WELL · 42-495-02277 · DISTRICT 8
Keystone Silurian Unit #1S
Winkler County · Keystone (Silurian) field · Vertical
Keystone Silurian Unit #1S (API 42-495-02277) is a plugged well in Winkler County, plugged June 19, 1991, last operated by Xto Energy Inc..
The RRC has issued one drilling permit, issued July 2, 1996, permitted to 4,600 ft.
It was permitted by BC Operating, Inc. and has since transferred to Xto Energy Inc. on the wellbore schedule.
Its 3 leases have reported 339K barrels of oil and 419K mcf of gas since January 1993, last reporting in July 2026. The leases carry 49 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by BC Operating, Inc.; the EWA schedule now lists a different operator.
Spring, TX · P-5 Y, filed Feb 4, 2026 · 16,156 permits on file · (832) 625-1100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | XTO Energy Inc. |
| Production reports | Teke Production LLCthrough Dec 2023 |
| Latest permit | BC Operating, Inc.Jul 2, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,600
- total depth, ft
- 1
- permits on file
- Jul 2, 1996
- last permit issued
- Dec 1, 1974
- completed
- 339K
- cumulative oil, bbl
- 419K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 1, 1974
- Shut in
- —
- Plugged
- Jun 19, 1991
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 3 leases this well is completed on; they carry 49 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McCutchen, W.A. O-10-35095 | Keystone (San Andres) | Teke Production LLC | 8 | 147K | 263K | Oct 1996 – Jul 2026 |
| Keystone Silurian Unit O-10-23371 | Keystone (Silurian) | XTO Energy Inc. | 41 | 192K | 156K | Jan 1993 – Sep 2019 |
| — G-10-79306 | — | — | 0 | 0 | 0 | — |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pennzoil Petroleum CompanyJan 1993 → Jan 1995
- 2Pennzoil Exploration & Prod. Co.Feb 1995 → May 1998
- 3BC Operating, Inc.Oct 1996 → Feb 1998
- 4Taurus Exploration U.S.A., Inc.Mar 1998 → Nov 1998
- 5Herricks Oil Co.Jun 1998 → Jun 1999
- 6Energen Resources CorporationDec 1998 → Jan 2019
- 7Bass Enterprises Production Co.Jul 1999 → Dec 2006
- 8Bepco, L.P.Jan 2007 → Nov 2008
- 9Bopco, L.P.Dec 2008 → Nov 2017
- 10XTO Energy Inc.Dec 2017 → Feb 2019
- 11Diamondback E&P LLCFeb 2019 → Jun 2019
- 12Sabinal Energy Operating, LLCJul 2019 → Jul 2022
- 13K3 Productions LLCAug 2022 → Jun 2023
- 14Teke Production LLCJul 2023 → Dec 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 450273-99 | Reenter | BC Operating, Inc. | Jul 12, 1996 | Jul 2, 1996 | Aug 23, 1996 | 4,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-79306 | — | — | — | — |
| — | — O-10-23371 | — | — | — | — |
| — | — O-10-35095 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,287 | 4,575 | Perforated |
| 7,330 | 7,355 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 213 | — | — |
| 13.375 | 231 | 17 | 225 S |
| 13.375 | 232 | — | 225 S |
| 8.625 | 2,474 | — | — |
| 8.625 | 2,488 | — | 1,175 S |
| 5.5 | 8,116 | — | — |
| 5.5 | 8,128 | — | 200 S |
| 5.5 | 8,129 | — | 825 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 | Nov 26, 1996 | Oct 18, 1996 | Yes |
| 00 | Nov 13, 1996 | — | — |
| 00 | Jan 12, 1984 | Nov 17, 1978 | — |
| 00 | Jan 12, 1984 | Jun 10, 1960 | — |
| 00 | Jan 12, 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 42-495-02277 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-02277 → 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/49502277, documented in the API reference.