42-329-46847

PRODUCING Horizontal

RIO SAN MARCOS 36-45 UNIT 2A

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

Permits

1

Max Depth

10,049 ft

First Permit

2024-02-28

Latest Activity

2024-02-28

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-02-03

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

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

Resolved via: productionDIAMONDBACK E&P LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-03

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.

Formation Tops (20) Elevation 2,707 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,000 ft+1,707 ft
RUSTLER 1,614 ft+1,093 ft
YATES 2,609 ft+98 ft
YATES 2,614 ft+93 ft
SEVEN RIVERS 2,974 ft-267 ft
QUEEN 3,681 ft-974 ft
QUEEN 3,825 ft-1,118 ft
GRAYBURG 4,369 ft-1,662 ft
GRAYBURG 4,384 ft-1,677 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)5,121 ft-2,414 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)5,161 ft-2,454 ft
GLORIETA 5,629 ft-2,922 ft
GLORIETA 5,862 ft-3,155 ft
CLEARFORK (Clear Fork)6,767 ft-4,060 ft
CLEARFORK (Clear Fork)6,781 ft-4,074 ft
SPRABERRY 7,661 ft-4,954 ft
SPRABERRY 7,662 ft-4,955 ft
RUSTLER
SANTA ROSA
SEVEN RIVERS

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
42-329-46848 RIO SAN MARCOS 36-45 UNIT 2A · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 1,000'Rustler 1,614'Yates 2,609'Yates 2,625'Seven Rivers 2,981'Queen 3,680'Queen 3,830'Grayburg 4,368'Grayburg 4,393'San Andres 5,121'San Andres 5,161'Glorieta 5,631' +8 more
42-329-46845 RIO SAN MARCOS 36-45 UNIT 2A · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 1,000'Rustler 1,614'Yates 2,608'Yates 2,617'Seven Rivers 2,981'Queen 3,682'Queen 3,827'Grayburg 4,370'Grayburg 4,391'San Andres 5,123'San Andres 5,161'Glorieta 5,628' +8 more
42-329-46849 RIO SAN MARCOS 36-45 UNIT 2B · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 1,000'Rustler 1,614'Yates 2,609'Queen 3,679'Grayburg 4,366'San Andres 5,161'Glorieta 5,632'Clear Fork 6,767'Spraberry 7,660'Seven Rivers
42-329-46846 RIO SAN MARCOS 36-45 UNIT 2A · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 1,000'Rustler 1,614'Yates 2,608'Yates 2,624'Seven Rivers 2,986'Queen 3,684'Queen 3,821'Grayburg 4,371'Grayburg 4,380'San Andres 5,126'San Andres 5,161'Glorieta 5,626' +8 more
42-329-46844 RIO SAN MARCOS 36-45 UNIT 2A · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 1,000'Rustler 1,614'Yates 2,608'Yates 2,617'Seven Rivers 2,979'Queen 3,685'Queen 3,820'Grayburg 4,372'Grayburg 4,386'San Andres 5,125'San Andres 5,161'Glorieta 5,624' +8 more
42-329-41850 RIO NUECES 37-44 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 1,000'Yates 2,650'Seven Rivers 2,965'Queen 3,822'Grayburg 4,463'San Andres 5,105'Glorieta 5,843'Clear Fork 6,785'Spraberry 7,652'Spraberry 9,021'
42-329-41851 RIO NUECES 37-44 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 1,000'Yates 2,650'Seven Rivers 2,965'Queen 3,822'Grayburg 4,463'San Andres 5,105'Glorieta 5,843'Clear Fork 6,785'Spraberry 7,652'Spraberry 9,021'
42-329-46869 RIO SAN MARCOS 36-45 UNIT 2B · ENDEAVOR ENERGY RESOURCES L.P.
0.3 mi
Santa Rosa 1,000'Rustler 1,614'Yates 2,609'Queen 3,679'Grayburg 4,366'San Andres 5,161'Glorieta 5,632'Clear Fork 6,767'Spraberry 7,660'Seven Rivers

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 (1)

IntervalType
8,721–18,656 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,391 ft880 sx
9.625"7,945 ft1,280 sx
5.5"18,674 ft2,105 sx

Permit History (1)

Applications (1)

#897668 A ENDEAVOR ENERGY RESOURCES L.P.
received 2024-02-23

Records & Logs

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

W-2/G-1 2025-06-11 log on file
W-2/G-1 2024-10-21

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.

Lat 31.790337
Lon -102.013336

Well Details

Well Number
181
Max Depth
10,049 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2025-02-03

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