42-329-31025

Final Completion

BUCHANAN 35

MIDLAND County · District 8 · DIAMONDBACK E&P LLC · SPRABERRY (TREND AREA)

Permits

Max Depth

9,000 ft

First Permit

1981-09-17

Latest Activity

1998-02-19

Lifespan

16 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1998-04-02

Shut-In

—

Plugged

2013-10-23

EWA / Permit operator mismatch

Scheduling: DIAMONDBACK E&P LLC ≠ Permit: COX, JOHN L.

Resolved via: production → DIAMONDBACK E&P LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

MIDLAND County disposal market →

W-14 Disposal Plugged 2013-11-12 UIC #000087601 permitted 1998-03-25

Permitted Volume

1,000 bbl/d

Max Pressure

600 psi

Injection Interval

4,030–5,145 ft

Injected (12mo)

—

Operator History

Chain of Custody

COX, JOHN L. 1993-2003→ JM COX RESOURCES, L.P. 2003-2018→ DE3 OPERATING LLC 2018-2019→ ENDEAVOR ENERGY RESOURCES L.P. 2019-2024→ DIAMONDBACK E&P LLC 2025-2026

Lease Production

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

Oil

production & DCA →

Formation Tops (4) Elevation 2,669 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
REDBEDS	250 ft	+2,419 ft
UPPER SPRABERRY (Spraberry)	7,200 ft	-4,531 ft
LOWER SPRABERRY (Spraberry)	7,900 ft	-5,231 ft
DEAN	8,557 ft	-5,888 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
4,190–5,070 ft	Perforated
8,557–8,850 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	2,245 ft	1,100 sx
2.375"	8,410 ft	—
4.5"	8,900 ft	1,400 sx

Permit History (2)

#473184 Recompletion Final Completion

BUCHANAN "B" · 5,480 ft

1998-02-19

Spud 1998-03-27

#133466 Drill Final Completion

BUCHANAN "B" · 9,000 ft

1981-09-17

Applications (2)

#473184 A COX, JOHN L.

received 1998-02-10

#133466 A COX, JOHN L.

received 1981-09-17

Records & Logs

3 completion filings on record.

W-2/G-1 1998-06-10

W-2/G-1 1982-03-26

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 MIDLAND County.

Well Details

Well Number: 1X
Max Depth: 9,000 ft
Drill Type: Vertical
County: MIDLAND
District: 8
Operator: DIAMONDBACK E&P LLC
Completed: 1998-04-02

Operator

Name: DIAMONDBACK E&P LLC
Location: MIDLAND
P-5 Status: X (filed 2026-05-04)
Cum Oil (all leases): 986,290,193 bbl
Cum Gas (all leases): 41,995,553 mcf
Activities: GTHS/C, GTHS/O, OPRS/G, OPRS/O
Total Permits: 5,001