WELL · 42-215-31411 · DISTRICT 4
Fred W. Volz Sr. Unit #4
Hidalgo County · Vertical
Fred W. Volz SR. Unit #4 (API 42-215-31411) is a permitted well in Hidalgo County filed by Fina Oil & Chemical Company; no completion report is on file yet.
The RRC has issued 4 drilling permits (amended once) between 1983 and 2000, permitted to 12,500 ft.
Completion filings report 2 formation tops, including Frio, Vicksburg.
Operator of record
Dallas, TX · P-5 Y, filed Apr 13, 2001 · 1,328 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Fidelity Explor. & Prod. Co.through Jul 2013 |
| Latest permit | Fina Oil & Chemical CompanyAug 4, 2000 |
- 12,500
- total depth, ft
- 5
- permits on file
- Aug 4, 2000
- last permit issued
- —
- completed
- 0
- cumulative oil, bbl
- 1.26M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jan 2015
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Fred W. Volz Sr. Unit G-4-180263 | Tabasco (R) | Hilcorp Energy Company | 1 | 0 | 846K | Aug 2000 – Jan 2015 |
| Volz, F.W. Sr. Unit G-4-111173 | Tabasco (Vicksburg 10,000) | Fina Oil & Chemical Company | 1 | 0 | 0 | Jan 1993 – Aug 2000 |
| Fred W. Volz Sr. Unit G-4-143163 | Tabasco (T) | Fina Oil & Chemical Company | 1 | 0 | 418K | Jan 1993 – Aug 2000 |
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.
- 1Fina Oil & Chemical CompanyJan 1993 → Jul 2000
- 2Totalfinaelf E&P USA IncAug 2000 → Nov 2002
- 3Smith Production Inc.Dec 2002 → Apr 2005
- 4Fidelity Explor. & Prod. Co.May 2005 → Jul 2013
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 497901-99 | Recompletion | Fina Oil & Chemical Company | Jul 31, 2000 | Aug 4, 2000 | Jul 22, 2000 | 9,100 |
| 405239-98 | Other | Fina Oil & Chemical Company | Dec 23, 1992 | Nov 12, 1992 | — | 9,100 |
| 405239-99 | Recompletion | Fina Oil & Chemical Company | Oct 27, 1992 | Nov 12, 1992 | Oct 23, 1992 | 8,200 |
| 297304-99 | Recompletion | Tenneco Oil Co. | Feb 3, 1986 | Feb 10, 1986 | — | 11,100 |
| 221870-99 | Drill | Tenneco Oil Co. | Jun 20, 1984 | Nov 28, 1983 | Jan 3, 1984 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-111173 | — | — | — | — |
| — | — G-4-143163 | — | — | — | — |
| — | — G-4-180263 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 174 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,302 | 7,534 | Perforated |
| 7,714 | 7,732 | Perforated |
| 9,323 | 9,379 | Perforated |
| 10,002 | 10,012 | Perforated |
| 10,002 | 10,040 | Perforated |
| 10,020 | 10,040 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,038 | 17.5 | 953 sx |
| 9.625 | 7,380 | 12.25 | 1,378 sx |
| 5.5 | 10,238 | 6.5 | 332 sx |
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 | Apr 26, 2001 | Dec 7, 2000 | Yes |
| 00 | Jan 12, 2001 | — | — |
| 00 | Feb 23, 1993 | Dec 28, 1992 | Yes |
| 00 | Feb 22, 1993 | Dec 9, 1992 | — |
| 00 | Dec 14, 1992 | — | — |
| 00 | Mar 25, 1986 | Mar 10, 1986 | — |
| 00 | Jul 18, 1984 | May 4, 1984 | — |
| 00 | Jul 9, 1984 | May 4, 1984 | — |
| 00 | Jul 4, 1984 | May 4, 1984 | — |
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 42-215-31411 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-215-31411 → 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/21531411, documented in the API reference.