WELL · 42-219-36132 · DISTRICT 8

Sundown Slaughter Unit #1258H

N

Hockley County · Slaughter field  · Horizontal

Sundown Slaughter Unit #1258H (API 42-219-36132) is a horizontal well in Hockley County operated by Bce-Mach Iii LLC, completed December 10, 1994.

The RRC has issued one drilling permit, issued October 13, 1994, permitted to 5,030 ft.

It was permitted by Texaco E & P Inc. and has since transferred to Bce-Mach Iii LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Red Beds, Rustler, Slaughter San Andres, San Andres.

Its lease has reported 51.1M barrels of oil and 30.8M mcf of gas since December 1993, last reporting in July 2026. The lease carries 702 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 114K barrels injected in the 12 months reported through December 2025.

Operator of record

Bce-Mach III LLC

Permitted by Texaco E & P Inc.; the EWA schedule now lists a different operator.

Oklahoma City, OK · P-5 Y, filed Mar 4, 2026 · 10 permits on file · (833) 831-2164

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleBce-Mach III LLC
Production reportsBce-Mach III LLCthrough Apr 2026
Latest permitTexaco E & P Inc.Oct 13, 1994

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
Oct 13, 1994
last permit issued
Dec 10, 1994
completed
51.1M
cumulative oil, bbl
30.8M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Dec 10, 1994
Shut in
—
Plugged
—

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Sundown Slaughter Unit O-11-67166SlaughterBce-Mach III LLC70251.1M30.8MDec 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 718,605 · prior 12 779,783(-8%)

050K100K202420252026

Gas, mcf lease total

Last 12 months 573,717 · prior 12 479,725(+20%)

050K100K202420252026

Chain of custody

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

  1. 1Texaco E & P Inc.Dec 1993 → May 2002
  2. 2Chevron U. S. A. Inc.Jun 2002 → Sep 2017
  3. 3Sabinal Energy Operating, LLCOct 2017 → Aug 2025
  4. 4Bce-Mach III LLCSep 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
429070-99DrillTexaco E & P Inc.Oct 13, 1994Oct 13, 1994Oct 22, 19945,030

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-11-67166————
—— O-11-67166————

Formation tops

As filed on W-2/G-1. Subsea from 3,553 ft elevation.Download CSV →

FormationMD ftSubsea
Red Beds4503,103
Rustler2,2001,353
RustlerRUSTLER ANHYDRITE2,2001,353
Slaughter San Andres4,950-1,397
San Andres4,959-1,406

Perforations

Perforated and open-hole intervals.

FromToType
4,9505,045Perforated
4,9524,958Perforated
4,9525,787Perforated
4,9525,878Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62546512.25300 S
5.54,9527.8751,575 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
00Oct 21, 2026Jul 28, 2026—
00Jul 13, 2005Mar 4, 2005—
00Apr 5, 2005Jan 23, 1995—
00May 22, 1995Jan 23, 1995—
00May 4, 1995——

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

114K
bbl, last 12 reported months
3.48M
bbl, all reported
Dec 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000081921H-1 InjectionActive2,2002,2004,700–5,200

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 113,770 · prior 12 97,402(+17%)

05K10K15K20242025

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/21936132, documented in the API reference.