TEXAS · WELLS · HOCKLEY COUNTY · CENTRAL MALLET UNIT LEASE · API 42-219-31536 · DISTRICT 7B
Central Mallet Unit #310
Hockley County · Slaughter field · Injection · Horizontal · Sidetrack
Central Mallet Unit #310 (API 42-219-31536) is a horizontal well in Hockley County operated by Hilcorp Energy Company, completed June 7, 1984 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued February 27, 1991, permitted to 5,099 ft.
It was permitted by Amoco Production Company and has since transferred to Hilcorp Energy Company on the wellbore schedule.
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 41.8K 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 CompanyFeb 27, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,099
- total depth, ft
- 1
- permits on file
- Feb 27, 1991
- last permit issued
- Jun 7, 1984
- 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
- Jun 7, 1984
- 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 |
|---|---|---|---|---|---|---|
| 384902-99 | Recompletion · sidetrack | Amoco Production Company | Feb 20, 1991 | Feb 27, 1991 | — | 5,150 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 7, 1984 | Central Mallet Unit O-11-18244 | Slaughter | Hilcorp Energy Company | Injection | 5,099 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,949 | 5,099 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 449 | 12.25 | 275 S |
| 8.625 | 449 | — | 275 S |
| 5.5 | 4,949 | 7.875 | 1,225 S |
| 5.5 | 4,949 | — | 1,225 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 | Aug 10, 1990 | Jul 19, 1990 | — |
| 00 | Oct 31, 1984 | Oct 10, 1984 | — |
| 00 | Jan 12, 1984 | Apr 20, 1975 | — |
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 42-219-31536 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-219-31536 → 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
- 41.8K
- bbl, last 12 reported months
- 2.27M
- bbl, all reported
- Dec 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000071493 | H-1 Injection | Active | 1,800 | 2,400 | 4,850–5,150 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 41,774 · prior 12 0
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/21931536, documented in the API reference.