42-317-45975

PRODUCING Horizontal

ALLAR-CALLAWAY 27L

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

Permits

1

Max Depth

9,100 ft

First Permit

2024-04-09

Latest Activity

2024-04-09

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-03-30

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-07

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 2,785 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,250 ft+1,535 ft
YATES 2,483 ft+302 ft
QUEEN 3,329 ft-544 ft
GRAYBURG 3,778 ft-993 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,959 ft-1,174 ft
SPRABERRY 7,366 ft-4,581 ft
CISCO
DEAN
PENNSYLVANIAN
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
42-317-45974 ALLAR-CALLAWAY 27K · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,250'Yates 2,481'Queen 3,328'Grayburg 3,777'San Andres 3,955'Clear Fork 5,998'Spraberry 7,371'Dean 8,706'Wolfcamp 8,908'Cisco Pennsylvanian
42-317-45976 ALLAR-CALLAWAY 27M · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,250'Yates 2,478'Queen 3,324'Grayburg 3,773'San Andres 3,954'Spraberry 7,362'Dean 8,696'Wolfcamp 8,905'Cisco Pennsylvanian
42-317-46063 MADISON-CALLAWAY 27J · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,261'Yates 2,486'Queen 3,333'Grayburg 3,780'San Andres 3,959'Spraberry 7,377'Dean Wolfcamp Pennsylvanian Cisco
42-317-46062 MADISON-CALLAWAY 27I · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,261'Yates 2,480'Queen 3,327'Grayburg 3,775'San Andres 4,763'Spraberry 7,377'Dean 8,719'Wolfcamp 8,931'Mississippian PRECAMBRIAN (UNDIFFERENTIATED) Fusselman Silurian (undifferentiated) +4 more
42-317-46061 MADISON-CALLAWAY 27H · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,261'Yates 2,485'Queen 3,330'Grayburg 3,781'San Andres 3,959'Clear Fork 6,012'Spraberry 7,381'Cisco Wolfcamp Pennsylvanian Dean
42-317-46060 MADISON-CALLAWAY 27G · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,261'Yates 2,484'Queen 3,331'Grayburg 3,781'San Andres 3,959'Spraberry 7,385'Dean 8,726'Wolfcamp 8,925'Cisco Pennsylvanian
42-317-45983 ALLAR-CALLAWAY 27T · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,250'Yates 2,478'Queen 3,312'Grayburg 3,725'San Andres 3,960'Clear Fork 5,985'Spraberry 7,359'Dean Pennsylvanian Wolfcamp Cisco
42-317-45981 ALLAR-CALLAWAY 27R · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,250'Yates 2,476'Queen 3,303'Grayburg 3,759'San Andres 3,962'Spraberry 7,353'Dean 8,692'Wolfcamp 8,896'Cisco Pennsylvanian

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
8,261–18,002 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,681 ft1,900 sx
9.625"6,087 ft1,715 sx
5.5"18,027 ft1,050 sx

Permit History (1)

Applications (1)

#897912 A PIONEER NATURAL RES. USA, INC.
received 2024-03-05

Records & Logs

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

W-2/G-1 2025-06-19
W-2/G-1 2024-09-12 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 32.333738
Lon -101.873984

Well Details

Well Number
12H
Max Depth
9,100 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2025-03-30

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