WELL · 42-505-33161 · DISTRICT 4
Yzaguirre J. #R 1ST
Zapata County · Wildcat field · SWR-10-Well · Directional · Sidetrack
Yzaguirre J. #R 1ST (API 42-505-33161) is a well in Zapata County operated by Dolphin Petroleum LP, completed February 16, 1995 and listed as swr-10-well on the RRC schedule.
The RRC has issued 3 drilling permits (amended twice) between 1994 and 1999, permitted to 13,200 ft.
It was permitted by Kcs Resources, Inc. and has since transferred to Dolphin Petroleum LP on the wellbore schedule.
Completion filings report 5 formation tops, including Queen, Wilcox, U. Zapata, L. Zapata.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by KCS Resources, Inc.; the EWA schedule now lists a different operator.
Alice, TX · P-5 Y, filed May 29, 2025 · (361) 290-5678
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Dolphin Petroleum LP |
| Production reports | Beehive Operating, LLCthrough Apr 2026 |
| Latest permit | KCS Resources, Inc.May 17, 1999 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,200
- total depth, ft
- 5
- permits on file
- May 17, 1999
- last permit issued
- Feb 16, 1995
- completed
- 0
- cumulative oil, bbl
- 372K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 1994 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 16, 1995
- 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 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 |
|---|---|---|---|---|---|---|
| Yzaguirre, J. G-4-151740 | Bob West (L-12, 13, 14, 15) | Beehive Operating, LLC | 1 | 0 | 360K | Jul 1994 – Jul 2026 |
| Yzaguirre, J. G-4-167088 | Wildcat | Dolphin Petroleum, LP | 1 | 0 | 13K | Mar 1996 – Jul 2026 |
Gas, mcf lease total
Last 12 months 752 · prior 12 3,044(-75%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1KCS Resources, Inc.Jul 1994 → Nov 2007
- 2Milagro Exploration, LLCDec 2007 → Mar 2013
- 3Dolphin Petroleum, LPApr 2013 → Jun 2016
- 4Conway Energy Oper Services Inc.Aug 2016 → Oct 2018
- 5Beehive Operating, LLCDec 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 484380-99 | Field transfer | KCS Resources, Inc. | May 7, 1999 | May 17, 1999 | Feb 16, 1995 | 9,440 |
| 472647-99 | Recompletion | KCS Resources, Inc. | Jan 26, 1998 | Jan 26, 1998 | Feb 16, 1995 | 13,200 |
| 421409-97 | Drill · sidetrack | KCS Resources, Inc. | Nov 4, 1994 | Feb 23, 1994 | Feb 20, 1994 | 13,200 |
| 421409-98 | Drill · sidetrack | KCS Resources, Inc. | Aug 15, 1994 | Feb 23, 1994 | — | 13,200 |
| 421409-99 | Drill | KCS Resources, Inc. | Feb 23, 1994 | Feb 23, 1994 | — | 13,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-151740 | — | — | — | — |
| — | — G-4-167088 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 310 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,187 | 9,189 | Perforated |
| 9,440 | 9,442 | Perforated |
| 9,440 | 10,342 | Perforated |
| 9,818 | 9,870 | Perforated |
| 10,082 | 10,102 | Perforated |
| 10,240 | 10,254 | Perforated |
| 10,326 | 10,342 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,510 | 17.5 | 940 S |
| 9.625 | 7,738 | 12.25 | 1,480 S |
| 5.5 | 10,500 | 8.5 | 735 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 | Jun 21, 1999 | Mar 15, 1999 | — |
| 00 | Apr 1, 1998 | Jan 26, 1998 | Yes |
| 00 | Mar 27, 1998 | Jan 26, 1998 | — |
| 00 | Mar 18, 1998 | — | — |
| 00 | Dec 28, 1994 | Aug 17, 1994 | Yes |
| 00 | Dec 5, 1994 | — | — |
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 42-505-33161 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-33161 → 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/50533161, documented in the API reference.