WELL · 42-505-35877 · DISTRICT 4
Yzaguirre-Leo Gas Unit #16
Zapata County · Wildcat field · Vertical
Yzaguirre-Leo Gas Unit #16 (API 42-505-35877) is a plugged well in Zapata County, plugged January 19, 2008, last operated by Forest Oil Corporation.
The RRC has issued one drilling permit, issued June 14, 2007, permitted to 11,900 ft.
It was permitted by Houston Exploration Company, The and has since transferred to Forest Oil Corporation on the wellbore schedule.
Completion filings report 5 formation tops, including Perdido Unconformity, Topp Perdido A, Base Perdido A, Top Perdido B.
Operator of record
Permitted by Houston Exploration Company, The; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Sep 11, 2015 · 1,861 permits on file · (866) 520-0402
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Forest Oil Corporation |
| Production reports | none |
| Latest permit | Houston Exploration Company, TheJun 14, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,900
- total depth, ft
- 1
- permits on file
- Jun 14, 2007
- last permit issued
- Aug 6, 2007
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2007 THROUGH Jan 2008
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 6, 2007
- Shut in
- —
- Plugged
- Jan 19, 2008
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 |
|---|---|---|---|---|---|---|
| Yzaguirre-Leo Gas Unit G-4-230499 | Wildcat | Forest Oil Corporation | 1 | 0 | 0 | Aug 2007 – Jan 2008 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 638816-99 | Drill | Houston Exploration Company, The | May 10, 2007 | Jun 14, 2007 | Jul 18, 2007 | 11,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-230499 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 370 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Perdido Unconformity | 10,535 | -10,165 |
| Topp Perdido A | 10,570 | -10,200 |
| Base Perdido A | 10,700 | -10,330 |
| Top Perdido B | 11,230 | -10,860 |
| Base Perdido B | 11,300 | -10,930 |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 773 | 12.25 | 350 S |
| 7 | 9,004 | 8.75 | 350 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 8, 2007 | Sep 12, 2007 | Yes |
| 00 | Oct 31, 2007 | — | — |
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 42-505-35877 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-35877 → 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/50535877, documented in the API reference.