TEXAS · WELLS · WEBB COUNTY · HIRSCH ESTATE 858 LEASE · API 42-479-36557 · DISTRICT 04
Hirsch Estate 858 #5
Webb County · Big Cowboy (Lobo) field · Temp Abandoned · Directional
Hirsch Estate 858 #5 (API 42-479-36557) is a well in Webb County operated by Hilcorp Energy Company, completed November 13, 1996 and listed as temp abandoned on the RRC schedule, shut in March 1, 2016.
The RRC has issued one drilling permit, issued August 26, 1996, permitted to 8,940 ft.
It was permitted by Conoco Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Wilcox, Base Of Lwr Wilcox, Wills Point.
Its lease has reported 10.4K barrels of oil and 329K mcf of gas since November 1996, with no volume in the three years through April 2026.
Operator of record
Permitted by Conoco Inc.; 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 Feb 2016 |
| Latest permit | Conoco Inc.Aug 26, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,940
- total depth, ft
- 1
- permits on file
- Aug 26, 1996
- last permit issued
- Nov 13, 1996
- completed
- 10.4K
- cumulative oil, bbl
- 329K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1996 THROUGH Feb 2016
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 13, 1996
- Shut in
- Mar 1, 2016
- 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 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 |
|---|---|---|---|---|---|---|
| Hirsch Estate 858 G-4-161957 | Big Cowboy (Lobo) | Hilcorp Energy Company | 1 | 10.4K | 329K | Nov 1996 – Feb 2016 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Conoco Inc.Nov 1996 → Dec 2002
- 2Conocophillips CompanyJan 2003 → Dec 2015
- 3Hilcorp Energy CompanyJan 2016 → Feb 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 451915-99 | Drill | Conoco Inc. | Aug 26, 1996 | Aug 26, 1996 | Oct 11, 1996 | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 13, 1996 | Hirsch Estate 858 G-4-161957 | Big Cowboy (Lobo) | Hilcorp Energy Company | Temp Abandoned · shut in Mar 1, 2016 | 8,940 |
Formation tops
As filed on W-2/G-1. Subsea from 541 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| WilcoxBASE OF LOWER WILCOX | 6,350 | -5,809 |
| Base of LWR Wilcox | 6,350 | -5,809 |
| Wills Point | 8,900 | -8,359 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,576 | 7,584 | Perforated |
| 7,890 | 7,898 | Perforated |
| 8,044 | 8,058 | Perforated |
| 8,542 | 8,554 | Perforated |
| 8,542 | 8,730 | Perforated |
| 8,662 | 8,670 | Perforated |
| 8,724 | 8,730 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 529 | 12.25 | 240 S |
| 7 | 7,150 | 8.75 | 680 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 | Mar 28, 1997 | Jan 21, 1997 | — |
| 00 | Mar 26, 1997 | Nov 27, 1996 | Yes |
| 00 | Mar 12, 1997 | — | — |
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 42-479-36557 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36557 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/47936557, documented in the API reference.