WELL · 42-447-35193 · DISTRICT 7
Lambshead B-8 #1
Throckmorton County · Big Buffalo (Mississippian) field · Vertical
Lambshead B-8 #1 (API 42-447-35193) is a well in Throckmorton County operated by Petex, completed April 28, 2004.
The RRC has issued one drilling permit, issued June 20, 1991, permitted to 5,500 ft.
It was permitted by Throckmorton Oil, Inc. and has since transferred to Petex on the wellbore schedule.
Completion filings report 3 formation tops, including Tannehill, Caddo, Mississippian.
Its 2 leases have reported 291K barrels of oil and 372K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
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 | Petexthrough Jun 2023 |
| Latest permit | Throckmorton Oil, Inc.Jun 20, 1991 |
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
- 1
- permits on file
- Jun 20, 1991
- last permit issued
- Apr 28, 2004
- completed
- 291K
- cumulative oil, bbl
- 372K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 28, 2004
- Shut in
- —
- Plugged
- —
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lambshead "B-8" G-8-292809 | Big Buffalo (Mississippian) | Petex | 1 | 0 | 29.6K | Jun 2022 – Jul 2026 |
| Lambshead "B-8" O-8-26268 | Big Buffalo (Mississippian) | Petex | 1 | 291K | 342K | Jan 1993 – Aug 2022 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
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 → Apr 2019
- 4PetexJun 2022 → Jun 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 389159-99 | Drill | Throckmorton Oil, Inc. | Jun 20, 1991 | Jun 20, 1991 | Jun 24, 1991 | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-292809 | — | — | — | — |
| — | — O-8-26268 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,461 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Tannehill | 940 | 521 |
| Caddo | 4,325 | -2,864 |
| MississippianMISSISSIPPI | 4,646 | -3,185 |
| MississippianMISSISSIPPI | 4,670 | -3,209 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,790 | 4,800 | Perforated |
| 4,815 | 4,827 | Perforated |
| 4,897 | 4,919 | Perforated |
| 4,935 | 4,939 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 265 | 12.25 | 175 S |
| 5.5 | 4,960 | 7.875 | 180 S |
| 5.5 | 4,989 | 7.875 | 180 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 | Jul 29, 2022 | Jun 20, 2022 | — |
| 00 | Jul 22, 2004 | May 12, 2004 | — |
| 00 | Sep 4, 1991 | Aug 5, 1991 | Yes |
| 00 | Aug 12, 1991 | — | Yes |
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 42-447-35193 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-447-35193 → 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/44735193, documented in the API reference.