WELL · 42-103-31957 · DISTRICT 8
Block 31 Unit #0-10
Crane County · Block 31 (Devonian) field · Producing · Vertical
Block 31 Unit #0-10 (API 42-103-31957) is a well in Crane County operated by Hilcorp Energy Company, completed November 12, 1978 and listed as producing on the RRC schedule, shut in August 1, 2026.
The RRC has issued 2 drilling permits in 1978, permitted to 9,100 ft.
It was permitted by Atlantic Richfield CO. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 2 formation tops, including Devonian, Intermediate Devonian.
Its 2 leases have reported 15.2M barrels of oil and 972M mcf of gas since January 1993, last reporting in July 2026. The leases carry 331 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Atlantic Richfield Co.; 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 schedule | none |
| Production reports | OXY USA Inc.through Apr 2026 |
| Latest permit | Atlantic Richfield Co.Sep 28, 1978 |
- 9,100
- total depth, ft
- 2
- permits on file
- Sep 28, 1978
- last permit issued
- Nov 12, 1978
- completed
- 15.2M
- cumulative oil, bbl
- 972M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 12, 1978
- Shut in
- Aug 1, 2026
- 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 331 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Block 31 Unit G-10-279846 | Block 31 (Devonian) | Hilcorp Energy Company | 1 | 0 | 1.31M | Aug 2015 – Jul 2026 |
| Block 31 Unit O-10-442 | Block 31 (Devonian) | OXY USA EOR, LLC | 330 | 15.2M | 971M | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 4,334,125 · prior 12 5,389,222(-20%)
Oil, barrels lease total
Last 12 months 42,201 · prior 12 62,459(-32%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Arco Oil & Gas Co.Jan 1993 → May 1994
- 2Arco PermianJun 1994 → Dec 2001
- 3BP America Production CompanyJan 2002 → Oct 2010
- 4OXY USA Inc.Nov 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 40349-99 | Drill | Atlantic Richfield Co. | Sep 28, 1978 | Sep 28, 1978 | — | 9,100 |
| 34294-99 | Drill | Atlantic Richfield Co. | Sep 28, 1978 | Sep 28, 1978 | Oct 9, 1978 | 9,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 12, 1978 | Block 31 Unit G-10-279846 | Block 31 (Devonian) | Hilcorp Energy Company | Producing · shut in Aug 1, 2026 | 9,100 |
| Feb 8, 2010 | Block 31 Unit O-10-442 | Block 31 (Devonian) | OXY USA EOR LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,554 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,156 | 8,179 | Perforated |
| 8,156 | 9,021 | Perforated |
| 8,162 | 9,014 | Perforated |
| 8,562 | 8,578 | Perforated |
| 8,579 | 8,607 | Perforated |
| 8,610 | 8,640 | Perforated |
| 8,640 | 8,660 | Perforated |
| 8,660 | 8,662 | Perforated |
| 8,665 | 8,689 | Perforated |
| 8,669 | 8,713 | Perforated |
| 8,720 | 8,724 | Perforated |
| 8,762 | 9,021 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,550 | 11 | 850 S |
| 8.625 | 2,550 | — | 850 S |
| 2.875 | 8,050 | — | — |
| 5.5 | 9,100 | 7.875 | 1,400 S |
| 5.5 | 9,100 | — | 1,400 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 10, 2016 | Oct 27, 2015 | — |
| 00 | Jun 21, 2010 | Jun 1, 2010 | — |
| 00 | Jun 9, 1993 | Mar 31, 1993 | — |
| 00 | Jan 12, 1984 | Nov 21, 1978 | — |
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.
- Wellbore filings for 42-103-31957 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-31957 → scanned completion filings
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.
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/10331957, documented in the API reference.