WELL · 42-103-33479 · DISTRICT 8
Block 31 Unit #O 11
Crane County · Block 31 (Devonian) field · Vertical
Block 31 Unit #O 11 (API 42-103-33479) is a well in Crane County operated by Oxy USA Eor LLC, completed September 15, 1984.
The RRC has issued 4 drilling permits (amended once) between 1984 and 2020, permitted to 9,225 ft.
It was permitted by Oxy USA Inc. and has since transferred to Oxy USA Eor LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Grayburg, Cisco, Canyon, Strawn.
Its 4 leases have reported 15.5M barrels of oil and 974M mcf of gas since January 1993, last reporting in July 2026. The leases carry 342 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by OXY USA Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Dec 22, 2025 · 1 permits on file · (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | OXY USA EOR LLC |
| Production reports | OXY USA Inc.through Apr 2026 |
| Latest permit | OXY USA Inc.Feb 12, 2020 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,225
- total depth, ft
- 5
- permits on file
- Feb 12, 2020
- last permit issued
- Sep 15, 1984
- completed
- 15.5M
- cumulative oil, bbl
- 974M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 15, 1984
- Shut in
- —
- Plugged
- —
Surface location
31.462019, -102.452919
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Crane County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 4 leases this well is completed on; they carry 342 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Block 31 Unit G-10-257316 | Block 31 (Penn. 7620) | Hilcorp Energy Company | 1 | 0 | 648K | Apr 2010 – Jul 2026 |
| Block 31 Unit G-10-288878 | Block 31 (Devonian) | Hilcorp Energy Company | 1 | 0 | 112K | May 2018 – Jul 2026 |
| 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-10-36151 | Block 31 (Atoka 7900) | OXY USA Inc. | 10 | 339K | 2.33M | Sep 1999 – Sep 2023 |
Gas, mcf lease total
Last 12 months 4,286,473 · prior 12 5,329,334(-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 |
|---|---|---|---|---|---|---|
| 861753-99 | Recompletion | OXY USA Inc. | Feb 10, 2020 | Feb 12, 2020 | Mar 23, 2010 | 7,500 |
| 839365-98 | Recompletion | OXY USA Inc. | Mar 20, 2019 | May 14, 2018 | Mar 23, 2010 | 7,500 |
| 839365-99 | Recompletion | OXY USA Inc. | Apr 27, 2018 | May 14, 2018 | — | 7,500 |
| 490270-99 | Recompletion | Arco Permian | Dec 10, 1999 | Dec 14, 1999 | Jan 4, 2000 | 9,125 |
| 242023-99 | Drill | Arco Oil & Gas Co. | Jun 6, 1984 | Jun 14, 1984 | Jul 2, 1984 | 9,225 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-257316 | — | — | — | — |
| — | — G-10-288878 | — | — | — | — |
| — | — O-10-442 | — | — | — | — |
| — | — O-10-36151 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,566 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,586 | 7,600 | Perforated |
| 7,586 | 9,095 | Perforated |
| 8,166 | 8,699 | Perforated |
| 8,166 | 9,095 | Perforated |
| 8,168 | 8,250 | Perforated |
| 8,716 | 8,832 | Perforated |
| 8,833 | 9,095 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 3,630 | — | 1,100 S |
| 8.625 | 3,630 | 11 | 1,500 S |
| 5.5 | 9,125 | — | 1,200 S |
| 5.5 | 9,125 | 7.875 | 1,600 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 26, 2020 | Aug 5, 2019 | — |
| 00 | May 28, 2019 | Apr 2, 2019 | — |
| 00 | Sep 15, 2010 | Jul 9, 2010 | — |
| 00 | Apr 11, 2000 | Feb 11, 2000 | — |
| 00 | Mar 22, 2000 | — | — |
| 00 | Mar 23, 1995 | Dec 27, 1994 | — |
| 00 | Oct 25, 1984 | Oct 2, 1984 | — |
| 00 | Oct 13, 1984 | — | — |
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 42-103-33479 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-33479 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Block 31 Unit42-103-31977
0.8 KM · OXY USA Inc. · Section with this well →
| Grayburg | 2,876 | -314 |
| Glorieta | 4,100 | -1,538 |
| Pennsylvanian | 7,288 | -4,726 |
| Barnett | 7,643 | -5,081 |
| Woodford | 7,931 | -5,369 |
| Devonian | 8,105 | -5,543 |
| Devonian | 8,109 | -5,547 |
Block 31 Unit42-103-32857
0.8 KM · OXY USA Inc. · Section with this well →
| Grayburg | 2,901 | -341 |
| Glorieta | 4,115 | -1,555 |
| Pennsylvanian | 7,071 | -4,511 |
| Barnett | 7,518 | -4,958 |
| Atoka | 7,753 | -5,193 |
| Devonian | 8,000 | -5,440 |
Block 31 Unit42-103-31285
0.8 KM · OXY USA Inc. · Section with this well →
| Grayburg | 2,907 | -336 |
| Glorieta | 4,099 | -1,528 |
| Glorieta | 4,099 | -1,528 |
| Pennsylvanian | 7,293 | -4,722 |
| Pennsylvanian | 7,293 | -4,722 |
| Atoka | 7,609 | -5,038 |
| Devonian | 8,210 | -5,639 |
Block 31 Unit42-103-31268
0.9 KM · OXY USA Inc. · Section with this well →
| Grayburg | 2,906 | -342 |
| Wolfcamp | 6,804 | -4,240 |
| Pennsylvanian | 7,294 | -4,730 |
| Atoka | 7,599 | -5,035 |
| Devonian | 8,106 | -5,542 |
Block 31 Unit42-103-32039
1.2 KM · OXY USA Inc. · Section with this well →
| Wolfcamp | 6,761 | -4,185 |
| Cisco | 7,131 | -4,555 |
| Canyon | 7,349 | -4,773 |
| Strawn | 7,506 | -4,930 |
| Barnett | 7,529 | -4,953 |
| Atoka | 7,609 | -5,033 |
Block 31 Unit42-103-32143
1.4 KM · OXY USA Inc. · Section with this well →
| Wolfcamp | 6,911 | -4,356 |
| Cisco | 7,159 | -4,604 |
| Cisco | 7,159 | -4,604 |
| Cisco | 7,159 | -4,604 |
| Canyon | 7,290 | -4,735 |
| Strawn | 7,453 | -4,898 |
| Barnett | 7,613 | -5,058 |
| Osage (Miss Lime) | 8,119 | -5,564 |
11 TOPS · FIRST 8
Block 31 Unit42-103-32080
1.6 KM · OXY USA Inc. · Section with this well →
| Cicso | 7,167 | -4,590 |
| Strawn | 7,527 | -4,950 |
| Morrow | 7,757 | -5,180 |
Block 31 Unit42-103-33943
1.7 KM · OXY USA Inc. · Section with this well →
| Canyon | 7,350 | -4,763 |
| Strawn | 7,534 | -4,947 |
| Atoka | 7,647 | -5,060 |
| Barnett | 7,764 | -5,177 |
| Barnett | 7,772 | -5,185 |
| Mississippian | 8,062 | -5,475 |
| Woodford | 8,080 | -5,493 |
| Devonian | 8,257 | -5,670 |
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/10333479, documented in the API reference.