42-103-32857

BLOCK 31 UNIT

CRANE County · District 8 · OXY USA INC.

Permits

5

Max Depth

9,075 ft

First Permit

1982-03-24

Latest Activity

2019-04-05

Lifespan

37 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Cancelled 2010-03-22 UIC #000044599 permitted 1992-10-06

Permitted Volume

5,000 mcf/d

Max Pressure

Injection Interval

8,000–9,000 ft

Injected (12mo)

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 (7) Elevation 2,560 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
GRAYBURG 2,901 ft-341 ft
GRAYBURG 3,066 ft-506 ft
GLORIETA 4,115 ft-1,555 ft
PENN DETRITAL (Pennsylvanian)7,071 ft-4,511 ft
BARNETT 7,518 ft-4,958 ft
ATOKA 7,753 ft-5,193 ft
DEVONIAN 8,000 ft-5,440 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
42-103-33479 BLOCK 31 UNIT · OXY USA INC.
0.5 mi
Grayburg 2,953'Grayburg 3,066'Cisco 7,064'Cisco 7,064'Canyon 7,264'Strawn 7,427'Atoka 7,515'Barnett 7,599'Barnett 7,600'Atoka 7,753'Woodford 7,906'Devonian 8,097'
42-103-03055 BLOCK 31 UNIT · OXY USA INC.
0.7 mi
Wolfcamp 6,755'Pennsylvanian 7,034'Devonian 8,532'
42-103-31268 BLOCK 31 UNIT · OXY USA INC.
0.7 mi
Grayburg 2,906'Wolfcamp 6,804'Pennsylvanian 7,294'Atoka 7,599'Devonian 8,106'
42-103-31977 BLOCK 31 UNIT · OXY USA INC.
0.8 mi
Grayburg 2,876'Glorieta 4,100'Pennsylvanian 7,288'Barnett 7,643'Woodford 7,931'Devonian 8,105'Devonian 8,109'
42-103-32143 BLOCK 31 UNIT · OXY USA INC.
0.9 mi
Wolfcamp 6,911'Cisco 7,159'Cisco 7,159'Cisco 7,159'Canyon 7,290'Canyon 7,298'Strawn 7,453'Barnett 7,613'OSAGE (MISS LIME) 8,119'Woodford 8,149'Devonian 8,338'Atoka 8,549'
42-103-31285 BLOCK 31 UNIT · OXY USA INC.
1.0 mi
Grayburg 2,907'Glorieta 4,099'Glorieta 4,099'Pennsylvanian 7,293'Pennsylvanian 7,293'Atoka 7,609'Devonian 8,210'
42-103-33212 BLOCK 31 UNIT · OXY USA INC.
1.0 mi
Glorieta 4,132'Pennsylvanian 7,074'BLOCK 31 (ATOKA) 7,518'Devonian 8,206'
42-103-32039 BLOCK 31 UNIT · OXY USA INC.
1.1 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 (7)

IntervalType
7,481–7,489 ftPerforated
7,500–7,508 ftPerforated
8,033–8,526 ftPerforated
8,033–8,950 ftPerforated
8,499–8,691 ftPerforated
8,548–8,798 ftPerforated
8,894–8,950 ftPerforated

Casing (5)

SizeSet DepthCement
8.625"3,612 ft375 sx
8.625"3,612 ft1,100 sx
2.875"8,412 ft
5.5"9,075 ft1,550 sx
5.5"9,075 ft1,550 sx

Permit History (5)

Applications (5)

#851792 A OXY USA INC.
received 2019-04-04
#658625 A BP AMERICA PRODUCTION COMPANY
received 2008-04-01
#490271 A ARCO PERMIAN
received 2000-03-13
#490271 A ARCO PERMIAN
received 1999-12-10
#154504 A ARCO OIL & GAS CO.
received 1982-03-24

Records & Logs

9 completion filings on record · 3 with log images at RRC.

W-2/G-1 2023-07-11
W-2/G-1 2017-05-15 log on file
W-2/G-1 2008-11-05 log on file
W-2/G-1 2009-02-25
W-2/G-1 2001-03-07
W-2/G-1 2000-03-30 log on file

+3 more filings

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 31.454601
Lon -102.453668

Well Details

Well Number
C 8
Max Depth
9,075 ft
Drill Type
Vertical
County
CRANE
District
8
Operator
OXY USA INC.

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-01-26)
Cum Oil (all leases)
277,250,617 bbl
Cum Gas (all leases)
814,544,078 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
3,279