42-461-41955

Final Completion Horizontal

CARBON 12-13 UNIT 1

UPTON County · District 7 · ENDEAVOR ENERGY RESOURCES L.P.

Permits

1

Max Depth

11,000 ft

First Permit

2021-11-10

Latest Activity

2021-11-10

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2022-03

Last Production

2026-07

Lease Production

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

Formation Tops (14) Elevation 2,851 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER 1,691 ft+1,160 ft
YATES 2,722 ft+129 ft
GRAYBURG 4,748 ft-1,897 ft
SAN ANDRES - SALTWATER FLOW (San Andres)5,330 ft-2,479 ft
CLEARFORK (Clear Fork)6,966 ft-4,115 ft
SPRABERRY 7,734 ft-4,883 ft
JO MILL 8,569 ft-5,718 ft
LOWER SPRABERRY SHALE (Spraberry)8,641 ft-5,790 ft
YATES 27,222 ft-24,371 ft
DEVONIAN
ELLENBURGER
FUSSELMAN
STRAWN
WOLFCAMP

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
42-461-41956 CARBON 12-13 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Rustler 1,677'Yates 2,722'Grayburg 4,777'San Andres 5,326'Spraberry 7,775'Fusselman Ellenburger Devonian Wolfcamp Strawn
42-461-41959 CARBON 12-13 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Rustler 1,676'Yates 2,722'Grayburg 4,750'San Andres 5,335'Spraberry 7,756'Wolfcamp Strawn Devonian Fusselman Ellenburger
42-461-41954 CARBON 12-13 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Rustler 1,673'Yates 2,722'Grayburg 4,758'San Andres 5,329'Glorieta 6,105'Clear Fork 6,934'Spraberry 7,775'Jo Mill 8,587'Dean 9,061'Wolfcamp 9,181'Wolfcamp 9,603'Strawn +4 more
42-461-41951 CARBON 12-13 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Rustler 1,674'Yates 2,722'Grayburg 4,745'San Andres 5,337'Glorieta 6,109'Clear Fork 6,986'Spraberry 7,762'Jo Mill 8,638'Spraberry 8,728'Wolfcamp Strawn Fusselman +2 more
42-461-41957 CARBON 12-13 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.1 mi
Rustler 1,687'Yates 2,722'Grayburg 4,739'San Andres 5,328'Glorieta 6,081'Clear Fork 6,912'Spraberry 7,768'Jo Mill 8,583'Spraberry 8,672'Wolfcamp Strawn Ellenburger +2 more
42-461-41961 CARBON 12-13 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.1 mi
Rustler 1,680'Yates 2,722'Grayburg 4,779'San Andres 5,348'Glorieta 6,068'Clear Fork 6,972'Spraberry 7,738'Jo Mill 8,578'Spraberry 8,653'Dean 9,046'Wolfcamp Devonian +3 more
42-461-41960 CARBON 12-13 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.1 mi
Rustler 1,651'Yates 2,722'Grayburg 4,762'San Andres 5,356'Glorieta 6,109'Clear Fork 6,946'Spraberry 7,775'Jo Mill 8,596'Spraberry 8,667'Fusselman Wolfcamp Devonian +2 more
42-461-42570 FRASER TXL H3 · COG OPERATING LLC
0.2 mi
Yates 2,711'Yates 2,732'Grayburg 4,756'San Andres 4,803'SAN ANDREWS-SALTWATER FLOW 4,803'Spraberry 7,699'SPAYBERRY 7,699'Strawn Devonian Ellenburger Fusselman Wolfcamp

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
9,295–19,213 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,430 ft1,004 sx
9.625"8,384 ft610 sx
5.5"19,337 ft1,990 sx

Permit History (1)

Applications (1)

#874140 A ENDEAVOR ENERGY RESOURCES L.P.
received 2021-11-01

Records & Logs

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

W-2/G-1 2023-04-12 log on file
W-2/G-1 2022-10-26
W-2/G-1 2022-06-08 log on file
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.

Lat 31.592373
Lon -102.133374

Well Details

Well Number
121
Max Depth
11,000 ft
Drill Type
Horizontal
County
UPTON
District
7

Operator

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