TEXAS · WELLS · STARR COUNTY · WALKER, BILLY L. LEASE · API 42-427-32673 · DISTRICT 04
Walker Billy L. #3
Starr County · Arroyo Los Olmos (Yegua 25) field · Vertical
Walker Billy L. #3 (API 42-427-32673) is a plugged well in Starr County, plugged March 20, 2014, last operated by Mortimer Production Company.
The RRC has issued one drilling permit, issued April 14, 1994, permitted to 6,100 ft.
It was permitted by Mortimer Exploration Company and has since transferred to Mortimer Production Company on the wellbore schedule.
Completion filings report one formation top, including Yegua.
Operator of record
Permitted by Mortimer Exploration Company; the EWA schedule now lists a different operator.
- Based in
- San Antonio, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 12, 2025
- Permits on file
- 53
- Phone
- (210) 821-6168
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mortimer Production Company |
| Production reports | Mortimer Production Companythrough Jun 2013 |
| Latest permit | Mortimer Exploration CompanyApr 14, 1994 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,100
- total depth, ft
- 1
- permits on file
- Apr 14, 1994
- last permit issued
- Jun 15, 1994
- completed
- 0
- cumulative oil, bbl
- 268K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 1994 THROUGH Jul 2014
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 15, 1994
- Shut in
- —
- Plugged
- Mar 20, 2014
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, Billy L. G-4-150189 | Arroyo Los Olmos (Yegua 25) | Mortimer Production Company | 1 | 0 | 268K | Jun 1994 – Jul 2014 |
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.
- 1Mortimer Exploration CompanyJun 1994 → Jun 2001
- 2Mortimer Production CompanyJul 2011 → Jun 2013
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 423026-99 | Drill | Mortimer Exploration Company | Apr 14, 1994 | Apr 14, 1994 | Apr 22, 1994 | 6,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 15, 1994 | Walker Billy L. G-4-150189 | Arroyo Los Olmos (Yegua 25) | Mortimer Production Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 191 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yegua | 3,602 | -3,411 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,305 | 5,637 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 493 | 12.25 | 200 S |
| 7 | 4,412 | 8.75 | 287 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 | Sep 30, 1994 | Jun 30, 1994 | Yes |
| 00 | Jul 29, 1994 | — | — |
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 42-427-32673 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-32673 → 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/42732673, documented in the API reference.