42-461-42217

PRODUCING Horizontal

UNIVERSITY 3-12D

UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

2

Max Depth

10,221 ft

First Permit

2022-12-05

Latest Activity

2022-12-05

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-05-24

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-12

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 (15) Elevation 2,736 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 697 ft+2,039 ft
RUSTLER 1,313 ft+1,423 ft
YATES 2,233 ft+503 ft
SEVEN RIVERS 2,590 ft+146 ft
QUEEN 3,315 ft-579 ft
GRAYBURG 4,084 ft-1,348 ft
SAN ANDRES - SALTWATER FLOW (San Andres)4,309 ft-1,573 ft
CLEARFORK (Clear Fork)6,026 ft-3,290 ft
SPRABERRY 6,794 ft-4,058 ft
DEAN 8,115 ft-5,379 ft
WOLFCAMP 8,293 ft-5,557 ft
DEVONIAN
ELLENBURGER
FUSSELMAN
STRAWN

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
42-461-42216 UNIVERSITY 3-12C · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 697'Rustler 1,313'Yates 2,236'Seven Rivers 2,588'Queen 3,318'Grayburg 4,076'San Andres 4,340'Clear Fork 6,032'Spraberry 6,796'Dean 8,118'
42-461-42215 UNIVERSITY 3-12B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 698'Rustler 1,314'Yates 2,235'Grayburg 4,080'San Andres 4,321'Spraberry 6,812'Wolfcamp 8,316'Fusselman Devonian Ellenburger Strawn
42-461-42214 UNIVERSITY 3-12A · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,238'Seven Rivers 2,592'Grayburg 4,085'San Andres 4,328'Clear Fork 6,050'Spraberry 6,824'Dean 8,144'Wolfcamp 8,321'Strawn Devonian Fusselman
42-461-42887 UNIVERSITY 3-12E · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 697'Rustler 1,313'Yates 2,228'Seven Rivers 2,585'Queen 3,321'Grayburg 4,139'San Andres 4,288'Grayburg 4,319'Clear Fork 6,020'Spraberry 6,784'Dean 8,113'
42-461-41800 UL WAYLON F · HIBERNIA RESOURCES III, LLC
0.8 mi
Yates 2,216'Grayburg 3,643'San Andres 4,259'Spraberry 6,809'Wolfcamp 8,267'Strawn Devonian Ellenburger Fusselman
42-461-41799 UL WAYLON E · HIBERNIA RESOURCES III, LLC
0.8 mi
Yates 2,218'Grayburg 3,646'San Andres 4,279'Spraberry 6,806'Wolfcamp 8,264'Fusselman Strawn Devonian Ellenburger
42-461-41798 UL WAYLON D · HIBERNIA RESOURCES III, LLC
0.8 mi
Yates 2,213'Grayburg 3,645'San Andres 4,272'Spraberry 6,806'Wolfcamp 8,264'Devonian Strawn Ellenburger Fusselman
42-461-41797 UL WAYLON C · HIBERNIA RESOURCES III, LLC
0.8 mi
Yates 2,208'Grayburg 3,646'San Andres 4,270'Spraberry 6,804'Wolfcamp 8,261'Strawn Fusselman Devonian Ellenburger

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
9,147–21,928 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,203 ft1,450 sx
9.625"5,475 ft1,277 sx
5.5"21,953 ft1,444 sx

Permit History (2)

Applications (2)

#883388 A PIONEER NATURAL RES. USA, INC.
received 2024-07-26
#883388 A PIONEER NATURAL RES. USA, INC.
received 2022-08-25

Records & Logs

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

W-2/G-1 2025-08-11
W-2/G-1 2025-01-20 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 31.281357
Lon -101.868151

Well Details

Well Number
4H
Max Depth
10,221 ft
Drill Type
Horizontal
County
UPTON
District
7
Completed
2025-05-24

Operator

Location
Y SPRING
P-5 Status
Active (filed 2025-08-01)
Cum Oil (all leases)
1,771,882,421 bbl
Cum Gas (all leases)
1,763,727,021 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
15,399