← Wells

42-329-31448

SLAUGHTER '28'

MIDLAND County · District 8 · ENDEAVOR ENERGY RESOURCES L.P.

Permits

5

Max Depth

12,000 ft

First Permit

1984-12-07

Latest Activity

2014-12-23

Lifespan

30 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

KEMPER OPERATING CO. 1993-1994→ KEMPER OPERATING COMPANY, INC. 1994-2008→ ENDEAVOR ENERGY RESOURCES L.P. 2008-2019→ DE3 OPERATING LLC 2019-2021→ PIONEER NATURAL RES. USA, INC. 2021-2025

Lease Production

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

Oil
production & DCA →
Oil
production & DCA →

Formation Tops (7) Elevation 2,723 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
STRAWN 10,228 ft-7,505 ft
BEND 10,380 ft-7,657 ft
ATOKA 10,628 ft-7,905 ft
DEVONIAN 11,167 ft-8,444 ft
FUSSELMAN 11,705 ft-8,982 ft
SYLVAN11,782 ft-9,059 ft
MONTOYA 11,786 ft-9,063 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
✓ 42-329-43724 MIRA VISTA 28 · DE3 OPERATING LLC
0.4 mi
Santa Rosa 1,000'Yates 2,515'Seven Rivers 2,659'Queen 3,332'Grayburg 3,951'San Andres 4,121'Glorieta 5,094'Clear Fork 6,467'Spraberry 7,353'Spraberry 8,665'
✓ 42-329-42912 BRUCE SUTTER 32-41-G · PARSLEY ENERGY OPERATIONS, LLC
0.9 mi
San Andres 4,181'Clear Fork 5,984'Spraberry 7,409'Spraberry 8,729'Santa Rosa —Queen —Seven Rivers —Glorieta —Grayburg —Yates —
✓ 42-329-42911 BRUCE SUTTER 32-41-H · PARSLEY ENERGY OPERATIONS, LLC
0.9 mi
San Andres 4,181'Clear Fork 5,973'Spraberry 7,406'Spraberry 8,720'Queen —Santa Rosa —Seven Rivers —Glorieta —Grayburg —Yates —
✓ 42-329-45553 BIG MAC SWD · DOUBLE DROP SWD, LLC
0.9 mi
Santa Rosa 1,500'Rustler 1,800'Yates 2,000'Seven Rivers 2,200'Queen 3,200'Grayburg 3,800'San Andres 4,200'Glorieta —Spraberry —Clear Fork —
✓ 42-329-43835 LB EPLEY 34-46 A · DIAMONDBACK E&P LLC
1.3 mi
Santa Rosa 927'Yates 2,457'Seven Rivers 2,607'Queen 3,391'Grayburg 3,760'San Andres 4,054'Glorieta 5,120'Clear Fork 6,428'Spraberry 7,320'Spraberry —
✓ 42-329-43832 LB EPLEY 34-46 A · DIAMONDBACK E&P LLC
1.3 mi
Santa Rosa 927'Yates 2,457'Seven Rivers 2,607'Queen 3,391'Grayburg 3,760'San Andres 4,054'Glorieta 5,120'Clear Fork 6,428'Spraberry 7,320'Spraberry 8,628'
✓ 42-329-43836 LB EPLEY 34-46 A · DIAMONDBACK E&P LLC
1.3 mi
Santa Rosa 927'Yates 2,457'Seven Rivers 2,607'Queen 3,391'Grayburg 3,760'San Andres 4,045'San Andres 4,054'Glorieta 5,120'Clear Fork 6,428'Spraberry 7,320'Spraberry —
✓ 42-329-43834 LB EPLEY 34-46 A · DIAMONDBACK E&P LLC
1.3 mi
Santa Rosa 927'Yates 2,457'Seven Rivers 2,607'Queen 3,391'Grayburg 3,760'San Andres 4,054'Glorieta 5,120'Clear Fork 6,428'Spraberry 7,320'Spraberry —

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 (3)

IntervalType
10,235–10,343 ftPerforated
10,235–10,743 ftPerforated
11,706–11,724 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"336 ft325 sx
8.625"4,845 ft2,300 sx
5.5"11,838 ft375 sx

Permit History (5)

#802127 Recompletion

SLAUGHTER '28' · 11,870 ft

2014-12-23

Spud 2011-04-12

#802127 Recompletion Final Completion

SLAUGHTER '28' · 11,870 ft

2014-12-23

Spud 2011-04-12

#723890 Recompletion

SLAUGHTER "38" · 11,870 ft

2011-09-09

#332154 Recompletion Final Completion

SLAUGHTER · 12,000 ft

1987-06-30

#260293 Drill Final Completion

SLAUGHTER · 12,000 ft

1984-12-07

Spud 1984-12-28

Applications (5)

#802127 A ENDEAVOR ENERGY RESOURCES L.P.
received 2018-08-15
#802127 A ENDEAVOR ENERGY RESOURCES L.P.
received 2014-12-22
#723890 A ENDEAVOR ENERGY RESOURCES L.P.
received 2011-09-08
#332154 A UNION TEXAS PETROLEUM CORP.
received 1987-06-26
#260293 A UNION TEXAS PETROLEUM CORP.
received 1984-12-07

Records & Logs

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

W-2/G-1 2018-07-20
W-2/G-1 1987-10-13 log on file
W-2/G-1 1987-11-05
W-2/G-1 1985-03-18
W-2/G-1 1985-03-23
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 32.078310
Lon -101.918946

Well Details

Well Number
1
Max Depth
12,000 ft
Drill Type
Vertical
County
MIDLAND
District
8
Operator
ENDEAVOR ENERGY RESOURCES L.P.

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