42-103-33825

BLOCK 31 UNIT

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

Permits

3

Max Depth

9,100 ft

First Permit

1987-11-16

Latest Activity

2018-03-05

Lifespan

30 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1993-06-07

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 (13) Elevation 2,532 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
WOLFCAMP LS (Wolfcamp)6,741 ft-4,209 ft
CISCO - PENN DETRITAL (Cisco)7,020 ft-4,488 ft
CANYON 7,160 ft-4,628 ft
UPPER STRAWN (Strawn)7,320 ft-4,788 ft
ATOKA 7,408 ft-4,876 ft
BARNETT SHALE (Barnett)7,473 ft-4,941 ft
BARNETT 7,474 ft-4,942 ft
OSAGE7,873 ft-5,341 ft
MISSISSIPPI LIME (Mississippian)7,874 ft-5,342 ft
WOODFORD 7,897 ft-5,365 ft
WOODFORD SHALE (Woodford)7,900 ft-5,368 ft
DEVONIAN 8,090 ft-5,558 ft
DEVONIAN 8,092 ft-5,560 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
42-103-33790 BLOCK 31 UNIT · OXY USA INC.
0.3 mi
Cisco 7,003'Strawn 7,337'Morrow 7,495'Barnett 7,510'Woodford 7,949'Devonian 8,136'
42-103-03055 BLOCK 31 UNIT · OXY USA INC.
0.8 mi
Wolfcamp 6,755'Pennsylvanian 7,034'Devonian 8,532'
42-103-32997 UNIVERSITY B 38 · SLANT OPERATING, LLC
0.9 mi
Grayburg 2,960'Glorieta 4,152'Pennsylvanian 7,088'Pennsylvanian 7,090'Atoka 7,550'Barnett 7,720'Devonian 8,250'Devonian 9,495'
42-103-32542 BLOCK 31 UNIT · OXY USA INC.
0.9 mi
Wolfcamp 6,814'Cisco 7,085'Canyon 7,330'Strawn 7,509'Atoka 7,611'Barnett 7,714'Woodford 8,200'Devonian 8,390'
42-103-33212 BLOCK 31 UNIT · OXY USA INC.
0.9 mi
Glorieta 4,132'Pennsylvanian 7,074'BLOCK 31 (ATOKA) 7,518'Devonian 8,206'
42-103-32688 BLOCK 31 UNIT · OXY USA INC.
1.2 mi
Queen 2,852'Grayburg 2,957'Wolfcamp 6,840'Cisco 7,132'Canyon 7,423'Strawn 7,614'Atoka 7,725'Barnett 7,835'
42-103-32857 BLOCK 31 UNIT · OXY USA INC.
1.3 mi
Grayburg 2,901'Grayburg 3,066'Glorieta 4,115'Pennsylvanian 7,071'Barnett 7,518'Atoka 7,753'Devonian 8,000'
42-103-35961 BLOCK 31 UNIT · OXY USA INC.
1.4 mi
Yates 2,036'Tubb 5,048'Devonian 8,427'

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 (3)

IntervalType
7,267–7,339 ftPerforated
8,138–8,921 ftPerforated
8,578–9,032 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"733 ft800 sx
8.625"2,560 ft1,000 sx
5.5"9,100 ft1,050 sx

Permit History (3)

Applications (3)

#836895 A OXY USA INC.
received 2019-03-05
#836895 A OXY USA INC.
received 2018-02-28
#338949 A ARCO OIL & GAS CO.
received 1987-11-16

Records & Logs

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

W-2/G-1 2019-03-11
W-2/G-1 1993-07-22
W-2/G-1 1988-02-10 log on file
W-2/G-1 1988-02-23
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 31.436701
Lon -102.448695

Well Details

Well Number
M 5
Max Depth
9,100 ft
Drill Type
Vertical
County
CRANE
District
8
Completed
1993-06-07

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