WELL · 42-317-33309 · DISTRICT 8

Slaughter -B- #4

Y

Martin County · Sulphur Draw (Dean 8790) field · Shut IN  · Vertical

Slaughter -B- #4 (API 42-317-33309) is a well in Martin County operated by Ovintiv USA Inc., completed January 3, 1986 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued December 9, 1985, permitted to 9,400 ft.

It was permitted by Marcum Drilling CO. and has since transferred to Ovintiv USA Inc. on the wellbore schedule.

Completion filings report 3 formation tops, including Spraberry, Jo Mills, Dean.

Its lease has reported 82.3K barrels of oil and 125K mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Ovintiv USA Inc.

Permitted by Marcum Drilling Co.; the EWA schedule now lists a different operator.

Denver, CO · P-5 Y, filed Oct 4, 2025 · 1,389 permits on file · (877) 386-2200

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOvintiv USA Inc.
Production reportsOvintiv USA Inc.through Aug 2023
Latest permitMarcum Drilling Co.Dec 9, 1985

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

9,400
total depth, ft
1
permits on file
Dec 9, 1985
last permit issued
Jan 3, 1986
completed
82.3K
cumulative oil, bbl
125K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 3, 1986
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Slaughter -B- O-10-21844Sulphur Draw (Dean 8790)Ovintiv USA Inc.282.3K125KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 0 · prior 12 0

0204060202420252026

Chain of custody

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

  1. 1Hallwood Energy CorporationJan 1993 → Nov 1994
  2. 2Hallwood Petroleum, Inc.Dec 1994 → Dec 2001
  3. 3Hec Petroleum, Inc.Jan 2002 → Mar 2006
  4. 4Chevron Midcontinent, L.P.Apr 2006 → Jan 2009
  5. 5Endeavor Energy Resources L.P.Feb 2009 → Dec 2018
  6. 6Petrolegacy Energy II, LLCJan 2019 → Apr 2023
  7. 7Ovintiv USA Inc.Aug 2023 → Aug 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
292250-99DrillMarcum Drilling Co.Oct 29, 1985Dec 9, 1985—9,400

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-21844————

Formation tops

As filed on W-2/G-1. Subsea from 2,753 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryUPPER SPRABERRY7,525-4,772
SpraberryLOWER SPRABERRY8,050-5,297
JO Mills8,390-5,637
Dean8,890-6,137

Perforations

Perforated and open-hole intervals.

FromToType
8,8889,100Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37536817.5360 S
8.6253,95012.25412 S
4.59,4007.875840 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
00Jan 24, 1986Jan 10, 1986Yes
00Jan 18, 1986——

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) and the University Lands library. 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/31733309, documented in the API reference.