42-059-33069

Final Completion

GUITAR B

CALLAHAN County · District 7 · MARTIN OIL CO. · CALLAHAN COUNTY REGULAR

Permits

Max Depth

1,800 ft

First Permit

1981-03-13

Latest Activity

2007-07-27

Lifespan

26 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1981-07-11

Shut-In

—

Plugged

1986-12-30

EWA / Production operator mismatch

Scheduling: MARTIN OIL CO. ≠ Production: GRAYROCK ENERGY II, LLC (reported 2026-04)

EWA / Permit operator mismatch

Scheduling: MARTIN OIL CO. ≠ Permit: L.C.S. PRODUCTION COMPANY

Resolved via: production → GRAYROCK ENERGY II, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2008-04

Last Production

2026-07

Operator History

Chain of Custody

L.C.S. PRODUCTION COMPANY 2008-2009→ 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 (1) Elevation 1,678 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
COOK SAND	1,672 ft	+6 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 (2)

Interval	Type
1,672–1,685 ft	Perforated
1,673–1,678 ft	Perforated

Casing (2)

Size	Set Depth	Cement
4.5"	1,670 ft	185 sx
2.375"	1,677 ft	—

Permit History (2)

#642512 Reenter Final Completion

GUITAR "79" · 1,678 ft

2007-07-27

Spud 2008-04-17

#112164 Drill Final Completion

GUITAR "B" · 1,800 ft

1981-03-13

Applications (2)

#642512 A L.C.S. PRODUCTION COMPANY

received 2007-07-13

#112164 A MARTIN OIL CO.

received 1981-03-13

Records & Logs

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

W-2/G-1 2008-06-23 log on file

W-2/G-1 2008-10-08

W-2/G-1 1981-08-07

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 CALLAHAN County.

Well Details

Well Number: 1RE
Max Depth: 1,800 ft
Drill Type: Vertical
County: CALLAHAN
District: 7
Operator: MARTIN OIL CO.
Completed: 1981-07-11

Operator

Name: MARTIN OIL CO
Location: ASPERMONT
P-5 Status: Inactive (filed 1997-07-01)
Cum Oil (all leases): 181,506 bbl
Cum Gas (all leases): — mcf
Total Permits: 77