42-317-45983

PRODUCING Horizontal

ALLAR-CALLAWAY 27T

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

2025-03-28

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-08

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 (11) Elevation 2,785 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,250 ft+1,535 ft
YATES 2,478 ft+307 ft
QUEEN 3,312 ft-527 ft
GRAYBURG 3,725 ft-940 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,960 ft-1,175 ft
CLEARFORK (Clear Fork)5,985 ft-3,200 ft
SPRABERRY 7,359 ft-4,574 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
42-317-45981 ALLAR-CALLAWAY 27R · PIONEER NATURAL RES. USA, INC.
0.0 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
42-317-45980 ALLAR-CALLAWAY 27Q · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,250'Yates 2,486'Queen 3,335'Grayburg 3,767'San Andres 3,966'Clear Fork 5,987'Spraberry 7,355'Wolfcamp Cisco Pennsylvanian Dean
42-317-45978 ALLAR-CALLAWAY 27O · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,250'Yates 2,485'Queen 3,300'Grayburg 3,757'San Andres 3,952'Spraberry 7,345'Dean 8,676'Wolfcamp 8,886'Cisco Pennsylvanian
42-317-45977 ALLAR-CALLAWAY 27N · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,250'Yates 2,483'Queen 3,314'Grayburg 3,731'San Andres 3,957'Spraberry 7,344'Devonian Pennsylvanian Wolfcamp Cisco Strawn PRECAMBRIAN (UNDIFFERENTIATED) +5 more
42-317-46060 MADISON-CALLAWAY 27G · PIONEER NATURAL RES. USA, INC.
0.1 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
42-317-46061 MADISON-CALLAWAY 27H · PIONEER NATURAL RES. USA, INC.
0.1 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'Dean Pennsylvanian Wolfcamp Cisco
42-317-46062 MADISON-CALLAWAY 27I · PIONEER NATURAL RES. USA, INC.
0.1 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
42-317-46063 MADISON-CALLAWAY 27J · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,261'Yates 2,486'Queen 3,333'Grayburg 3,780'San Andres 3,959'Spraberry 7,377'Dean Pennsylvanian Wolfcamp Cisco

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
8,693–18,378 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,662 ft1,900 sx
9.625"5,218 ft1,275 sx
5.5"18,403 ft1,005 sx

Permit History (1)

Applications (1)

#897926 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 2024-10-28 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 32.332363
Lon -101.872863

Well Details

Well Number
20H
Max Depth
9,100 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2025-03-28

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