WELL · 42-353-31641 · DISTRICT 7
Sanderson #7R
Nolan County · Suggs (Ellenburger) field · Vertical
Sanderson #7R (API 42-353-31641) is a plugged well in Nolan County, plugged July 12, 1995, last operated by Cockrell Production CO. Inc..
The RRC has issued 3 drilling permits between 1984 and 2011, permitted to 6,700 ft.
It was permitted by Clear Fork, Incorporated and has since transferred to Cockrell Production CO. Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Cisco, Canyon, Caddo, Ellenburger.
Its 3 leases have reported 93.5K barrels of oil and 187K mcf of gas since January 1993, last reporting in July 2026. The leases carry 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Clear Fork, Incorporated; the EWA schedule now lists a different operator.
Irving, TX · P-5 Y, filed Jan 4, 2026 · 127 permits on file · (817) 761-5005
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cockrell Production Co. Inc. |
| Production reports | Clear Fork, Incorporatedthrough Apr 2026 |
| Latest permit | Clear Fork, IncorporatedJul 1, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,700
- total depth, ft
- 3
- permits on file
- Jul 1, 2011
- last permit issued
- May 4, 1985
- completed
- 93.5K
- cumulative oil, bbl
- 187K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 4, 1985
- Shut in
- —
- Plugged
- Jul 12, 1995
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Sanderson O-8-30912 | White Hat, SE. (Cisco) | Clear Fork, Incorporated | 1 | 34.3K | 61.8K | Mar 2011 – Jul 2026 |
| Sanderson O-8-29545 | Lazarus (Strawn) | Clear Fork, Incorporated | 1 | 38K | 105K | Feb 2005 – Jun 2012 |
| Sanderson O-8-18328 | Suggs (Ellenburger) | Cockrell Production Co., Inc. | 5 | 21.1K | 20.2K | Jan 1993 – Aug 2003 |
Oil, barrels lease total
Last 12 months 596 · prior 12 682(-13%)
Gas, mcf lease total
Last 12 months 879 · prior 12 1,144(-23%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Oryx Energy CompanyJan 1993 → Jul 1994
- 2Cockrell Production Co., Inc.Aug 1994 → Apr 1998
- 3Clear Fork, IncorporatedFeb 2005 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 715916-99 | Recompletion | Clear Fork, Incorporated | May 9, 2011 | Jul 1, 2011 | Mar 12, 2011 | 6,700 |
| 553935-99 | Reenter | Clear Fork, Incorporated | Nov 19, 2004 | Nov 23, 2004 | — | 6,700 |
| 243725-99 | Drill | Sun Expl. & Prod. Co.-Abilene | Jul 17, 1984 | Jun 29, 1984 | — | 6,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-18328 | — | — | — | — |
| — | — O-8-29545 | — | — | — | — |
| — | — O-8-30912 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,186 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cisco | 3,998 | -1,812 |
| CanyonCANYON REEF | 4,751 | -2,565 |
| Caddo | 6,281 | -4,095 |
| Ellenburger | 6,524 | -4,338 |
| CanyonCANYON REEF | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,073 | 4,076 | Perforated |
| 5,998 | 6,038 | Perforated |
| 6,524 | 6,565 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 418 | 12.25 | 200 S |
| 5.5 | 6,700 | 7.875 | 1,400 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 | Mar 30, 2012 | Jan 12, 2012 | — |
| 00 | Jul 6, 2005 | Feb 15, 2005 | Yes |
| 00 | Apr 18, 2005 | — | — |
| 00 | Jun 20, 1985 | Jun 3, 1985 | — |
| 00 | Jun 14, 1985 | — | — |
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 42-353-31641 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-31641 → 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/35331641, documented in the API reference.