WELL · 42-495-10735 · DISTRICT 8
Halley S. M. #203
Winkler County · Halley (Seven Rivers) field · Vertical
Halley S. M. #203 (API 42-495-10735) is a plugged well in Winkler County, plugged September 4, 2012, last operated by Texaco Producing Inc..
The RRC has issued one drilling permit, issued July 7, 1995, permitted to 3,080 ft.
It was permitted by Midland Southwest Cold Lake Inc and has since transferred to Texaco Producing Inc. on the wellbore schedule.
Completion filings report 5 formation tops, including Anhydrite, Yates, Seven Rivers, Colby.
Its 2 leases have reported 1.01M barrels of oil and 4.17M mcf of gas since January 1993, last reporting in July 2026. The leases carry 257 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Midland Southwest Cold Lake Inc; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Sep 1, 1992 · 780 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Texaco Producing Inc. |
| Production reports | Team Operating, L.L.C.through Apr 2026 |
| Latest permit | Midland Southwest Cold Lake IncJul 7, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,080
- total depth, ft
- 1
- permits on file
- Jul 7, 1995
- last permit issued
- —
- completed
- 1.01M
- cumulative oil, bbl
- 4.17M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- Sep 4, 2012
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 257 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Halley, S. M. O-10-2435 | Halley | Team Operating, L.L.C. | 256 | 1M | 4.17M | Jan 1993 – Jul 2026 |
| Halley, S. M. O-10-32286 | Halley (Seven Rivers) | Midland Southwest Cold Lake Inc | 1 | 1.43K | 12 | Jan 1993 – Sep 1996 |
Oil, barrels lease total
Last 12 months 4,859 · prior 12 8,725(-44%)
Gas, mcf lease total
Last 12 months 0 · prior 12 2,100(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → Nov 1994
- 2Midland Southwest Cold Lake IncDec 1994 → Jun 1997
- 3Southwest Royalties, Inc.Jul 1997 → Nov 2018
- 4Champion Lone Star Operating,llcDec 2018 → Mar 2020
- 5Juno Operating Company III, LLCApr 2020 → Apr 2025
- 6Team Operating, L.L.C.May 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 437468-99 | Recompletion | Midland Southwest Cold Lake Inc | Jul 3, 1995 | Jul 7, 1995 | Mar 16, 1996 | 3,080 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-2435 | — | — | — | — |
| — | — O-10-32286 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,742 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anhydrite | 890 | 1,852 |
| Yates | 2,376 | 366 |
| Yates | 2,494 | 248 |
| Seven Rivers | 2,690 | 52 |
| Seven Rivers | 2,850 | -108 |
| Colby | 2,899 | -157 |
| Queen | 3,006 | -264 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,529 | 2,619 | Perforated |
| 2,772 | 2,796 | Perforated |
| 3,099 | 3,106 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 494 | 17.5 | 520 S |
| 9.625 | 4,368 | 12.5 | 1,950 S |
| 8.625 | 4,368 | 12.5 | 500 S |
| 5.5 | 10,729 | 8.75 | 1,550 S |
| — | 10,729 | 8.75 | 1,550 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 | Aug 24, 1999 | Mar 16, 1998 | — |
| 00 | Jul 8, 1996 | Apr 22, 1996 | Yes |
| 00 | May 29, 1996 | — | — |
| 00 | Jul 19, 1989 | Jun 27, 1989 | — |
| 00 | Jul 6, 1989 | — | — |
| 00 | Jan 12, 1984 | Sep 18, 1968 | — |
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 42-495-10735 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-10735 → 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/49510735, documented in the API reference.