42-461-03452

Final Completion

JACOBS LIVESTOCK

UPTON County · District 7 · ENDEAVOR ENERGY RESOURCES L.P. · HELUMA (ELLENBURGER)

Permits

Max Depth

10,660 ft

First Permit

1986-09-26

Latest Activity

2025-07-15

Lifespan

39 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1986-11-18

Shut-In

—

Plugged

2009-07-29

EWA / Permit operator mismatch

Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Permit: TXP, INCORPORATED

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

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

UPTON County disposal market →

H-1 Injection Active UIC #000127227 permitted 2025-06-05

Permitted Volume

500 bbl/d

Max Pressure

1,737 psi

Injection Interval

3,474–3,496 ft

Injected (12mo)

—

H-1 Injection Plugged 2009-08-14 UIC #000082140 permitted 1995-01-26

Permitted Volume

500 bbl/d

Max Pressure

1,000 psi

Injection Interval

7,800–10,641 ft

Injected (12mo)

—

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Operator History

originally filed by TXP, INCORPORATED — asset transferred

Lease Production

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

Formation Tops (13) Elevation 2,922 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
RUSTLER	1,335 ft	+1,587 ft
SAN ANDRES	3,023 ft	-101 ft
SAN ANDRES - SALTWATER FLOW (San Andres)	3,386 ft	-464 ft
DEVONIAN	8,503 ft	-5,581 ft
ELLENBURGER	10,405 ft	-7,483 ft
DEVONIAN	—	—
ELLENBURGER	—	—
FUSSELMAN	—	—
GRAYBURG	—	—
SPRABERRY	—	—
STRAWN	—	—
WOLFCAMP	—	—
YATES	—	—

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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section

✓ 42-461-40802 CRUNCHY SNICKERS · CAPSTONE NATURAL RES II, LLC

1.2 mi

Yates 2,137'Grayburg 2,833'San Andres 3,048'Fusselman —Wolfcamp —Strawn —Ellenburger —Spraberry —Devonian —

✓ 42-461-40735 SNICKERS B · CAPSTONE NATURAL RES II, LLC

1.6 mi

Yates 2,122'Grayburg 2,661'San Andres 3,059'Fusselman —Wolfcamp —Strawn —Ellenburger —Spraberry —Devonian —

✓ 42-461-40805 MOUNDS 95-2 · CAPSTONE NATURAL RES II, LLC

2.3 mi

Yates 2,225'Grayburg 2,946'San Andres 3,119'Ellenburger —Spraberry —Fusselman —Devonian —Wolfcamp —Strawn —

✓ 42-461-40779 GOODBAR 89 · CAPSTONE NATURAL RES II, LLC

2.6 mi

Yates 2,137'Grayburg 2,844'San Andres 3,083'Wolfcamp —Ellenburger —Strawn —Fusselman —Spraberry —Devonian —

✓ 42-461-40724 GOODBAR 89 · CAPSTONE NATURAL RES II, LLC

3.1 mi

Yates 2,100'Grayburg 2,836'San Andres 3,040'Wolfcamp —Strawn —Spraberry —Devonian —Fusselman —Ellenburger —

✓ 42-461-40617 GOODBAR 89 · SILVER CREEK OIL & GAS, LLC

3.2 mi

Yates 2,100'Grayburg 2,861'San Andres 3,060'Wolfcamp —Fusselman —Strawn —Ellenburger —Spraberry —Devonian —

✓ 42-461-42761 SCOTT THOMAS · CUSTER & WRIGHT OPERATING, INC.

3.5 mi

Yates 2,790'Grayburg 3,980'San Andres 4,110'Spraberry 5,820'Wolfcamp 7,425'Strawn 8,475'Ellenburger —Devonian —Fusselman —

✓ 42-461-32612 SHIRK, J.H. ESTATE · POGO PRODUCING CO.

5.3 mi

Rustler 1,530'Grayburg 3,991'San Andres 4,139'Leonard 4,940'Dean 7,470'Wolfcamp 7,568'Cisco 8,600'Strawn 9,164'Bend 9,485'

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (3)

Interval	Type
3,474–3,496 ft	Perforated
8,566–9,178 ft	Perforated
10,405–10,492 ft	Perforated

Casing (6)

Size	Set Depth	Cement
13.375"	410 ft	410 sx
13.375"	410 ft	410 sx
9.625"	3,150 ft	400 sx
9.625"	3,150 ft	1,400 sx
7"	10,660 ft	1,000 sx
7"	10,660 ft	1,000 sx

Permit History (2)

#909043 Reenter Final Completion

JACOBS LIVESTOCK · 3,600 ft

2025-07-15

Spud 2025-08-27

#320506 Reenter Final Completion

JACOBS LIVESTOCK · 10,660 ft

1986-09-26

Applications (2)

#909043 A TXP, INCORPORATED

received 2025-07-02

#320506 A TXO PRODUCTION CORP.

received 1986-09-12

Records & Logs

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

W-2/G-1 2025-09-24

W-2/G-1 1986-12-03 log on file

W-2/G-1 1986-12-05

W-2/G-1 1970-09-10

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.

Google Maps → Explorer Map →

Lat 31.297374

Lon -102.245159

Well Details

Well Number: 3498S
Max Depth: 10,660 ft
Drill Type: Vertical
County: UPTON
District: 7
Operator: ENDEAVOR ENERGY RESOURCES L.P.
Completed: 1986-11-18

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