TEXAS · WELLS · HOCKLEY COUNTY · CENTRAL MALLET UNIT LEASE · API 42-219-35709 · DISTRICT 7B
Central Mallet Unit #350
Hockley County · Slaughter field · Injection · Vertical
Central Mallet Unit #350 (API 42-219-35709) is a well in Hockley County operated by Hilcorp Energy Company, completed February 22, 2019 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued December 21, 1990, permitted to 4,946 ft.
It was permitted by Amoco Production Company and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 4 formation tops, including Santa Rosa, Rustler, Yates, San Andres.
Its lease has reported 36.5M barrels of oil and 105M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 360 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 41.6K barrels injected in the 12 months reported through December 2025.
Operator of record
Permitted by Amoco Production Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- 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 Aug 2026 |
| Latest permit | Amoco Production CompanyDec 21, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,946
- total depth, ft
- 2
- permits on file
- Dec 21, 1990
- last permit issued
- Feb 22, 2019
- completed
- 36.5M
- cumulative oil, bbl
- 105M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 22, 2019
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 360 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Central Mallet Unit O-11-18244 | Slaughter | Hilcorp Energy Company | 360 | 36.5M | 105M | by Jan 1993 – Aug 2026 |
Oil, barrels lease total
Last 12 months 448,998 · prior 12 501,285(-10%)
Gas, mcf lease total
Last 12 months 515,734 · prior 12 398,292(+29%)
Wells named Central Mallet Unit
Hilcorp Energy Company's other wells filed under this lease name in Hockley County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Amoco Production CompanyJan 1993 → Feb 1997
- 2Altura Energy Ltd.Mar 1997 → Apr 2000
- 3Occidental Permian Ltd.May 2000 → Apr 2026
- 4Hilcorp Energy CompanyMay 2026 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 382655-98 | Drill | Amoco Production Company | Jan 7, 1991 | Dec 21, 1990 | Dec 31, 1990 | 5,200 |
| 382655-99 | Drill | Amoco Production Company | Dec 21, 1990 | Dec 21, 1990 | — | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 22, 2019 | Central Mallet Unit O-11-18244 | Slaughter | Hilcorp Energy Company | Injection | 4,946 |
Formation tops
As filed on W-2/G-1. Subsea from 3,548 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,925 | 1,623 |
| Rustler | 2,175 | 1,373 |
| Yates | 2,790 | 758 |
| San Andres | 4,912 | -1,364 |
| San AndresSAN ANDRES IV | 4,912 | -1,364 |
| San AndresSAN ANDRES V | 4,956 | -1,408 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,859 | 4,946 | Open hole |
| 4,860 | 5,068 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 455 | 17.5 | 550 S |
| 8.625 | 2,227 | 12.25 | 1,275 S |
| 5.5 | 4,850 | 7.875 | 950 S |
| 5.5 | 4,859 | 7.875 | 950 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 26, 2019 | May 16, 2019 | — |
| 00 | Jul 10, 1991 | Jun 24, 1991 | Yes |
| 00 | Jul 1, 1991 | — | — |
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 42-219-35709 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-219-35709 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 41.6K
- bbl, last 12 reported months
- 1.24M
- bbl, all reported
- Dec 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000074471 | H-1 Injection | Active | 1,800 | 2,400 | 4,860–5,100 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 41,552 · prior 12 25,556(+63%)
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/21935709, documented in the API reference.