WELL · 42-447-35202 · DISTRICT 7
Lambshead D-9 #1
Throckmorton County · Big Buffalo (Mississippian) field · Vertical
Lambshead D-9 #1 (API 42-447-35202) is a plugged well in Throckmorton County, plugged February 20, 2007, last operated by Breck Operating Corp..
The RRC has issued 4 drilling permits (amended once) between 1991 and 1999, permitted to 5,500 ft.
It was permitted by Throckmorton Oil, Inc. and has since transferred to Breck Operating Corp. on the wellbore schedule.
Completion filings report 2 formation tops, including Caddo, Mississippian.
Its 3 leases have reported 82.3K barrels of oil and 46.4K mcf of gas since January 1993, last reporting in August 2007. The leases carry 5 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 Mar 8, 2019 · 295 permits on file · (254) 559-0881
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Breck Operating Corp. |
| Production reports | Breck Operating Corp.through Feb 2007 |
| Latest permit | Throckmorton Oil, Inc.Jan 27, 1999 |
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
- 5
- permits on file
- Jan 27, 1999
- last permit issued
- Oct 22, 1991
- completed
- 82.3K
- cumulative oil, bbl
- 46.4K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2007
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 22, 1991
- Shut in
- —
- Plugged
- Feb 20, 2007
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lambshead D-9 O-8-26367 | Big Buffalo (Mississippian) | Breck Operating Corp. | 3 | 81K | 28K | Jan 1993 – Aug 2007 |
| Lambshead D9 O-8-28452 | Big Buffalo (Caddo) | Throckmorton Oil, Inc. | 1 | 1.35K | 6.62K | Nov 1997 – Nov 1999 |
| Lambshead D 9 G-8-140909 | Big Buffalo (Caddo) | Throckmorton Oil, Inc. | 1 | 0 | 11.8K | Jan 1993 – Dec 1998 |
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 → Nov 2005
- 3Breck Operating Corp.Feb 2007 → Feb 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 481813-99 | Recompletion | Throckmorton Oil, Inc. | Dec 28, 1998 | Jan 27, 1999 | Dec 11, 1998 | 4,600 |
| 470883-99 | Recompletion | Throckmorton Oil, Inc. | Dec 5, 1997 | Dec 11, 1997 | Nov 22, 1997 | 4,320 |
| 396528-99 | Other | Throckmorton Oil, Inc. | Feb 7, 1992 | Feb 13, 1992 | Feb 14, 1992 | 5,000 |
| 390026-98 | Drill | Throckmorton Oil, Inc. | Nov 15, 1991 | Jul 19, 1991 | Oct 1, 1991 | 5,500 |
| 390026-99 | Drill | Throckmorton Oil, Inc. | Jul 18, 1991 | Jul 19, 1991 | — | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-140909 | — | — | — | — |
| — | — O-8-26367 | — | — | — | — |
| — | — O-8-26367 | — | — | — | — |
| — | — O-8-26367 | — | — | — | — |
| — | — O-8-28452 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,391 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CaddoCADDO UPR. | 4,243 | -2,852 |
| Caddo | 4,336 | -2,945 |
| MississippianMISSISSIPPI | 4,686 | -3,295 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,243 | 4,255 | Perforated |
| 4,336 | 4,348 | Perforated |
| 4,686 | 4,714 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 778 | 12.5 | 354 S |
| 7 | 4,562 | 8.75 | 101 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 18, 1999 | Jul 15, 1999 | Yes |
| 00 | Aug 4, 1999 | Nov 7, 1991 | Yes |
| 00 | Jun 19, 1998 | Dec 29, 1997 | Yes |
| 00 | May 13, 1998 | Nov 7, 1991 | Yes |
| 00 | Apr 14, 1992 | Mar 5, 1992 | Yes |
| 00 | Apr 2, 1992 | Nov 7, 1991 | Yes |
| 00 | Mar 26, 1992 | — | — |
| 00 | Dec 11, 1991 | Nov 7, 1991 | Yes |
| 00 | Dec 4, 1991 | — | — |
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 42-447-35202 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-447-35202 → 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/44735202, documented in the API reference.