WELL · 42-505-32993 · DISTRICT 4
Yzaquirre J. #4
Zapata County · Bob West (L-24 25 26) field · Directional
Yzaquirre J. #4 (API 42-505-32993) is a plugged well in Zapata County, plugged November 9, 2012, last operated by Milagro Exploration LLC.
The RRC has issued 2 drilling permits (amended once) between 1992 and 1995, permitted to 14,000 ft.
It was permitted by Kcs Resources, Inc. and has since transferred to Milagro Exploration LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Queen City, Wilcox, U. Zapata, L. Zapata.
Operator of record
Permitted by KCS Resources, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Aug 7, 2015 · 231 permits on file · (877) 415-8112
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Milagro Exploration LLC |
| Production reports | Milagro Exploration, LLCthrough Oct 2012 |
| Latest permit | KCS Resources, Inc.Aug 18, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,000
- total depth, ft
- 3
- permits on file
- Aug 18, 1995
- last permit issued
- Apr 23, 1993
- completed
- 0
- cumulative oil, bbl
- 781K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 1993 THROUGH Nov 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 23, 1993
- Shut in
- —
- Plugged
- Nov 9, 2012
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Yzaquirre, J. G-4-145810 | Bob West (L-24, 25, 26) | Milagro Exploration, LLC | 1 | 0 | 387K | Apr 1993 – Nov 2012 |
| Yzaguirre, J. G-4-157715 | Bob West (L-12, 13, 14, 15) | Milagro Exploration, LLC | 1 | 0 | 394K | Nov 1995 – Nov 2012 |
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.
- 1Enercorp Resources, Inc.Apr 1993 → Dec 1993
- 2KCS Resources, Inc.Jan 1994 → Nov 2007
- 3Milagro Exploration, LLCDec 2007 → Oct 2012
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 438650-99 | Recompletion | KCS Resources, Inc. | Aug 8, 1995 | Aug 18, 1995 | Dec 27, 1992 | 14,000 |
| 407710-98 | Drill | Enercorp Resources, Inc. | Jun 25, 1993 | Dec 28, 1992 | — | 14,000 |
| 407710-99 | Drill | Enercorp Resources, Inc. | Dec 28, 1992 | Dec 28, 1992 | Dec 27, 1992 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-145810 | — | — | — | — |
| — | — G-4-157715 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 337 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen CityBASE OF QUEEN CITY | 3,650 | -3,313 |
| Queen City | 3,650 | -3,313 |
| Wilcox | 5,575 | -5,238 |
| U. Zapata | 6,200 | -5,863 |
| L. Zapata | 6,570 | -6,233 |
| Lopeno 1 Sand | 7,865 | -7,528 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,500 | 9,502 | Perforated |
| 9,810 | 9,812 | Perforated |
| 10,051 | 10,053 | Perforated |
| 11,892 | 11,930 | Perforated |
| 12,122 | 12,132 | Perforated |
| 12,452 | 12,496 | Perforated |
| 12,870 | 12,908 | Perforated |
| 13,209 | 13,219 | Perforated |
| 13,632 | 13,672 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,501 | 17.5 | 640 S |
| 9.625 | 7,483 | 12.25 | 265 S |
| 5.5 | 12,734 | 8.5 | 1,375 S |
| 5.5 | 13,985 | 8.5 | 1,375 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 13, 1996 | Feb 16, 1996 | Yes |
| 00 | May 7, 1996 | — | — |
| 00 | Aug 9, 1993 | Jun 25, 1993 | — |
| 00 | Jul 28, 1993 | May 6, 1993 | Yes |
| 00 | Jul 14, 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 42-505-32993 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-32993 → 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/50532993, documented in the API reference.