TEXAS · WELLS · ZAPATA COUNTY · API 42-505-35589 · DISTRICT 04
3J Zapata Ranches #1ST
Zapata County · Exsun (Lobo Cons.) field · Producing · Directional
3j Zapata Ranches #1ST (API 42-505-35589) is a well in Zapata County operated by Hilcorp Energy Company, completed February 16, 2009 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 2006 and 2008, permitted to 11,400 ft.
It was permitted by Newfield Exploration Company and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 4 formation tops, including Queen City, Wilcox, Lobo Unconformity, Unconformable Surface.
Its 2 leases have reported 423K mcf of gas since July 2006, last reporting volume in April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Newfield Exploration Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,458
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Newfield Exploration CompanyDec 5, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,400
- total depth, ft
- 2
- permits on file
- Dec 5, 2008
- last permit issued
- Feb 16, 2009
- completed
- 0
- cumulative oil, bbl
- 423K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2009 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 16, 2009
- 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 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 |
|---|---|---|---|---|---|---|
| 3J Zapata Ranches G-4-247380 | Exsun (Lobo Cons.) | Hilcorp Energy Company | 1 | 0 | 423K | Feb 2009 – Apr 2026 |
| 3J Zapata Ranches G-4-221701 | Wildcat | Newfield Exploration Company | 1 | 0 | 0 | Jul 2006 – — |
Gas, mcf lease total
Last 12 months 7,893 · prior 12 7,624(+4%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Newfield Exploration CompanyOct 2009 → Sep 2016
- 2Hilcorp Energy CompanyOct 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 675759-99 | Recompletion | Newfield Exploration Company | Dec 2, 2008 | Dec 5, 2008 | Jan 26, 2009 | 11,500 |
| 619495-99 | Drill | Newfield Exploration Company | May 18, 2006 | May 19, 2006 | Jun 30, 2006 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 16, 2009 | 3J Zapata Ranches G-4-247380 | Exsun (Lobo Cons.) | Hilcorp Energy Company | Producing | 11,400 |
| Jul 18, 2006 | 3J Zapata Ranches G-4-221701 | Wildcat | Newfield Exploration Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 325 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen CityTOP QUEEN CITY | 1,820 | -1,495 |
| WilcoxTOP WILCOX | 4,540 | -4,215 |
| Lobo Unconformity | 8,650 | -8,325 |
| Unconformable Surface | 8,680 | -8,355 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,012 | 10,052 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 835 | 14.75 | 1,015 S |
| 7.625 | 7,008 | 9.875 | 635 S |
| 2.875 | 10,298 | 6.75 | 590 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 12, 2009 | Mar 17, 2009 | Yes |
| 00 | May 28, 2009 | — | — |
| 00 | Mar 9, 2007 | Aug 10, 2006 | Yes |
| 00 | Nov 17, 2006 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Feb 20, 2012. Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Queen City, Wilcox, Lobo Unconformity, Unconformable Surface | TIFF | 80 to 11,344 | Feb 20, 2012run Jul 17, 2006 | 12.1 |
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Queen City, Wilcox, Lobo Unconformity, Unconformable Surface | TIFF | 80 to 11,344 | Aug 6, 2009run Jul 17, 2006 | 12.5 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-505-35589 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-35589 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/50535589, documented in the API reference.