WELL · 42-103-03010 · DISTRICT 8

Block 31 Unit #4FF

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Crane County · Block 31 (Queen) field · Producing  · Vertical

Block 31 Unit #4FF (API 42-103-03010) is a well in Crane County operated by Hilcorp Energy Company, completed June 26, 1997 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 25, 1997, permitted to 3,252 ft.

It was permitted by Arco Permian and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 4 formation tops, including Rustler, Yates, Queen, Grayburg.

Its 2 leases have reported 93.7K barrels of oil and 1.31M mcf of gas since January 1993, last reporting in July 2026. The leases carry 30 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Arco Permian; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,454
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsOXY USA Inc.through Apr 2026
Latest permitArco PermianJun 25, 1997

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

3,252
total depth, ft
1
permits on file
Jun 25, 1997
last permit issued
Jun 26, 1997
completed
93.7K
cumulative oil, bbl
1.31M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 26, 1997
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 30 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Block 31 Unit G-10-163949Block 31 (Queen)Hilcorp Energy Company101.3MJun 1997 – Jul 2026
Block 31 Unit O-10-9684Block 31 (Grayburg)Hilcorp Energy Company2993.7K8.31KJan 1993 – Jul 2026

Gas, mcf lease total

Last 12 months 139 · prior 12 403(-66%)

0204060202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Arco Oil & Gas Co.Jan 1993 → May 1994
  2. 2Arco PermianJun 1994 → Dec 2001
  3. 3BP America Production CompanyJan 2002 → Oct 2010
  4. 4OXY USA Inc.Nov 2010 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
464232-99RecompletionArco PermianJun 25, 1997Jun 25, 1997Jun 28, 19973,100

Completions

CompletedLeaseFieldOperatorStatusDepth
Jun 26, 1997Block 31 Unit G-10-163949Block 31 (Queen)Hilcorp Energy CompanyProducing3,252
Jun 9, 1971Block 31 Unit O-10-9684Block 31 (Grayburg)Hilcorp Energy CompanyNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,594 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler8951,699
Yates1,977617
Queen2,830-236
Grayburg2,937-343

Perforations

Perforated and open-hole intervals.

FromToType
2,9032,931Perforated
3,2163,239Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
7.62561411325 S
7.6251,61411200 S
2.3753,196——
4.53,2416.75350 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Aug 25, 1997Jul 17, 1997Yes
00Aug 15, 1997——
00Apr 10, 1990Mar 6, 1990—
00Jan 12, 1984Jul 27, 1983—

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

150
bbl, last 12 reported months
2.08M
bbl, all reported
Jun 1998
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000048895H-1 InjectionCanceled Jul 9, 19993,0001,4503,216–3,240

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 150 · prior 12 6,621(-98%)

01K2K3K19971998

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/10303010, documented in the API reference.