TEXAS · WELLS · HOCKLEY COUNTY · MALLET UNIT LEASE · API 42-219-01125 · DISTRICT 7B
Mallet Unit #104H
Hockley County · Slaughter field · Producing · Horizontal
Mallet Unit #104H (API 42-219-01125) is a horizontal well in Hockley County operated by Hilcorp Energy Company, completed February 22, 2025 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 4, 1997, permitted to 5,030 ft.
It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report one formation top, including San Andres.
Its lease has reported 25M barrels of oil and 40.1M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 352 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Mobil Producing TX. & N.M. 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
- 3,458
- 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 | Mobil Producing TX. & N.M. Inc.Aug 4, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,030
- total depth, ft
- 1
- permits on file
- Aug 4, 1997
- last permit issued
- Feb 22, 2025
- completed
- 25M
- cumulative oil, bbl
- 40.1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 22, 2025
- 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 lease this well is completed on; they carry 352 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mallet Unit O-11-18149 | Slaughter | Hilcorp Energy Company | 352 | 25M | 40.1M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 317,359 · prior 12 320,339(-1%)
Gas, mcf lease total
Last 12 months 190,334 · prior 12 288,650(-34%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Oct 2004
- 2Apache CorporationNov 2004 → Apr 2025
- 3Hilcorp Energy CompanyMay 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 465482-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Jul 25, 1997 | Aug 4, 1997 | — | 5,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 22, 2025 | Mallet Unit O-11-18149 | Slaughter | Hilcorp Energy Company | Producing | 5,030 |
Formation tops
As filed on W-2/G-1. Subsea from 3,627 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,400 | -773 |
| San AndresSAN ANDREAS D | 4,930 | -1,303 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,930 | 5,030 | Perforated |
| 4,930 | 5,030 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 401 | — | — |
| 9.625 | 417 | 13.375 | 150 S |
| 9.625 | 417 | — | 150 S |
| 5.5 | 4,930 | 7.875 | 200 S |
| 5.5 | 4,930 | — | 200 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 | Sep 26, 2025 | Jul 30, 2025 | — |
| 00 | Aug 23, 2022 | May 23, 2022 | — |
| 00 | Feb 24, 1998 | Nov 14, 1997 | — |
| 00 | Jan 12, 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 42-219-01125 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-219-01125 → 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/21901125, documented in the API reference.