WELL · 42-447-35261 · DISTRICT 7
Lambshead C-7 #1
Throckmorton County · Big Buffalo (Mississippian) field · Producing · Vertical
Lambshead C-7 #1 (API 42-447-35261) is a well in Throckmorton County operated by Petex, completed April 14, 1992 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 31, 1992, 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 one formation top, including Mississippian.
Its lease has reported 119K barrels of oil and 269K mcf of gas since January 1993, last reporting in July 2026.
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 Nov 2024 |
| Latest permit | Throckmorton Oil, Inc.Mar 31, 1992 |
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
- Mar 31, 1992
- last permit issued
- Apr 14, 1992
- completed
- 119K
- cumulative oil, bbl
- 269K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 14, 1992
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 C-7 O-8-26520 | Big Buffalo (Mississippian) | Petex | 1 | 119K | 269K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 0 · prior 12 1,569(-100%)
Oil, barrels lease total
Last 12 months 0 · prior 12 138(-100%)
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 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 397953-99 | Drill | Throckmorton Oil, Inc. | Mar 31, 1992 | Mar 31, 1992 | Apr 3, 1992 | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-26520 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,810 | 4,840 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 649 | 12.25 | 375 S |
| 5.5 | 4,922 | 8.75 | 130 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 | Jun 15, 1992 | May 4, 1992 | Yes |
| 00 | May 11, 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 42-447-35261 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-447-35261 → 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/44735261, documented in the API reference.