TEXAS · WELLS · HOCKLEY COUNTY · MALLET LEASE · API 42-219-33493 · DISTRICT 7B

Mallet #121

Plugged

Hockley County · Slaughter field  · Vertical

Mallet #121 (API 42-219-33493) is a plugged well in Hockley County, plugged May 30, 2019, last operated by Hilcorp Energy Company.

The RRC has issued one drilling permit, issued April 14, 1982, permitted to 5,100 ft.

It was permitted by Cities Service Company and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Its lease has reported 8.6M barrels of oil and 3.74M mcf of gas since January 1993, last reporting in July 2026. The lease carries 196 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Cities Service 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 scheduleOXY USA WTP EOR LLC
Production reportsOXY USA WTP LPthrough Apr 2026
Latest permitCities Service CompanyApr 14, 1982

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

5,100
total depth, ft
1
permits on file
Apr 14, 1982
last permit issued
Dec 15, 2015
completed
8.6M
cumulative oil, bbl
3.74M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Dec 15, 2015
Shut in
—
Plugged
May 30, 2019

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 196 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mallet O-11-5913SlaughterOXY USA WTP EOR, LLC1968.6M3.74MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 65,298 · prior 12 76,053(-14%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 37,055 · prior 12 50,176(-26%)

05K10K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1OXY USA Inc.Jan 1993 → Dec 2000
  2. 2OXY USA WTP LPJan 2001 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
156777-99DrillCities Service CompanyApr 14, 1982Apr 14, 1982Apr 17, 19825,100

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 15, 2015Mallet O-11-5913SlaughterHilcorp Energy CompanyPlugged—

Perforations

Perforated and open-hole intervals.

FromToType
4,9085,019Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,17712.25890 S
2.3754,910——
5.55,1007.8751,300 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. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Mar 23, 2016Mar 22, 2016—
00Jan 12, 1984Jun 11, 1982—

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.

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/21933493, documented in the API reference.