WELL · 42-479-36447 · DISTRICT 4
Vaquillas Ranch 135 A #4
Webb County · Vaquillas Ranch (Lobo) field · Producing · Vertical
Vaquillas Ranch 135 A #4 (API 42-479-36447) is a well in Webb County operated by Three-C Oil And Gas, completed June 6, 1996 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 23, 1996, permitted to 9,600 ft.
It was permitted by Sonat Exploration CO. - Houston and has since transferred to Three-C Oil And Gas on the wellbore schedule.
Completion filings report 3 formation tops, including Carrizo, Big Blue, Wilcox.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Sonat Exploration Co. - Houston; the EWA schedule now lists a different operator.
Hebbronville, TX · P-5 Y, filed Jul 4, 2026 · (361) 231-2638
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Three-C Oil and Gas |
| Production reports | Three-C Oil and Gasthrough Apr 2023 |
| Latest permit | Sonat Exploration Co. - HoustonFeb 23, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,600
- total depth, ft
- 1
- permits on file
- Feb 23, 1996
- last permit issued
- Jun 6, 1996
- completed
- 0
- cumulative oil, bbl
- 2.01M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 1996 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 6, 1996
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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 |
|---|---|---|---|---|---|---|
| Vaquillas Ranch 135 A G-4-158588 | Vaquillas Ranch (Lobo) | Three-C Oil and Gas | 1 | 0 | 2.01M | Jun 1996 – Jul 2026 |
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.
- 1Sonat Exploration Co. - HoustonJun 1996 → Dec 1999
- 2EL Paso Production CompanyJan 2000 → Mar 2002
- 3United Oil & Minerals L. P.Apr 2002 → Jun 2003
- 4United Resources, LPJul 2003 → Dec 2003
- 5Westport Oil and Gas Company, LPJan 2004 → Nov 2005
- 6Houston Exploration Company, TheDec 2005 → Jun 2007
- 7Forest Oil CorporationJul 2007 → Jun 2010
- 8Columbus Energy, LLCJul 2010 → Mar 2021
- 9Three-C Oil and GasApr 2021 → Apr 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 445137-99 | Drill | Sonat Exploration Co. - Houston | Feb 23, 1996 | Feb 23, 1996 | Apr 24, 1996 | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-158588 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 548 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,310 | 8,330 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 537 | 12.25 | 200 S |
| 7 | 6,122 | 8.75 | 310 S |
| 2.875 | 8,521 | 4.5 | 125 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 | Aug 1, 1996 | Jun 21, 1996 | Yes |
| 00 | Jul 2, 1996 | — | — |
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 42-479-36447 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36447 → 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/47936447, documented in the API reference.