WELL · 42-447-36080 · DISTRICT 7
Lambshead D-10 #B 1
Throckmorton County · Throckmorton County Regular field · Vertical
Lambshead D-10 #B 1 (API 42-447-36080) is a plugged well in Throckmorton County, plugged March 15, 2023, last operated by Petex.
The RRC has issued one drilling permit, issued February 3, 2003, permitted to 3,500 ft.
It was permitted by Throckmorton Oil, Inc. and has since transferred to Petex on the wellbore schedule.
Completion filings report 4 formation tops, including T/Flippen, T/Breckenridge, T/Swastika Sand, T/Jennings Sand(Strawn).
Its lease has reported 27.5K barrels of oil and 37.5K mcf of gas since April 2003, last reporting in April 2023.
Operator of record
Permitted by Throckmorton Oil, Inc.; 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 | Breck Operating Corp.through Oct 2017 |
| Latest permit | Throckmorton Oil, Inc.Feb 3, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,500
- total depth, ft
- 1
- permits on file
- Feb 3, 2003
- last permit issued
- Apr 2, 2003
- completed
- 27.5K
- cumulative oil, bbl
- 37.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2003 THROUGH Apr 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 2, 2003
- Shut in
- —
- Plugged
- Mar 15, 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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lambshead D-10 O-8-29225 | Throckmorton County Regular | Petex | 1 | 27.5K | 37.5K | Apr 2003 – Apr 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.Apr 2003 → Dec 2004
- 2Encon Services, Inc.Jan 2005 → Feb 2006
- 3Breck Operating Corp.Mar 2006 → Oct 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 527489-99 | Drill | Throckmorton Oil, Inc. | Jan 21, 2003 | Feb 3, 2003 | Mar 11, 2003 | 3,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-29225 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,246 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Flippen | 866 | 380 |
| T/Breckenridge | 1,005 | 241 |
| T/Swastika Sand | 1,200 | 46 |
| T/Jennings Sand(strawn) | 3,159 | -1,913 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,264 | 3,186 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 118 | 12.25 | 85 S |
| 5.5 | 3,261 | 7.875 | 100 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 27, 2003 | Apr 14, 2003 | Yes |
| 00 | May 7, 2003 | — | — |
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 42-447-36080 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-447-36080 → 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/44736080, documented in the API reference.