WELL · 42-447-35263 · DISTRICT 7
Lambshead C 10 #1D
Throckmorton County · Big Buffalo (Mississippian) field · Vertical
Lambshead C 10 #1D (API 42-447-35263) is a plugged well in Throckmorton County, plugged March 6, 2023, last operated by Petex.
The RRC has issued 2 drilling permits between 1992 and 2011, permitted to 5,500 ft.
It was permitted by Breck Operating Corp. and has since transferred to Petex on the wellbore schedule.
Completion filings report 3 formation tops, including Caddo, Mississipi, Mississippian.
Its 2 leases have reported 51.1K barrels of oil and 90.9K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Breck Operating Corp.; the EWA schedule now lists a different operator.
Breckenridge, TX · P-5 Y, filed May 4, 2026 · 124 permits on file · (254) 559-5453
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Petex |
| Production reports | Petexthrough Nov 2020 |
| Latest permit | Breck Operating Corp.Oct 17, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,500
- total depth, ft
- 2
- permits on file
- Oct 17, 2011
- last permit issued
- May 5, 1992
- completed
- 51.1K
- cumulative oil, bbl
- 90.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 5, 1992
- Shut in
- —
- Plugged
- Mar 6, 2023
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lambshead C 10 O-8-26536 | Big Buffalo (Mississippian) | Petex | 2 | 51.1K | 33.9K | Jan 1993 – Jul 2026 |
| Lambshead C-10 G-8-265301 | Big Buffalo (Caddo) | Petex | 1 | 0 | 56.9K | Dec 2011 – May 2023 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Throckmorton Oil, Inc.Jan 1993 → Dec 2004
- 2Encon Services, Inc.Jan 2005 → Feb 2006
- 3Breck Operating Corp.Mar 2006 → Jul 2019
- 4PetexAug 2019 → Nov 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 725003-99 | Recompletion | Breck Operating Corp. | Sep 26, 2011 | Oct 17, 2011 | Nov 18, 2011 | 4,800 |
| 398081-99 | Drill | Throckmorton Oil, Inc. | Apr 3, 1992 | Apr 6, 1992 | Apr 15, 1992 | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-265301 | — | — | — | — |
| — | — O-8-26536 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,435 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Caddo | 4,238 | -2,803 |
| Mississipi | 4,678 | -3,243 |
| MississippianMISSISSIPPI | 4,678 | -3,243 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,238 | 4,266 | Perforated |
| 4,678 | 4,710 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 598 | 12.25 | 340 S |
| 5.5 | 4,800 | 7.875 | 153 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, 2012 | Feb 10, 2012 | — |
| 00 | Jul 2, 1992 | May 18, 1992 | Yes |
| 00 | Jun 2, 1992 | — | — |
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 42-447-35263 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-447-35263 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/44735263, documented in the API reference.