42-103-33946

SHUT IN

BLOCK 31 UNIT

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

Permits

1

Max Depth

9,500 ft

First Permit

1989-07-10

Latest Activity

1989-07-10

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1994-11-11

Shut-In

Plugged

P-5 Org Status: Active

!

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: ARCO OIL & GAS CO.

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 Active UIC #000070109 permitted 1993-04-07

Permitted Volume

10,000 mcf/d

Max Pressure

Injection Interval

8,267–9,267 ft

Injected (12mo)

Monthly injected volume (bbl, from H-10 filings through 2025-06-01)

Lease Production

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

Formation Tops (15) Elevation 2,580 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TANSILL 1,853 ft+727 ft
YATES 1,993 ft+587 ft
GRAYBURG 2,979 ft-399 ft
GLORIETA 4,187 ft-1,607 ft
WOLFCAMP 6,897 ft-4,317 ft
CANYON 7,366 ft-4,786 ft
STRAWN 7,525 ft-4,945 ft
BARNETT SHALE (Barnett)7,716 ft-5,136 ft
ATOKA 7,722 ft-5,142 ft
MORROW 7,830 ft-5,250 ft
BARNETT 7,873 ft-5,293 ft
MISS LIME (Mississippian)8,050 ft-5,470 ft
WOODFORD SHALE (Woodford)8,080 ft-5,500 ft
WOOFORD SHALE8,080 ft-5,500 ft
DEVONIAN 8,267 ft-5,687 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 ↗

Perforations (2)

IntervalType
8,344–9,030 ftPerforated
8,988–9,030 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"720 ft550 sx
8.625"3,610 ft1,550 sx
5.5"9,280 ft1,375 sx

Permit History (1)

Applications (1)

#361230 A ARCO OIL & GAS CO.
received 1989-07-07

Records & Logs

4 completion filings on record.

W-2/G-1 2024-04-25
W-2/G-1 2019-08-15
W-2/G-1 1989-12-08
W-2/G-1 1990-01-11
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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in CRANE County.

Well Details

Well Number
Q 20
Max Depth
9,500 ft
Drill Type
Vertical
County
CRANE
District
8
Completed
1994-11-11

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