TEXAS · WELLS · ZAPATA COUNTY · API 42-505-31719 · DISTRICT 04
Whittier L. Estate #1
Zapata County · Roleta (Wilcox Consolidated) field · Producing · Vertical
Whittier L. Estate #1 (API 42-505-31719) is a well in Zapata County operated by Hilcorp Energy Company, completed September 25, 2009 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 1983 and 1990, permitted to 8,850 ft.
It was permitted by Enron Oil & Gas Company and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 2 formation tops, including Queen City, Wilcox.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Enron Oil & Gas 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
- 3,454
- 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 | Enron Oil & Gas CompanyMar 28, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,850
- total depth, ft
- 3
- permits on file
- Mar 28, 1990
- last permit issued
- Sep 25, 2009
- completed
- 0
- cumulative oil, bbl
- 620K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 25, 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Whittier, L. Estate G-4-134363 | Roleta (Wilcox, Lower) | Hilcorp Energy Company | 1 | 0 | 620K | Jan 1993 – Jul 2026 |
| — G-4-112519 | — | — | 0 | 0 | 0 | — |
Gas, mcf lease total
Last 12 months 2,874 · prior 12 4,219(-32%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Enron Oil & Gas CompanyJan 1993 → Mar 1995
- 2Conoco Inc.Apr 1995 → Dec 2002
- 3Conocophillips CompanyJan 2003 → Dec 2015
- 4Hilcorp Energy CompanyJan 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 371389-98 | Recompletion | Enron Oil & Gas Company | Apr 4, 1990 | Mar 28, 1990 | — | 8,470 |
| 371389-99 | Recompletion | Enron Oil & Gas Company | Mar 26, 1990 | Mar 28, 1990 | — | 8,470 |
| 214121-99 | Drill | HNG Oil Company | Sep 19, 1983 | Sep 23, 1983 | Oct 28, 1983 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 25, 2009 | Whittier L. Estate G-4-134363 | Roleta (Wilcox Consolidated) | Hilcorp Energy Company | Producing | 8,850 |
| Dec 9, 1983 | Whittier L. Estate G-4-112519 | Roleta (8150) | Enron Oil & Gas Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 343 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 2,715 | -2,372 |
| Wilcox | 5,108 | -4,765 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,600 | 7,608 | Perforated |
| 7,797 | 7,826 | Perforated |
| 8,535 | 8,619 | Perforated |
| 8,535 | 8,806 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,047 | 12.25 | 450 sx |
| 7 | 6,939 | 8.75 | 640 sx |
| 4.5 | 8,825 | 6.333 | 270 S |
| 4.5 | 8,825 | 6.25 | 270 sx |
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 | Feb 1, 2010 | Jan 20, 2010 | — |
| 00 | Nov 7, 1995 | Aug 11, 1995 | — |
| 00 | Oct 6, 1995 | Jun 30, 1995 | — |
| 00 | Jul 10, 1990 | May 10, 1990 | Yes |
| 00 | May 19, 1990 | — | — |
| 00 | Sep 28, 1984 | Sep 17, 1984 | — |
| 00 | Sep 22, 1984 | Sep 17, 1984 | — |
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 42-505-31719 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-31719 → 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/50531719, documented in the API reference.