← Wells

42-329-35266

Final Completion

PERRO ROJO 26

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

Permits

2

Max Depth

12,000 ft

First Permit

2005-03-11

Latest Activity

2018-03-20

Lifespan

13 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2005-08-23

Shut-In

—

Plugged

2021-09-08

!

EWA / Production operator mismatch

Scheduling: DIAMONDBACK E&P LLC ≠ Production: ENDEAVOR ENERGY RESOURCES L.P. (reported 2024-01)

!

EWA / Permit operator mismatch

Scheduling: DIAMONDBACK E&P LLC ≠ Permit: ENDEAVOR ENERGY RESOURCES L.P.

Resolved via: scheduling → DIAMONDBACK E&P LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2001-04

Last Production

2026-07

Operator History

originally filed by ENDEAVOR ENERGY RESOURCES L.P. — asset transferred

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 (6) Elevation 2,719 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
UPPER SPRABERRY (Spraberry)7,715 ft-4,996 ft
LOWER SPRABERRY (Spraberry)8,290 ft-5,571 ft
UPPER WOLFCAMP (Wolfcamp)9,550 ft-6,831 ft
MIDDLE WOLFCAMP (Wolfcamp)9,950 ft-7,231 ft
STRAWN LIME (Strawn)10,669 ft-7,950 ft
ATOKA ——

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
✓ 42-329-45388 RIO BRAZOS 26-15 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 940'Santa Rosa 943'Rustler 1,650'Yates 2,671'Yates 2,680'Seven Rivers 3,034'Seven Rivers 3,045'Queen 3,844'Queen 3,850'Grayburg 4,507'Grayburg 4,520'San Andres 4,560' +7 more
✓ 42-329-45387 RIO BRAZOS 26-15 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 940'Rustler 1,650'Yates 2,671'Yates 2,680'Seven Rivers 3,034'Seven Rivers 3,045'Queen 3,844'Queen 3,850'Grayburg 4,507'Grayburg 4,520'San Andres 4,560'San Andres 4,959' +7 more
✓ 42-329-45386 RIO BRAZOS 26-15 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 940'Santa Rosa 943'Rustler 1,650'Yates 2,671'Yates 2,680'Seven Rivers 3,034'Seven Rivers 3,045'Queen 3,844'Queen 3,850'Grayburg 4,507'Grayburg 4,520'San Andres 4,560' +7 more
✓ 42-329-45385 RIO BRAZOS 26-15 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 940'Santa Rosa 943'Rustler 1,650'Yates 2,671'Yates 2,680'Seven Rivers 3,034'Seven Rivers 3,045'Queen 3,844'Queen 3,850'Grayburg 4,507'Grayburg 4,520'San Andres 4,560' +7 more
✓ 42-329-45384 RIO BRAZOS 26-15 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 940'Santa Rosa 943'Rustler 1,650'Yates 2,671'Yates 2,680'Seven Rivers 3,034'Seven Rivers 3,045'Queen 3,844'Queen 3,850'Grayburg 4,507'Grayburg 4,520'San Andres 4,560' +7 more
✓ 42-329-45383 RIO BRAZOS 26-15 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 940'Santa Rosa 943'Rustler 1,650'Yates 2,671'Yates 2,680'Seven Rivers 3,034'Seven Rivers 3,045'Queen 3,844'Queen 3,850'Grayburg 4,507'Grayburg 4,520'San Andres 4,560' +7 more
✓ 42-329-44345 RIO COMAL 26-31 D · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 1,000'Yates 2,607'Seven Rivers 2,955'Queen 3,785'Grayburg 4,600'Grayburg 4,602'San Andres 5,063'San Andres 5,078'Glorieta 6,056'Glorieta 6,061'Clear Fork 7,013'Clear Fork 7,017' +3 more
✓ 42-329-44350 RIO COMAL 26-31 E · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 1,000'Yates 2,607'Seven Rivers 2,955'Queen 3,785'Grayburg 4,602'San Andres 5,078'Glorieta 6,056'Clear Fork 7,017'Spraberry 7,731'PRECAMBRIAN (UNDIFFERENTIATED) —CAMBRIAN —Rustler —

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 (2)

IntervalType
8,294–10,663 ftPerforated
8,294–10,940 ftPerforated

Casing (3)

SizeSet DepthCement
12.75"295 ft350 sx
8.625"4,977 ft450 sx
4.5"11,012 ft1,270 sx

Permit History (2)

#837569 Recompletion Final Completion

PERRO ROJO '26' · 11,015 ft

2018-03-20

Spud 2005-07-21

#558757 Drill Final Completion

PERRO ROJO "26" · 12,000 ft

2005-03-11

Spud 2005-07-20

Applications (2)

#837569 A ENDEAVOR ENERGY RESOURCES L.P.
received 2018-03-15
#558757 A ENDEAVOR ENERGY RESOURCES L.P.
received 2005-03-08

Records & Logs

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

W-2/G-1 2018-05-10
W-2/G-1 2007-10-24 log on file
W-2/G-1 2007-12-12
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.

Google Maps → Explorer Map →
Lat 31.799019
Lon -102.043452

Well Details

Well Number
8
Max Depth
12,000 ft
Drill Type
Vertical
County
MIDLAND
District
8
Operator
DIAMONDBACK E&P LLC
Completed
2005-08-23

Operator

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
4,969