WELL · 42-353-31931 · DISTRICT 7
Cochran G.W. #43
Nolan County · Suggs (Ellenburger) field · Vertical
Cochran G.W. #43 (API 42-353-31931) is a plugged well in Nolan County, plugged January 26, 2017, last operated by Robertson Resources Inc..
The RRC has issued 2 drilling permits between 1986 and 1996, permitted to 6,650 ft.
Completion filings report 4 formation tops, including Cisco, Canyon, Caddo, Ellenburger.
Its 3 leases have reported 91.9K barrels of oil and 67.9K mcf of gas since January 1993, last reporting in July 2026. The leases carry 16 wells, so these are lease totals, not this well alone.
Operator of record
Horseshoe Bay, TX · P-5 X, filed Feb 26, 2026 · 32 permits on file · (432) 688-5106
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Robertson Resources Inc. |
| Production reports | W & W Production, LLCthrough Jul 2017 |
| Latest permit | Robertson Resources, Inc.Jul 2, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,650
- total depth, ft
- 2
- permits on file
- Jul 2, 1996
- last permit issued
- Apr 4, 1986
- completed
- 91.9K
- cumulative oil, bbl
- 67.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 4, 1986
- Shut in
- —
- Plugged
- Jan 26, 2017
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 16 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Group 4000 Unit O-8-10432 | Group (4000) | Winchester Energy, LLC | 14 | 91.7K | 67.9K | Jan 1993 – Jul 2026 |
| Group 4000 Unit "B" O-8-29725 | Group (4000) | Robertson Resources, Inc. | 1 | 0 | 0 | May 2006 – Feb 2017 |
| Cochran, G.W. O-8-23687 | Suggs (Ellenburger) | Robertson Resources, Inc. | 1 | 133 | 1 | Jan 1993 – Oct 1996 |
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.
- 1Genie CorporationJan 1993 → Dec 1994
- 2Oryx Energy CompanyMay 1993 → May 1993
- 3Chisholm ExplorationJan 1995 → Feb 1995
- 4Robertson Resources, Inc.Mar 1995 → Aug 2001
- 5Xeric Oil & Gas CorporationSep 2001 → Nov 2003
- 6Alegre Energy, Inc.Dec 2003 → May 2006
- 7Alegre Energy Operating, LPDec 2004 → May 2005
- 8Delco Operating Company LPJun 2006 → Jun 2007
- 9Midwestern EnergyJul 2007 → Apr 2015
- 10W & W Production, LLCMay 2015 → Jul 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 449656-99 | Recompletion | Robertson Resources, Inc. | Jun 24, 1996 | Jul 2, 1996 | Jul 24, 1996 | 4,200 |
| 296132-99 | Drill | Texaco Producing Inc. | Jan 24, 1986 | Jan 24, 1986 | Feb 23, 1986 | 6,650 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-10432 | — | — | — | — |
| — | — O-8-23687 | — | — | — | — |
| — | — O-8-29725 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,257 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cisco | 4,057 | -1,800 |
| Cisco | 4,490 | -2,233 |
| CanyonCANYON REEF | 5,165 | -2,908 |
| CanyonCANYON REEF | 5,244 | -2,987 |
| Caddo | 6,360 | -4,103 |
| Ellenburger | 6,530 | -4,273 |
| Ellenburger | 6,543 | -4,286 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,004 | 4,010 | Perforated |
| 6,533 | 6,559 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 407 | 12.25 | 400 S |
| 5.5 | 6,650 | 7.875 | 1,700 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 12, 2006 | Aug 6, 1996 | Yes |
| 00 | Oct 25, 1996 | Aug 6, 1996 | Yes |
| 00 | Sep 17, 1996 | — | — |
| 00 | May 14, 1986 | Apr 22, 1986 | Yes |
| 00 | May 3, 1986 | — | — |
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 42-353-31931 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-31931 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 1.95M
- bbl, all reported
- Nov 2016
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000085007 | H-1 Injection | Plugged Feb 6, 2017 | 2,500 | 2,000 | 4,004–4,090 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/35331931, documented in the API reference.