42-173-30891

Final Completion

HUBBARD -18-

GLASSCOCK County · District 8 · ENDEAVOR ENERGY RESOURCES L.P. · SPRABERRY (TREND AREA)

Permits

Max Depth

11,000 ft

First Permit

1977-10-31

Latest Activity

1999-02-18

Lifespan

21 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1977-11-25

Shut-In

—

Plugged

2016-10-19

EWA / Permit operator mismatch

Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Permit: STEPHENS, AUTRY C.

Resolved via: scheduling → ENDEAVOR ENERGY RESOURCES L.P.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

SOUTHWEST ROYALTIES, INC. 1993-1995→ WJC, INC. 1995-1997→ STEPHENS, AUTRY C. 1998-2000→ ENDEAVOR ENERGY RESOURCES L.P. 2000-2023

Lease Production

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

Formation Tops (3) Elevation 2,682 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
UPPER SPRABERRY (Spraberry)	6,189 ft	-3,507 ft
LOWER SPRABERRY (Spraberry)	7,002 ft	-4,320 ft
DEAN	7,598 ft	-4,916 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
9,898–9,979 ft	Perforated
?–7,736 ft	Perforated

Casing (5)

Size	Set Depth	Cement
9.625"	464 ft	300 sx
9.625"	464 ft	300 sx
4.5"	7,800 ft	850 sx
4.5"	7,800 ft	900 sx
2.875"	10,500 ft	90 sx

Permit History (2)

#482708 Recompletion Final Completion

HUBBARD "18" · 11,000 ft

1999-02-18

Spud 1999-02-26

#11022 Drill

HUBBARD · 7,800 ft

1977-10-31

Applications (2)

#482708 A STEPHENS, AUTRY C.

received 1999-02-16

#11022 A TRI-SERVICE DRILLING CO.

received 1977-10-31

Records & Logs

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

W-2/G-1 2000-06-15 log on file

W-2/G-1 1978-04-26

W-2/G-1 1978-04-26 log on file

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 GLASSCOCK County.

Well Details

Well Number: 1
Max Depth: 11,000 ft
Drill Type: Vertical
County: GLASSCOCK
District: 8
Operator: ENDEAVOR ENERGY RESOURCES L.P.
Completed: 1977-11-25

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