WELL · 42-391-01714 · DISTRICT 2

Nordan L. A.-Oconnor Thomas Est. #28

Plugged

Refugio County · Tom Oconnor (5900 Sand) field · Vertical

Nordan L. A.-Oconnor Thomas Est. #28 (API 42-391-01714) is a plugged well in Refugio County, plugged March 28, 2016, last operated by T-C Oil Company LLC.

The RRC has issued one drilling permit (amended once), issued July 31, 2006, permitted to 5,775 ft.

It was permitted by T - C Oil Company and has since transferred to T-C Oil Company LLC on the wellbore schedule.

Completion filings report 8 formation tops, including Lagarto, Miocene (undifferentiated), Oakville, Catahoula.

Its 3 leases have reported 23.7M barrels of oil and 15.5M mcf of gas since January 1993, last reporting in July 2026. The leases carry 631 wells, so these are lease totals, not this well alone.

Operator of record

T-C Oil Company LLC

Permitted by T - C Oil Company; the EWA schedule now lists a different operator.

Based in: Refugio, TX
P-5 status: Active (A)
P-5 last filed: Dec 3, 2025
Permits on file: 287
Phone: (361) 526-4693

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	T-C Oil Company LLC
Production reports	Hilcorp Energy Companythrough Apr 2026
Latest permit	T - C Oil CompanyJul 31, 2006

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

5,775: total depth, ft
2: permits on file
Jul 31, 2006: last permit issued
Apr 27, 1979: completed
23.7M: cumulative oil, bbl
15.5M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Apr 27, 1979
Shut in: —
Plugged: Mar 28, 2016

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 3 leases this well is completed on; they carry 631 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Tom Oconnor (5800 SD) Fld. Unit O-2-5280	Tom Oconnor (5800)	Hilcorp Energy Company	594	22.8M	14.9M	Jan 1993 – Jul 2026
Mellon Oil Unit O-2-2192	Tom Oconnor (4400)	T-C Oil Company, LLC	28	852K	451K	Jan 1993 – Jul 2017
Nordan,l. A.-Oconnor,thomas,est. O-2-2869	Tom Oconnor (5900 Sand)	T-C Oil Company, LLC	9	39.6K	114K	Jan 1993 – Sep 2016

Oil, barrels lease total

Last 12 months 673,200 · prior 12 524,408(+28%)

Gas, mcf lease total

Last 12 months 117,526 · prior 12 83,712(+40%)

Chain of custody

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

1Mellon Oil UnitJan 1993 → Jun 2004
2Nordan & CompanyJan 1993 → Jun 1998
3Quintana Pet. Corp.Jan 1993 → Nov 2000
4Hilcorp Energy CompanyDec 2000 → Apr 2026
5T - C Oil CompanyJul 2004 → Dec 2011
6T-C Oil Company, LLCJan 2012 → Mar 2015

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
623481-98	Recompletion	T - C Oil Company	Aug 21, 2006	Jul 31, 2006	Aug 18, 2006	5,775
623481-99	Recompletion	T - C Oil Company	Jul 31, 2006	Jul 31, 2006	—	5,775

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-2-2192	—	—	—	—
—	— O-2-2869	—	—	—	—
—	— O-2-5280	—	—	—	—
—	— O-2-5280	—	—	—	—

Formation tops

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

Formation	MD ft	Subsea
Lagarto	1	58
LagartoLARGARTO	1,500	-1,441
Miocene (undifferentiated)MIOCENE	2,272	-2,213
Oakville	2,750	-2,691
CatahoulaCATAHOULA(MIOCENE)	3,300	-3,241
Catahoula	3,625	-3,566
AnahuacANAHUAC (MIOCENE)	4,100	-4,041
FrioFRIO-GRETA (OLIGOCENE)	4,365	-4,306
Greta	4,370	-4,311
Frio	4,800	-4,741
FrioMIDDLE FRIO (SINTON)	5,000	-4,941
FrioLOWER FRIO (OLIGOCENE)	5,880	-5,821
NO Change	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
4,380	4,386	Perforated
5,777	5,792	Perforated
5,790	5,896	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	1,136	—	606 S
10.75	1,137	—	528 S
1.5	5,733	—	—
1.5	5,872	—	—
5	5,905	—	528 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 →

Filed	W-2 / G-1 date	Logs referenced
Apr 4, 2007	Sep 5, 2006	Yes
Dec 8, 2006	—	—
Jul 11, 2006	Jan 17, 2006	—
Feb 1, 2006	Mar 11, 1993	—
Jun 2, 1993	Mar 11, 1993	—
Jan 12, 1984	May 29, 1979	—
Jan 12, 1984	—	—

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 42-391-01714 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-391-01714 → 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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

466K: bbl, last 12 reported months
8.54M: bbl, all reported
Sep 2005: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000073252	H-1 Injection	Plugged Apr 15, 2016	5,000	2,250	5,777–5,792

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

Last 12 months 466,294 · prior 12 318,497(+46%)

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/39101714, documented in the API reference.