WELL · 42-505-36335 · DISTRICT 4
Martinez Minerals #4ST
Zapata County · Stirling (Wilcox Consolidated) field · Producing · Directional
Martinez Minerals #4ST (API 42-505-36335) is a well in Zapata County operated by Mountain V Texas LLC, completed July 15, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued October 24, 2008, permitted to 13,000 ft.
It was permitted by Eog Resources, Inc. and has since transferred to Mountain V Texas LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Queen City, Wilcox, Lwr. Wilcox, Lobo Unc..
No lease production has been reported under this well’s leases.
Operator of record
Permitted by EOG Resources, Inc.; the EWA schedule now lists a different operator.
- Based in
- Buckhannon, WV
- P-5 status
- Active (A)
- P-5 last filed
- Sep 11, 2025
- Phone
- (304) 842-6320
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mountain V Texas LLC |
| Production reports | Mountain V Texas, LLCthrough Apr 2026 |
| Latest permit | EOG Resources, Inc.Jan 29, 2009 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,000
- total depth, ft
- 2
- permits on file
- Jan 29, 2009
- last permit issued
- Jul 15, 2017
- completed
- 0
- cumulative oil, bbl
- 662K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 15, 2017
- Shut in
- —
- 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 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 |
|---|---|---|---|---|---|---|
| Martinez Minerals G-4-251834 | Stirling (Wilcox Consolidated) | Mountain V Texas, LLC | 1 | 0 | 662K | Feb 2009 – Jul 2026 |
Gas, mcf lease total
Last 12 months 21,366 · prior 12 21,644(-1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Feb 2009 → Aug 2016
- 2Smith Production Inc.Sep 2016 → Mar 2026
- 3Mountain V Texas, LLCApr 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 673584-98 | Drill | EOG Resources, Inc. | Jan 27, 2009 | Jan 29, 2009 | Dec 27, 2008 | 13,000 |
| 673584-99 | Drill | EOG Resources, Inc. | Oct 22, 2008 | Oct 24, 2008 | — | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-251834 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 498 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 3,780 | -3,282 |
| Wilcox | 6,535 | -6,037 |
| WilcoxWILCOX (TOP) | 6,535 | -6,037 |
| WilcoxLOWER WILCOX | 8,200 | -7,702 |
| Lwr. Wilcox | 8,200 | -7,702 |
| Lobo Unc. | 11,430 | -10,932 |
| Lobo Unconsolidated | 11,430 | -10,932 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,565 | 9,585 | Perforated |
| 10,660 | 10,724 | Perforated |
| 10,660 | 11,292 | Perforated |
| 11,281 | 11,292 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 820 | 12.25 | 313 S |
| 7 | 9,087 | 8.75 | 208 S |
| 3.5 | 11,568 | 6.125 | 335 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 | Oct 10, 2017 | Sep 12, 2017 | — |
| 00 | Sep 30, 2010 | Oct 7, 2009 | — |
| 00 | Dec 22, 2009 | Apr 8, 2009 | Yes |
| 00 | Oct 20, 2009 | — | — |
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 42-505-36335 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-36335 → 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/50536335, documented in the API reference.