TEXAS · WELLS · CRANE COUNTY · API 42-103-33966 · DISTRICT 7B
Block 31 Unit #E 9
Crane County · Block 31 (Devonian) field · NO Production · Vertical
Block 31 Unit #E 9 (API 42-103-33966) is a well in Crane County operated by Oxy USA Eor LLC, completed April 10, 1991 and listed as no production on the RRC schedule, shut in May 1, 2026.
The RRC has issued one drilling permit (amended once), issued September 13, 1989, permitted to 9,100 ft.
It was permitted by Arco Oil & Gas CO. and has since transferred to Oxy USA Eor LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Atoka, Barnett, Mississippian, Woodford.
Its 2 leases have reported 15.2M barrels of oil and 971M mcf of gas since January 1993, last reporting in July 2026. The leases carry 338 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Arco Oil & Gas Co.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 22, 2025
- Permits on file
- 1
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | OXY USA Inc.through Apr 2026 |
| Latest permit | Arco Oil & Gas Co.Sep 13, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,100
- total depth, ft
- 2
- permits on file
- Sep 13, 1989
- last permit issued
- Apr 10, 1991
- completed
- 15.2M
- cumulative oil, bbl
- 971M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 10, 1991
- Shut in
- May 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 338 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Block 31 Unit O-10-442 | Block 31 (Devonian) | OXY USA EOR, LLC | 330 | 15.2M | 971M | Jan 1993 – Jul 2026 |
| Block 31 Unit O-10-21639 | Block 31, East (Atoka) | Hilcorp Energy Company | 8 | 10.2K | 96.9K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 4,268,890 · prior 12 5,311,503(-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 |
|---|---|---|---|---|---|---|
| 363761-98 | Drill | Arco Oil & Gas Co. | Jan 22, 1990 | Sep 13, 1989 | — | 9,250 |
| 363761-99 | Drill | Arco Oil & Gas Co. | Sep 11, 1989 | Sep 13, 1989 | Oct 21, 1989 | 9,250 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 10, 1991 | Block 31 Unit O-10-442 | Block 31 (Devonian) | OXY USA EOR LLC | NO Production · shut in May 1, 2026 | 9,100 |
| Jan 17, 1990 | Block 31 Unit O-10-21639 | Block 31 East (Atoka) | Hilcorp Energy Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,545 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Atoka | 7,338 | -4,793 |
| BarnettBARNETT SHALE | 7,410 | -4,865 |
| MississippianMISS LIME | 7,810 | -5,265 |
| WoodfordWOODFORD SHALE | 7,840 | -5,295 |
| Devonian | 8,030 | -5,485 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,341 | 7,350 | Perforated |
| 8,052 | 8,972 | Perforated |
| 8,504 | 8,628 | Perforated |
| 8,816 | 8,872 | Perforated |
| 8,954 | 9,036 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 736 | 17.5 | 575 S |
| 13.375 | 736 | — | 575 S |
| 8.625 | 2,548 | 11 | 1,250 S |
| 8.625 | 2,548 | — | 1,250 S |
| 5.5 | 9,100 | 7.875 | 1,250 S |
| 5.5 | 9,100 | — | 1,250 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 | Oct 12, 2009 | May 14, 2009 | — |
| 00 | Sep 16, 1991 | Jun 11, 1991 | — |
| 00 | Feb 21, 1990 | Jan 24, 1990 | Yes |
| 00 | Feb 17, 1990 | — | — |
| 00 | Feb 10, 1990 | — | — |
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 42-103-33966 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-33966 → 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/10333966, documented in the API reference.