42-329-44305

PRODUCING Horizontal

COLONIAL L 1-12

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

2

Max Depth

9,500 ft

First Permit

2020-05-14

Latest Activity

2020-05-14

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-01-07

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: DE3 OPERATING LLC

Resolved via: productionPIONEER NATURAL RES. USA, INC.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-07

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 (10) Elevation 2,710 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,000 ft+1,710 ft
RUSTLER 1,711 ft+999 ft
YATES 2,583 ft+127 ft
SEVEN RIVERS 2,797 ft-87 ft
QUEEN 3,449 ft-739 ft
GRAYBURG 3,974 ft-1,264 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,189 ft-1,479 ft
GLORIETA 5,414 ft-2,704 ft
CLEARFORK (Clear Fork)6,604 ft-3,894 ft
SPRABERRY 7,437 ft-4,727 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
42-329-44304 COLONIAL K 1-12 · DE3 OPERATING LLC
0.0 mi
Santa Rosa 1,000'Rustler 1,707'Yates 2,584'Seven Rivers 2,794'Queen 3,447'Grayburg 3,980'San Andres 4,195'Glorieta 5,407'Clear Fork 6,607'Spraberry 7,442'
42-329-44306 COLONIAL L 1-12 · DE3 OPERATING LLC
0.0 mi
Santa Rosa 1,000'Rustler 1,711'Yates 2,584'Seven Rivers 2,795'Queen 3,447'Grayburg 3,977'San Andres 4,194'Glorieta 5,410'Clear Fork 6,605'Spraberry 7,438'
42-329-44303 COLONIAL J 1-12 · DE3 OPERATING LLC
0.0 mi
Santa Rosa 1,000'Rustler 1,722'Yates 2,586'Seven Rivers 2,802'Queen 3,452'Grayburg 3,979'San Andres 4,199'Glorieta 5,415'Clear Fork 6,610'Spraberry 7,445'
42-329-42494 GOLLADAY · MURCHISON OIL & GAS INC
0.1 mi
Santa Rosa 920'Yates 2,574'Seven Rivers 2,734'Queen 3,451'Grayburg 3,933'San Andres 4,227'Glorieta 5,403'Clear Fork 6,636'Spraberry 7,389'Spraberry 8,806'
42-329-42498 GOLLADAY · MURCHISON OIL & GAS INC
0.1 mi
Santa Rosa 920'Yates 2,578'Seven Rivers 2,728'Queen 3,453'Grayburg 3,925'San Andres 4,224'Glorieta 5,413'Clear Fork 6,632'Spraberry 7,439'Spraberry 8,799'
42-329-44300 COLONIAL I 1-12 · DE3 OPERATING LLC
0.1 mi
Santa Rosa 1,000'Rustler 1,716'Yates 2,581'Seven Rivers 2,798'Queen 3,453'Grayburg 3,979'San Andres 4,186'Glorieta 5,407'Clear Fork 6,615'Spraberry 7,443'
42-329-44301 COLONIAL I 1-12 · DE3 OPERATING LLC
0.1 mi
Santa Rosa 1,000'Rustler 1,717'Yates 2,582'Seven Rivers 2,800'Queen 3,450'Grayburg 3,978'San Andres 4,185'Glorieta 5,409'Clear Fork 6,615'Spraberry 7,441'
42-329-44302 COLONIAL J 1-12 · DE3 OPERATING LLC
0.1 mi
Santa Rosa 1,000'Rustler 1,714'Yates 2,581'Seven Rivers 2,797'Queen 3,450'Grayburg 3,978'San Andres 4,186'Glorieta 5,405'Clear Fork 6,610'Spraberry 7,441'

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
9,706–17,057 ftPerforated

Casing (4)

SizeSet DepthCement
13.375"1,678 ft1,400 sx
9.625"8,546 ft605 sx
5.5"17,158 ft2,365 sx
5.5"17,162 ft2,365 sx

Permit History (2)

Applications (2)

#863618 A DE3 OPERATING LLC
received 2020-05-26
#863618 A DE3 OPERATING LLC
received 2020-05-12

Records & Logs

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

W-2/G-1 2021-04-08 log on file
W-2/G-1 2020-11-20 log on file

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 31.980195
Lon -101.939699

Well Details

Well Number
4312H
Max Depth
9,500 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2021-01-07

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
15,491