WELL · 42-371-35550 · DISTRICT 8
Walker -551- #1
Pecos County · Tunis Creek (Wichita Albany) field · Vertical
Walker -551- #1 (API 42-371-35550) is a plugged well in Pecos County, plugged January 29, 1987, last operated by Mobil Producing TX. & N.M. Inc..
The RRC has issued one drilling permit, issued June 20, 1985, permitted to 4,700 ft.
It was permitted by Superior Oil Company, The and has since transferred to Mobil Producing TX. & N.M. Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Yates, Queen, Wichita-Albany.
Operator of record
Mobil Producing TX. & N.M. Inc.
Permitted by Superior Oil Company, The; the EWA schedule now lists a different operator.
Spring, TX · P-5 Y, filed May 4, 2026 · 6,763 permits on file · (281) 773-7706
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mobil Producing TX. & N.M. Inc. |
| Production reports | none |
| Latest permit | Superior Oil Company, TheJun 20, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,700
- total depth, ft
- 1
- permits on file
- Jun 20, 1985
- last permit issued
- Sep 19, 1985
- completed
- —
- cumulative oil, bbl
- —
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 19, 1985
- Shut in
- —
- Plugged
- Jan 29, 1987
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.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 278192-99 | Drill | Superior Oil Company, The | Jun 14, 1985 | Jun 20, 1985 | — | 4,700 |
Formation tops
As filed on W-2/G-1. Subsea from 2,580 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 906 | 1,674 |
| Queen | 1,544 | 1,036 |
| Wichita-AlbanyWICHITA ALBANY | 2,755 | -175 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,188 | 4,214 | Perforated |
| 4,308 | 4,452 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 40 | 13.375 | — |
| 9.625 | 605 | 12.25 | 300 S |
| 5.5 | 4,700 | 8.75 | 250 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 | Dec 30, 1985 | Oct 14, 1985 | Yes |
| 00 | Dec 12, 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 42-371-35550 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-35550 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/37135550, documented in the API reference.