pressure

2,625 psi

Injection Interval

5,250–5,450 ft

Injected (12mo)

—

Operator History

Chain of Custody

ELDORADO OPERATING CO. 1993-1995→ BROTHERS OPERATING COMPANY INC. 1995-2003→ SHENANDOAH PETROLEUM CORPORATION 2003-2004→ L.C.S. PRODUCTION COMPANY 2004-2009→ PLANTATION OPERATING, LLC 2009-2011→ MERIT ENERGY COMPANY 2011-2017→ ROVER PETROLEUM OPERATING, LLC 2017-2023→ GRAYROCK ENERGY II, LLC 2024-2026

Lease Production

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

Formation Tops (5) Elevation 2,427 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
KING SAND	4,440 ft	-2,013 ft
CANYON SD (Canyon)	5,310 ft	-2,883 ft
CANYON	5,312 ft	-2,885 ft
STRAWN	6,254 ft	-3,827 ft
ELLENBURGER	6,890 ft	-4,463 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 (5)

Interval	Type
5,312–5,317 ft	Perforated
5,322–5,327 ft	Perforated
5,336–5,342 ft	Perforated
6,290–6,299 ft	Perforated
6,488–6,497 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	365 ft	350 sx
5.5"	6,890 ft	830 sx

Permit History (2)

#607565 Reenter Final Completion

LAKE TRAMMEL UNIT · 6,240 ft

2005-10-11

#502772 Drill Final Completion

COX, E. S. · 7,200 ft

2000-12-07

Spud 2001-01-13

Applications (2)

#607565 A L.C.S. PRODUCTION COMPANY

received 2005-10-07

#502772 A BROTHERS OPERATING COMPANY INC.

received 2000-12-07

Records & Logs

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

W-2/G-1 2005-03-09 log on file

W-2/G-1 2005-10-12

W-2/G-1 2001-05-22 log on file

W-2/G-1 2004-01-29

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: 109
Max Depth: 7,200 ft
Drill Type: Vertical
County: NOLAN
District: 7
Operator: GRAYROCK ENERGY II LLC
Completed: 2001-04-28

Operator

Name: GRAYROCK ENERGY II, LLC
Location: FORT WORTH
P-5 Status: Active (filed 2025-10-16)
Cum Oil (all leases): 1,537,532 bbl
Cum Gas (all leases): 35,084 mcf
Activities: OPRS/G, OPRS/O