42-103-33943

BLOCK 31 UNIT

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

Permits

3

Max Depth

9,500 ft

First Permit

1989-07-10

Latest Activity

2018-05-22

Lifespan

29 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1989-11-07

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

Injection / Disposal

H-1 Injection Cancelled 2024-06-07 UIC #000070110 permitted 2001-11-05

Permitted Volume

10,000 mcf/d

Max Pressure

Injection Interval

8,325–9,280 ft

Injected (12mo)

Monthly injected volume (bbl, from H-10 filings through 2019-06-01)

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (8) Elevation 2,587 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
CANYON 7,350 ft-4,763 ft
UPPER STRAWN (Strawn)7,534 ft-4,947 ft
ATOKA 7,647 ft-5,060 ft
BARNETT SHALE (Barnett)7,764 ft-5,177 ft
BARNETT 7,772 ft-5,185 ft
MISS LIME (Mississippian)8,062 ft-5,475 ft
WOODFORD SHALE (Woodford)8,080 ft-5,493 ft
DEVONIAN 8,257 ft-5,670 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
42-103-33583 BLOCK 31 UNIT · OXY USA INC.
0.3 mi
Wolfcamp 6,879'Pennsylvanian 7,194'Cisco 7,390'Atoka 7,740'Barnett 7,797'Woodford 8,120'Devonian 8,326'
42-103-33995 BLOCK 31 UNIT · OXY USA INC.
0.3 mi
Canyon 7,411'Strawn 7,566'Atoka 7,677'Barnett 7,735'Woodford 8,140'Mississippian 8,210'Devonian 8,277'Devonian 8,300'
42-103-34231 BLOCK 31 UNIT · OXY USA INC.
0.4 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'
42-103-32080 BLOCK 31 UNIT · OXY USA INC.
0.4 mi
CICSO 7,167'Strawn 7,527'Morrow 7,757'
42-103-32936 BLOCK 31 UNIT · OXY USA INC.
0.6 mi
Grayburg 2,976'Wolfcamp 6,880'Cisco 7,211'Canyon 7,474'Strawn 7,640'Atoka 7,751'Barnett 7,889'
42-103-32652 BLOCK 31 UNIT · OXY USA INC.
0.7 mi
Grayburg 2,975'Glorieta 4,185'Glorieta 4,185'Tubb 5,020'Pennsylvanian 7,208'Barnett 7,900'Devonian 8,464'
42-103-32039 BLOCK 31 UNIT · OXY USA INC.
0.7 mi
Wolfcamp 6,761'Cisco 7,131'Canyon 7,349'Strawn 7,506'Barnett 7,529'Atoka 7,609'
42-103-33864 BLOCK 31 UNIT · OXY USA INC.
0.7 mi
Barnett 7,925'Mississippian 8,278'Woodford 8,295'Devonian 8,467'San Angelo Seven Rivers Glorieta San Andres Mississippian Rustler Grayburg Woodford +2 more

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
7,354–7,538 ftPerforated
7,354–7,765 ftPerforated
8,344–8,992 ftPerforated

Casing (4)

SizeSet DepthCement
13.375"725 ft625 sx
8.625"3,620 ft1,550 sx
5.5"9,290 ft1,350 sx
5.5"9,290 ft1,350 sx

Permit History (3)

Applications (3)

#840259 A OXY USA INC.
received 2019-03-05
#840259 A OXY USA INC.
received 2018-05-19
#361235 A ARCO OIL & GAS CO.
received 1989-07-07

Records & Logs

4 completion filings on record.

W-2/G-1 2023-02-15
W-2/G-1 2019-03-12
W-2/G-1 1989-12-08
W-2/G-1 1989-12-16
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 31.475508
Lon -102.444119

Well Details

Well Number
F 7F
Max Depth
9,500 ft
Drill Type
Vertical
County
CRANE
District
8
Completed
1989-11-07

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