WELL · 42-505-31610 · DISTRICT 4
Muzza G. P. #4
Zapata County · Fandango (Wilcox Consolidated) field · Producing · Vertical
Muzza G. P. #4 (API 42-505-31610) is a well in Zapata County operated by Stx Operating Company, completed November 17, 1989 and listed as producing on the RRC schedule, shut in August 1, 2020.
The RRC has issued 2 drilling permits between 1982 and 1989, permitted to 15,861 ft.
It was permitted by Shell Western E&P Inc. and has since transferred to Stx Operating Company on the wellbore schedule.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Shell Western E&P Inc.; the EWA schedule now lists a different operator.
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Shell Western E&P Inc. |
| Production reports | Rockdale Energy, LLCthrough Jul 2020 |
| Latest permit | Shell Western E&P Inc.Aug 25, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 15,861
- total depth, ft
- 2
- permits on file
- Aug 25, 1989
- last permit issued
- Nov 17, 1989
- completed
- 0
- cumulative oil, bbl
- 23.1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 17, 1989
- Shut in
- Aug 1, 2020
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 2 leases this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Muzza, G. P. G-4-133176 | Fandango (Wilcox R) | Block "T" Petroleum, Inc. | 1 | 0 | 23.1M | Jan 1993 – Jul 2026 |
| — G-4-107064 | — | — | 0 | 0 | 0 | — |
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.
- 1Shell Western E&P Inc.Jan 1993 → Feb 2000
- 2Shell Western E&PMar 2000 → Dec 2007
- 3Comstock Oil & Gas, LPJan 2008 → Nov 2016
- 4Rockdale Energy, LLCDec 2016 → Jul 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 363162-99 | Recompletion | Shell Western E&P Inc. | Aug 24, 1989 | Aug 25, 1989 | — | 15,681 |
| 181011-99 | Drill | Shell Oil Company | Dec 22, 1982 | Dec 22, 1982 | Feb 19, 1983 | 19,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 17, 1989 | Muzza G. P. G-4-133176 | Fandango (Wilcox Consolidated) | STX Operating Company | Producing · shut in Aug 1, 2020 | 15,861 |
| Jul 13, 1983 | Muzza G. P. G-4-107064 | Fandango (Wilcox Upper T) | Shell Western E&P Inc. | Not on Schedule | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,562 | 13,600 | Perforated |
| 14,300 | 14,342 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 1,253 | 20 | 957 S |
| 11.75 | 8,364 | 14.75 | 3,100 S |
| 9.625 | 13,134 | 10.625 | 1,374 S |
| 5.5 | 15,046 | 6.75 | 770 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 | Nov 9, 1994 | Sep 21, 1994 | — |
| 00 | Feb 22, 1990 | Dec 22, 1989 | — |
| 00 | Feb 13, 1990 | — | — |
| 00 | Jan 12, 1984 | Aug 4, 1983 | — |
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 42-505-31610 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-31610 → 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/50531610, documented in the API reference.