WELL · 42-355-30694 · DISTRICT 4
Walker -A- #4
Nueces County · Richard King (5550) field · Vertical
Walker -A- #4 (API 42-355-30694) is a well in Nueces County operated by Cox Edwin L. & Cox Berry R., completed October 5, 1976.
The RRC has issued one drilling permit, issued September 27, 1984, permitted to 6,500 ft.
It was permitted by Cox, Edwin L. and has since transferred to Cox Edwin L. & Cox Berry R. on the wellbore schedule.
Completion filings report 3 formation tops, including 5500 Sand, 5550 Sand, 6400 Sand.
Its lease has reported 2.4K barrels of oil and 3.61K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Cox, Edwin L.; the EWA schedule now lists a different operator.
Corpus Chrsti, TX · P-5 Y, filed Jan 13, 1987 · 139 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cox Edwin L. & Cox Berry R. |
| Production reports | Sun Exploration, Inc.through Sep 2025 |
| Latest permit | Cox, Edwin L.Sep 27, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,500
- total depth, ft
- 1
- permits on file
- Sep 27, 1984
- last permit issued
- Oct 5, 1976
- completed
- 2.4K
- cumulative oil, bbl
- 3.61K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 5, 1976
- 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 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 |
|---|---|---|---|---|---|---|
| Walker -A- O-4-8722 | Richard King (5430) | Sun Exploration, Inc. | 1 | 2.4K | 3.61K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 32 · prior 12 84(-62%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Buffco Production Inc.Nov 2008 → Apr 2010
- 2Quatro Oil and Gas, Inc.Feb 2011 → Dec 2020
- 3Sun Exploration, Inc.Jan 2021 → Sep 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 252695-99 | Recompletion | Cox, Edwin L. | Sep 13, 1984 | Sep 27, 1984 | — | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-8722 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 118 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| 5500 Sand | 5,485 | -5,367 |
| 5550 Sand | 5,549 | -5,431 |
| 6400 Sand | 6,339 | -6,221 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,409 | 5,430 | Perforated |
| — | 5,430 | Perforated |
| — | 5,549 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 317 | 12.25 | 250 S |
| 4.5 | 5,659 | 7.875 | 680 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 5, 1985 | Dec 7, 1984 | — |
| 00 | Dec 22, 1984 | — | — |
| 00 | Jan 12, 1984 | Oct 21, 1976 | — |
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 42-355-30694 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-355-30694 → 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/35530694, documented in the API reference.