42-103-32572

BLOCK 31 UNIT

CRANE County · District 8 · OXY USA EOR LLC · BLOCK 31 (DEVONIAN)

Permits

3

Max Depth

9,100 ft

First Permit

1981-05-21

Latest Activity

2018-05-21

Lifespan

37 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1976-11-19

Shut-In

Plugged

!

EWA / Production operator mismatch

Scheduling: OXY USA EOR LLC ≠ Production: OXY USA INC. (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: OXY USA EOR LLC ≠ Permit: OXY USA INC.

Resolved via: productionOXY USA INC.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

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 (6) Elevation 2,573 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
WOLFCAMP LS (Wolfcamp)6,894 ft-4,321 ft
CISCO - PENN DETRITAL (Cisco)7,214 ft-4,641 ft
CANYON 7,517 ft-4,944 ft
UPPER STRAWN (Strawn)7,694 ft-5,121 ft
ATOKA 7,805 ft-5,232 ft
BARNETT 7,960 ft-5,387 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
42-103-32652 BLOCK 31 UNIT · OXY USA INC.
0.2 mi
Grayburg 2,975'Glorieta 4,185'Glorieta 4,185'Tubb 5,020'Pennsylvanian 7,208'Barnett 7,900'Devonian 8,464'
42-103-32936 BLOCK 31 UNIT · OXY USA INC.
0.4 mi
Grayburg 2,976'Wolfcamp 6,880'Cisco 7,211'Canyon 7,474'Strawn 7,640'Atoka 7,751'Barnett 7,889'
42-103-34231 BLOCK 31 UNIT · OXY USA INC.
0.5 mi
Cisco 7,162'Canyon 7,388'Strawn 7,549'Atoka 7,712'Barnett 7,768'Mississippian 8,089'Woodford 8,110'Devonian 8,277'Devonian 8,280'
42-103-32569 BLOCK 31 UNIT · OXY USA INC.
0.5 mi
Wolfcamp 6,920'Cisco 7,234'Canyon 7,576'Atoka 7,668'Strawn 7,779'Barnett 8,040'
42-103-32080 BLOCK 31 UNIT · OXY USA INC.
0.5 mi
CICSO 7,167'Strawn 7,527'Morrow 7,757'
42-103-32485 BLOCK 31 UNIT · OXY USA INC.
0.6 mi
Grayburg 2,990'Glorieta 4,183'Pennsylvanian 7,165'Atoka 7,220'MISSISSIPIAN 7,868'Devonian 8,599'
42-103-33016 UNIVERSITY -36A- · SLANT OPERATING, LLC
0.6 mi
Grayburg 3,047'Glorieta 4,253'Pennsylvanian 7,323'Cisco 7,505'Canyon 7,637'Strawn 7,816'Atoka 7,953'Barnett 8,105'Devonian 8,875'
42-103-32039 BLOCK 31 UNIT · OXY USA INC.
0.6 mi
Wolfcamp 6,761'Cisco 7,131'Canyon 7,349'Strawn 7,506'Barnett 7,529'Atoka 7,609'

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 (2)

IntervalType
7,450–7,726 ftPerforated
8,600–8,936 ftPerforated

Casing (3)

SizeSet DepthCement
8.625"3,636 ft1,350 sx
2.875"8,941 ft
5.5"9,090 ft1,950 sx

Permit History (3)

Applications (3)

#840216 A OXY USA INC.
received 2019-03-05
#840216 A OXY USA INC.
received 2018-05-18
#119003 A ARCO OIL & GAS CO.
received 1981-05-21

Records & Logs

2 completion filings on record.

W-2/G-1 2019-03-13
W-2/G-1 1981-08-03
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 31.469522
Lon -102.431150

Well Details

Well Number
V 4
Max Depth
9,100 ft
Drill Type
Vertical
County
CRANE
District
8
Completed
1976-11-19

Operator

Location
HOUSTON
P-5 Status
Active (filed 2025-12-22)
Cum Oil (all leases)
— bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/G, OPRS/O