WELL · 42-505-36566 · DISTRICT 4
Vester #4
Zapata County · Haynes (Middle Wilcox Cons.) field · Producing · Vertical
Vester #4 (API 42-505-36566) is a well in Zapata County operated by Hilcorp Energy Company, completed December 14, 2011 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 2011 and 2014, permitted to 14,000 ft.
Completion filings report 3 formation tops, including Perdido, Lobo1, Lobo6.
No lease production has been reported under this well’s leases.
Operator of record
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,454 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Hilcorp Energy CompanyMay 3, 2014 |
- 14,000
- total depth, ft
- 3
- permits on file
- May 3, 2014
- last permit issued
- Dec 14, 2011
- completed
- 0
- cumulative oil, bbl
- 3.32M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 14, 2011
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 |
|---|---|---|---|---|---|---|
| Vester G-4-270075 | Cisco-Benavides (Lobo Cons.) | Hilcorp Energy Company | 1 | 0 | 2.07M | Nov 2011 – Jul 2026 |
| Vester G-4-276871 | Haynes (Middle Wilcox Cons.) | Hilcorp Energy Company | 1 | 0 | 1.25M | May 2013 – Jul 2026 |
Gas, mcf lease total
Last 12 months 39,059 · prior 12 32,554(+20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Forest Oil Permian CorporationNov 2011 → Nov 2012
- 2Hilcorp Energy CompanyJan 2013 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 783373-99 | Recompletion | Hilcorp Energy Company | Mar 28, 2014 | May 3, 2014 | Sep 29, 2011 | 13,500 |
| 723546-98 | Drill | Forest Oil Permian Corporation | Oct 26, 2011 | Sep 7, 2011 | Sep 29, 2011 | 14,000 |
| 723546-99 | Drill | Forest Oil Permian Corporation | Sep 1, 2011 | Sep 7, 2011 | — | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-270075 | — | — | — | — |
| — | — G-4-276871 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 461 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Perdido | 8,651 | -8,190 |
| LOBO1 | 11,848 | -11,387 |
| LOBO6 | 13,260 | -12,799 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,704 | 8,935 | Perforated |
| 12,947 | 12,963 | Perforated |
| 12,947 | 13,375 | Perforated |
| 13,264 | 13,375 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 780 | 12.25 | 365 S |
| 7 | 7,880 | 8.75 | 350 S |
| 3.5 | 13,484 | 6 | 725 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 28, 2015 | — | — |
| 00 | Jun 15, 2015 | Jan 14, 2014 | Yes |
| 00 | Oct 9, 2013 | Mar 20, 2013 | Yes |
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 42-505-36566 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-36566 → 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/50536566, documented in the API reference.