WELL · 42-391-33202 · DISTRICT 2

O Connor #81H

Refugio County · McFaddin (4400) field · Producing · Horizontal

O Connor #81H (API 42-391-33202) is a horizontal well in Refugio County operated by T-C Oil Company LLC, completed July 24, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued April 26, 2019, permitted to 4,500 ft.

Completion filings report 3 formation tops, including Jackson, Frio, Catahoula.

Its lease has reported 354K barrels of oil and 164K mcf of gas since July 2019, last reporting in July 2026. The lease carries 15 wells, so these are lease totals, not this well alone.

Operator of record

T-C Oil Company LLC

Refugio, TX · P-5 Y, filed Oct 4, 2025 · 287 permits on file · (361) 646-9296

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	T-C Oil Company LLC
Production reports	T-C Oil Company, LLCthrough Apr 2026
Latest permit	T-C Oil Company, LLCApr 26, 2019

4,500: total depth, ft
2: permits on file
Apr 26, 2019: last permit issued
Jul 24, 2019: completed
354K: cumulative oil, bbl
164K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Jul 24, 2019
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active

Surface location

28.487774, -97.019401

OpenStreetMap → · Google Maps →

Permit surface location from the RRC GIS record, in Refugio County.

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

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
O'Connor O-2-11800	McFaddin (4400)	T-C Oil Company, LLC	15	354K	164K	Jul 2019 – Jul 2026

Oil, barrels lease total

Last 12 months 63,469 · prior 12 66,891(-5%)

Gas, mcf lease total

Last 12 months 15,486 · prior 12 18,199(-15%)

Chain of custody

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

1T-C Oil Company, LLCJul 2019 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
852403-98	Drill	T-C Oil Company, LLC	Jul 26, 2019	Apr 26, 2019	Jun 28, 2019	4,500
852403-99	Drill	T-C Oil Company, LLC	Apr 23, 2019	Apr 26, 2019	Jun 28, 2019	4,500

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-2-11800	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 59 ft elevation.Download CSV →

Formation	MD ft	Subsea
JacksonJACKSON-YEGUA - DISPOSAL	2,150	-2,091
FrioFRIO - DISPOSAL	3,744	-3,685
CatahoulaCATAHOULA - DISPOSAL	4,407	-4,348

Perforations

Perforated and open-hole intervals.

From	To	Type
5,153	7,062	Open hole

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	1,386	14.75	1,275 S
7	5,153	9.875	940 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Nov 21, 2019	Aug 9, 2019	Yes

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.

Wellbore filings for 42-391-33202 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-391-33202 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

O'Connor42-391-33219

0.3 KM · T-C Oil Company, LLC · Section with this well →

Miocene (undifferentiated)	2,230	-2,171
Jackson	2,230	-2,171
Catahoula	3,700	-3,641
Frio	4,400	-4,341
Greta	5,200	-5,141

O'Connor42-391-33224

0.4 KM · T-C Oil Company, LLC · Section with this well →

Miocene (undifferentiated)	2,950	-2,891
Jackson	2,950	-2,891
Frio	3,600	-3,541
Catahoula	3,600	-3,541
Greta	4,360	-4,301
Frio	5,005	-4,946
Lagarto	—

Fagan42-391-33171

0.5 KM · Frostwood Energy, LLC · Section with this well →

Catahoula	3,732	-3,672
Anahuac	4,066	-4,006
Frio	4,476	-4,416
Jackson	—

Fagan42-391-32994

0.6 KM · Great Bay Operations, LLC · Section with this well →

Catahoula	3,709	-3,649
Catahoula	3,720	-3,660
Anahuac	4,200	-4,140
Frio	4,404	-4,344
Greta	4,460	-4,400
McFaddin (4400)	4,466	-4,406
McFaddin 4500	4,466	-4,406
McFaddin 5050	5,025	-4,965

13 TOPS · FIRST 8

Fagan42-391-32901

0.6 KM · Great Bay Operations, LLC · Section with this well →

Catahoula	3,720	-3,659
Anahuac	4,400	-4,339
Greta	4,460	-4,399
McFaddin N 4450	4,460	-4,399
McFaddin N 4450'	4,466	-4,405

Fagan42-391-32811

0.9 KM · McDonald & Johnson Resources,llc · Section with this well →

Catahoula	3,710	-3,644
Anahuac	4,100	-4,034
Greta	4,470	-4,404
McFaddin (4400)	4,470	-4,404

Marberry B42-391-33040

1.1 KM · Great Bay Operations, LLC · Section with this well →

Jackson	1,990	-1,928
Catahoula	3,710	-3,648
Frio	4,404	-4,342
4400 Sand	4,466	-4,404
5050 Sand	5,042	-4,980
5400 Sand	5,430	-5,368

Marberry42-391-33122

1.2 KM · Great Bay Operations, LLC · Section with this well →

Catahoula	3,962	-3,902
Frio	4,477	-4,417
Jackson	—

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/39133202, documented in the API reference.