WELL · 42-353-31705 · DISTRICT 7
Cochran J.H. A #1A
Nolan County · Suggs (Ellenburger) field · Vertical
Cochran J.H. A #1A (API 42-353-31705) is a well in Nolan County operated by Goodrock Natural Resources LLC, completed December 28, 1984.
The RRC has issued 2 drilling permits between 1984 and 1995, permitted to 6,900 ft.
It was permitted by Robertson Resources, Inc. and has since transferred to Goodrock Natural Resources LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Canyon, Odom, Caddo, Ellenburger.
Its 2 leases have reported 75K barrels of oil and 79.9K mcf of gas since January 1993, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.
Operator of record
Goodrock Natural Resources LLC
Permitted by Robertson Resources, Inc.; the EWA schedule now lists a different operator.
- Based in
- Tulsa, OK
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Nov 25, 2025
- Permits on file
- 59
- Phone
- (918) 398-0400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Goodrock Natural Resources LLC |
| Production reports | Goodrock Natural Resources, LLCthrough Dec 2023 |
| Latest permit | Robertson Resources, Inc.Sep 20, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,900
- total depth, ft
- 2
- permits on file
- Sep 20, 1995
- last permit issued
- Dec 28, 1984
- completed
- 75K
- cumulative oil, bbl
- 79.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 28, 1984
- 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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cochran Est. O-8-5766 | Group (4000) | Bustamante Oil Company | 3 | 14.4K | 38.6K | Jan 1993 – Jul 2026 |
| Cochran, J.H. "A" O-8-22006 | Suggs (Ellenburger) | Goodrock Natural Resources, LLC | 3 | 60.6K | 41.3K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Foree, R. L. Trust "A"Jan 1993 → Oct 1993
- 2Oryx Energy CompanyJan 1993 → Oct 1994
- 3R & P OperatingJan 1994 → Jul 1994
- 4Robertson Resources, Inc.Aug 1994 → Jun 2009
- 5Samson Resources CompanyNov 1994 → Mar 1995
- 6Samson Hydrocarbons CompanyApr 1995 → Jul 1996
- 7Samson Lone Star LPAug 1996 → Jun 2007
- 8Samson Lone Star, LLCJul 2007 → Dec 2010
- 9Three Rivers Operating Co LLCJan 2011 → Jul 2012
- 10COG Operating LLCAug 2012 → Sep 2012
- 11Legacy Reserves Operating LPMar 2013 → Oct 2018
- 12Goodrock Natural Resources, LLCNov 2018 → Dec 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 440036-99 | Recompletion | Robertson Resources, Inc. | Sep 19, 1995 | Sep 20, 1995 | Sep 22, 1995 | 6,775 |
| 257308-99 | Drill | Sun Expl. & Prod. Co.-Abilene | Nov 9, 1984 | Nov 9, 1984 | Nov 11, 1984 | 6,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-5766 | — | — | — | — |
| — | — O-8-22006 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,278 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CanyonCANYON REEF | 5,495 | -3,217 |
| Odom | 6,216 | -3,938 |
| Caddo | 6,410 | -4,132 |
| Ellenburger | 6,583 | -4,305 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,068 | 4,071 | Perforated |
| 6,585 | 6,682 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 395 | 12.25 | 300 S |
| 5.5 | 6,775 | 7.875 | 1,550 S |
| 5.5 | 6,775 | 8.75 | 1,550 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 15, 1995 | Sep 27, 1995 | Yes |
| 00 | Oct 24, 1995 | Jan 7, 1985 | — |
| 00 | Jan 31, 1985 | Jan 7, 1985 | — |
| 00 | Jan 26, 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 42-353-31705 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-31705 → 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/35331705, documented in the API reference.