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BLOCK 31 UNIT

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

Permits

Max Depth

9,110 ft

First Permit

1983-02-04

Latest Activity

1998-05-05

Lifespan

15 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

1983-04-18

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 PERMIAN

Resolved via: production → OXY USA INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

ARCO OIL & GAS CO. 1993-1994→ ARCO PERMIAN 1994-2001→ BP AMERICA PRODUCTION COMPANY 2002-2010→ OXY USA INC. 2010-2026

Lease Production

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

Formation Tops (2) Elevation 2,589 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
QUEEN	2,861 ft	-272 ft
GRAYBURG	2,980 ft	-391 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)

Interval	Type
2,960–2,970 ft	Perforated
8,521–9,014 ft	Perforated

Casing (5)

Size	Set Depth	Cement
8.625"	3,610 ft	1,500 sx
8.625"	3,610 ft	1,500 sx
2.875"	8,414 ft	—
5.5"	9,110 ft	1,800 sx
5.5"	9,110 ft	1,800 sx

Permit History (2)

#475998 Recompletion Final Completion

BLOCK 31 UNIT · 9,110 ft

1998-05-05

Spud 1998-05-08

#185287 Drill Final Completion

BLOCK 31 UNIT · 9,110 ft

1983-02-04

Spud 1983-03-04

Applications (2)

#475998 A ARCO PERMIAN

received 1998-05-05

#185287 A ARCO OIL & GAS CO.

received 1983-02-04

Records & Logs

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

W-2/G-1 1998-06-02 log on file

W-2/G-1 1998-07-29

W-2/G-1 1983-04-29

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: H 6H
Max Depth: 9,110 ft
Drill Type: Vertical
County: CRANE
District: 8
Operator: OXY USA EOR LLC
Completed: 1983-04-18

Operator

Name: OXY USA EOR, LLC
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