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TEXAS · WELLS · HOCKLEY COUNTY · SUNDOWN UNIT LEASE · API 42-219-36071 · DISTRICT 7B

Sundown Unit #63

On schedule

Hockley County · Slaughter field · Producing  · Vertical

Sundown Unit #63 (API 42-219-36071) is a well in Hockley County operated by Hilcorp Energy Company, completed December 20, 2021 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 1994 and 2015, permitted to 5,104 ft.

It was permitted by Occidental Permian Ltd. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 14 formation tops, including Rustler, Yates, San Andres, (Sa) Zone V.

Its lease has reported 6.42M barrels of oil and 2.47M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 103 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Occidental Permian Ltd.; 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
Create operator alert

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Aug 2026
Latest permitOccidental Permian Ltd.Jul 9, 2015

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

5,104
total depth, ft
2
permits on file
Jul 9, 2015
last permit issued
Dec 20, 2021
completed
6.42M
cumulative oil, bbl
2.47M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026

On this page16 formation topsLease production2 completions

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 20, 2021
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.

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Sundown Unit O-11-60282SlaughterHilcorp Energy Company1036.42M2.47Mby Jan 1993 – Aug 2026

Oil, barrels lease total

Last 12 months 110,311 · prior 12 115,121(-4%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 62,419 · prior 12 75,356(-17%)

05K10K202420252026

Wells named Sundown 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 wells

Chain of custody

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

  1. 1Amoco Production CompanyJan 1993 → Feb 1997
  2. 2Altura Energy Ltd.Mar 1997 → Apr 2000
  3. 3Occidental Permian Ltd.May 2000 → Apr 2026
  4. 4Hilcorp Energy CompanyMay 2026 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
807945-99RecompletionOccidental Permian Ltd.Jun 30, 2015Jul 9, 2015Oct 21, 20155,400
420998-99DrillAmoco Production CompanyFeb 9, 1994Feb 11, 1994Mar 25, 19945,200

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 20, 2021Sundown Unit O-11-60282SlaughterHilcorp Energy CompanyProducing5,104
Dec 20, 2021Sundown Unit O-11-60282SlaughterHilcorp Energy CompanyProducing5,104

Formation tops

As filed on W-2/G-1. Subsea from 3,527 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler2,1421,385
Yates2,687840
YatesYATES - OVERPRESSURE, INERT GAS2,687840
San Andres4,652-1,125
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,652-1,125
(SA) Zone V4,847-1,320
(SA) Zone VI4,905-1,378
(SA) Zone VII4,957-1,430
Abo——
Canyon——
Cisco——
Clear ForkCLEARFORK——
Santa RosaRED BED-SANTA ROSA——
Strawn——
Wichita-AlbanyWICHITA ALBANY——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
4,8224,987Open hole
4,8225,104Open hole
4,9905,066Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62548712.25300 S
5.54,8227.875800 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jul 16, 2024May 14, 2024—
00Jul 28, 2020Jul 24, 2020—
00Jun 3, 2016May 31, 2016Yes
00Sep 9, 1994Jul 28, 1994Yes

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

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/21936071, documented in the API reference.