42-173-31968

Final Completion

RYLEE

GLASSCOCK County · District 8 · ENDEAVOR ENERGY RESOURCES L.P. · DEWEY LAKE S. (WOLFCAMP)

Permits

Max Depth

10,200 ft

First Permit

1986-11-25

Latest Activity

2016-03-21

Lifespan

29 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-02-19

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: ENDEAVOR ENERGY RESOURCES L.P. ≠ Production: DIAMONDBACK E&P LLC (reported 2026-04)

Resolved via: production → DIAMONDBACK E&P LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

PALO PETROLEUM, INC. 1993-2006→ ENDEAVOR ENERGY RESOURCES L.P. 2006-2020→ DIAMONDBACK E&P LLC 2020-2026→ DE IV OPERATING, LLC 2024-2025

Lease Production

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

Formation Tops (6) Elevation 2,703 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
ANHYDRITE	1,306 ft	+1,397 ft
YATES	2,014 ft	+689 ft
SAN ANDRES	3,180 ft	-477 ft
SPRABERRY	6,400 ft	-3,697 ft
WOLFCAMP	7,972 ft	-5,269 ft
STRAWN	10,003 ft	-7,300 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
7,519–8,984 ft	Perforated
8,420–8,450 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	462 ft	500 sx
9.625"	3,300 ft	200 sx
5.5"	8,595 ft	425 sx

Permit History (2)

#814217 Field Transfer Final Completion

RYLEE (P) · 10,189 ft

2016-03-21

Spud 2015-09-19

#323101 Drill Final Completion

RYLEE · 10,200 ft

1986-11-25

Applications (2)

#814217 A ENDEAVOR ENERGY RESOURCES L.P.

received 2016-03-04

#323101 A PALO PETROLEUM, INC.

received 1986-11-14

Records & Logs

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

W-2/G-1 2016-01-19 log on file

W-2/G-1 1987-03-09 log on file

W-2/G-1 1987-03-16

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: 10,200 ft
Drill Type: Vertical
County: GLASSCOCK
District: 8
Operator: ENDEAVOR ENERGY RESOURCES L.P.
Completed: 1987-02-19

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