42-227-33028

Final Completion

CLAY H. R.

HOWARD County · District 8 · ENDEAVOR ENERGY RESOURCES L.P. · HOWARD-GLASSCOCK (GLORIETA)

Permits

Max Depth

3,600 ft

First Permit

1983-02-16

Latest Activity

1988-07-19

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1998-05-29

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Production: GRAYROCK ENERGY II, LLC (reported 2026-04)

EWA / Permit operator mismatch

Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Permit: EXXON CORP.

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

HOWARD County disposal market →

H-1 Injection Active UIC #000067432 permitted 1995-05-17

Permitted Volume

1,000 bbl/d

Max Pressure

1,120 psi

Injection Interval

2,240–3,187 ft

Injected (12mo)

332 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-12-01)

Operator History

Chain of Custody

ENDEAVOR ENERGY RESOURCES L.P. 2011-2021→ OAK PRAIRIE OPERATIONS, LLC 2021-2024→ 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 (4) Elevation 2,689 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SEVEN RIVERS	1,462 ft	+1,227 ft
SAN ANDRES	2,233 ft	+456 ft
GLORIETA	2,739 ft	-50 ft
CLEARFORK (Clear Fork)	2,861 ft	-172 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
2,240–2,615 ft	Perforated
2,240–3,131 ft	Perforated
2,240–3,187 ft	Perforated
2,847–3,187 ft	Perforated
2,894–3,129 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	357 ft	300 sx
2.375"	2,890 ft	—
4.5"	3,303 ft	780 sx

Permit History (2)

#349014 Recompletion Final Completion

CLAY, H. R. · 3,600 ft

1988-07-19

#186154 Drill Final Completion

CLAY, H. R. · 3,300 ft

1983-02-16

Spud 1983-03-08

Applications (2)

#349014 A EXXON CORP.

received 1988-07-18

#186154 A EXXON CORP.

received 1983-02-16

Records & Logs

6 completion filings on record.

W-2/G-1 1998-06-11

W-2/G-1 2000-10-18

W-2/G-1 1989-01-30

W-2/G-1 1983-04-26

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 HOWARD County.

Well Details

Well Number: 41
Max Depth: 3,600 ft
Drill Type: Vertical
County: HOWARD
District: 8
Operator: ENDEAVOR ENERGY RESOURCES L.P.
Completed: 1998-05-29

Operator

Name: ENDEAVOR ENGY RES L.P
Location: MIDLAND
P-5 Status: Active (filed 2026-06-12)
Cum Oil (all leases): 507,205,629 bbl
Cum Gas (all leases): 70,424,421 mcf
Total Permits: 6,190