WELL · 42-433-30549 · DISTRICT 7

McMillin I.S. Ac. 8 #4

Plugged

Stonewall County · Mengel (Tannehill) field  · Vertical

Mcmillin I.S. AC. 8 #4 (API 42-433-30549) is a plugged well in Stonewall County, plugged February 5, 1990, last operated by Png Operating Company.

The RRC has issued 2 drilling permits between 1978 and 1989, permitted to 4,604 ft.

Completion filings report 3 formation tops, including Tannehill, Guest Canyon Sand, Guest Canyon Sd.

Its lease has reported 71.8K barrels of oil and 58.8K mcf of gas since January 1993, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.

Operator of record

PNG Operating Company

Oklahoma City, OK · P-5 Y, filed Mar 4, 2026 · 10 permits on file · (405) 620-3326

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePNG Operating Company
Production reportsL.C.S. Production Companythrough Apr 2026
Latest permitPNG Operating CompanyNov 14, 1989

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

4,604
total depth, ft
2
permits on file
Nov 14, 1989
last permit issued
Oct 24, 1984
completed
71.8K
cumulative oil, bbl
58.8K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Oct 24, 1984
Shut in
—
Plugged
Feb 5, 1990

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
McMillin I.S. Ac. 8 O-8-13207Guest (Canyon Sand)L.C.S. Production Company771.8K58.8KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 2,519 · prior 12 1,124(+124%)

0200400202420252026

Chain of custody

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

  1. 1Petrotex, Inc.Jan 1993 → Sep 1999
  2. 2Crown Petroleum Corp.Nov 1999 → Apr 2015
  3. 3L.C.S. Production CompanyMay 2015 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
366317-99RecompletionPNG Operating CompanyNov 10, 1989Nov 14, 1989—4,604
39389-99RecompletionTexas Pacific Oil Company, Inc.Dec 21, 1978Dec 21, 1978—3,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-8-13207————

Formation tops

As filed on W-2/G-1. Subsea from 1,783 ft elevation.Download CSV →

FormationMD ftSubsea
TannehillTANNEHILL SAND2,968-1,185
TannehillTANNEHILL SD2,968-1,185
Guest Canyon Sand4,445-2,662
Guest Canyon SD4,445-2,662

Perforations

Perforated and open-hole intervals.

FromToType
2,9782,983Perforated
4,4454,524Perforated
4,445—Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62521812.25200 S
2.3754,352——
5.54,6037.875450 S
5.54,603—750 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
00Dec 20, 1989Nov 20, 1987—
00Jan 17, 1985Nov 5, 1984—
00Dec 7, 1984Jan 26, 1979—
00Jan 12, 1984Jan 26, 1979—
00Jan 12, 1984Jul 13, 1977—

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

2.24K
bbl, last 12 reported months
2.24K
bbl, all reported
Apr 1985
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000053397H-1 InjectionPlugged Feb 23, 1990002,978–0

MONTHLY INJECTED, BBL · H-10 · LAST 4 REPORTED MONTHS

Last 12 months 2,239

05001K1985

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/43330549, documented in the API reference.