WELL · 42-479-35905 · DISTRICT 4
Yates #4
Webb County · Vaquillas Ranch (Lobo Cons.) field · Producing · Vertical
Yates #4 (API 42-479-35905) is a well in Webb County operated by Hilcorp Energy Company, completed November 10, 1993 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 25, 1993, permitted to 12,200 ft.
It was permitted by Transamerican Natural Gas Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including T/Wilcox, B/Wilcox, Wills Point.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Transamerican Natural Gas Corp.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,454
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Transamerican Natural Gas Corp.Aug 25, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,200
- total depth, ft
- 1
- permits on file
- Aug 25, 1993
- last permit issued
- Nov 10, 1993
- completed
- 0
- cumulative oil, bbl
- 751K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 10, 1993
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| Yates G-4-147340 | Vaquillas Ranch (Wilcox 11,100) | Hilcorp Energy Company | 1 | 0 | 751K | Nov 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 5,151 · prior 12 7,653(-33%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Transamerican Natural Gas Corp.Nov 1993 → May 1997
- 2Conoco Inc.Jun 1997 → Apr 2002
- 3Conocophillips CompanyOct 2005 → Dec 2015
- 4Hilcorp Energy CompanyJan 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 415168-99 | Drill | Transamerican Natural Gas Corp. | Aug 20, 1993 | Aug 25, 1993 | Sep 5, 1993 | 12,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-147340 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 620 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Wilcox | 6,003 | -5,383 |
| B/Wilcox | 7,751 | -7,131 |
| Wills Point | 11,800 | -11,180 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,673 | 11,120 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 780 | 12.25 | 350 S |
| 7 | 8,434 | 8.75 | 265 S |
| 4.5 | 12,198 | 6.125 | 435 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 | Jan 24, 1994 | Dec 6, 1993 | Yes |
| 00 | Dec 8, 1993 | — | — |
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 42-479-35905 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-35905 → 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/47935905, documented in the API reference.