WELL · 42-391-03868 · DISTRICT 2
Oconnor Thomas -A- #C111
Refugio County · Tom Oconnor (5900 Sand) field · Vertical
Oconnor Thomas -A- #C111 (API 42-391-03868) is a plugged well in Refugio County, plugged May 18, 2021, last operated by T-C Oil Company LLC.
The RRC has issued one drilling permit, issued August 14, 2017, permitted to 5,950 ft.
It was permitted by Hilcorp Energy Company and has since transferred to T-C Oil Company LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Catahoula, Frio, Jackson.
Its 3 leases have reported 22.8M barrels of oil and 15M mcf of gas since January 1993, last reporting in July 2026. The leases carry 598 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Hilcorp Energy Company; the EWA schedule now lists a different operator.
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 | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Hilcorp Energy CompanyAug 14, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,950
- total depth, ft
- 1
- permits on file
- Aug 14, 2017
- last permit issued
- —
- completed
- 22.8M
- cumulative oil, bbl
- 15M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- May 18, 2021
Surface location
28.323323, -97.178018
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 3 leases this well is completed on; they carry 598 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Oconnor, Thomas, -A- O-2-2864 | Tom Oconnor (5900 Sand) | T-C Oil Company, LLC | 3 | 12.5K | 47.9K | Jan 1993 – Jul 2026 |
| Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | 594 | 22.8M | 14.9M | Jan 1993 – Jul 2026 |
| Oconnor, Thomas -A- O-2-3837 | Tom Oconnor (5450 Sand) | T-C Oil Company, LLC | 1 | 12.3K | 42.3K | Jan 1993 – Mar 2020 |
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.
- 1Copano CompanyJan 1993 → Jun 1998
- 2Quintana Pet. Corp.Jan 1993 → Nov 2000
- 3Hilcorp Energy CompanyDec 2000 → Apr 2026
- 4T - C Oil CompanyAug 2008 → Aug 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 829587-99 | Recompletion | Hilcorp Energy Company | Aug 4, 2017 | Aug 14, 2017 | — | 5,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-2864 | — | — | — | — |
| — | — O-2-3837 | — | — | — | — |
| — | — O-2-5280 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 49 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,544 | 5,547 | Perforated |
| 5,902 | 5,916 | Perforated |
| — | 5,547 | Perforated |
| — | 5,916 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,057 | 15 | 420 S |
| 7 | 5,950 | 9.875 | 900 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 | Mar 30, 2020 | Aug 8, 2019 | Yes |
| 00 | 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 42-391-03868 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-03868 → 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.
Tom O'Connor (5800'SD)FIELD Unit42-391-30315
1.0 KM · Quintana Pet. Corp. · Section with this well →
| Lagarto | 1,500 | -1,447 |
| Oakville | 2,750 | -2,697 |
| Catahoula | 3,300 | -3,247 |
| Catahoula | 3,300 | -3,247 |
| Anahuac | 4,100 | -4,047 |
| Frio | 4,362 | -4,309 |
| Frio | 4,365 | -4,312 |
| Frio | 5,000 | -4,947 |
10 TOPS · FIRST 8
Tom O'Connor (5800 SD) Fld. Unit42-391-32794
1.0 KM · Hilcorp Energy Company · Section with this well →
| Lagarto | 2,750 | -2,699 |
| Oakville | 3,300 | -3,249 |
| Catahoula | 3,614 | -3,563 |
| Catahoula | 4,100 | -4,049 |
| Ananhuac | 4,365 | -4,314 |
| Anahuac | 4,365 | -4,314 |
| Frio | 4,389 | -4,338 |
| Frio | 4,785 | -4,734 |
12 TOPS · FIRST 8
Lambert, M.F.42-391-01398
1.1 KM · Hilcorp Energy Company · Section with this well →
| Frio | 1 | 58 |
| Surface Sand Clay | 1,500 | -1,441 |
| Lagarto | 2,750 | -2,691 |
| Oakville | 3,300 | -3,241 |
| Catahoula | 4,100 | -4,041 |
| Anahuac | 4,365 | -4,306 |
| Frio | 4,785 | -4,726 |
| Frio | 4,785 | -4,726 |
9 TOPS · FIRST 8
Tom O'Connor (5800 Sd)field Unit42-391-01375
1.1 KM · Quintana Pet. Corp. · Section with this well →
| Lagarto | 1,500 | -1,450 |
| Oakville | 2,750 | -2,700 |
| Catahoula | 3,300 | -3,250 |
| Catahoula | 3,300 | -3,250 |
| Anahuac | 4,100 | -4,050 |
| Frio | 4,365 | -4,315 |
| Frio | 4,365 | -4,315 |
| Frio | 5,000 | -4,950 |
9 TOPS · FIRST 8
Tom O'Connor (5800 SD) Fld. Unit42-391-01433
1.2 KM · Hilcorp Energy Company · Section with this well →
| Lagarto | 2,750 | -2,700 |
| Catahoula | 3,627 | -3,577 |
| Oakville | 4,100 | -4,050 |
| Anahuac | 4,365 | -4,315 |
| Frio | 4,400 | -4,350 |
| Jackson | — | |
| NO Change | — |
Tom O'Connor (5800'SD)FIELD Unit42-391-01364
1.3 KM · Quintana Pet. Corp. · Section with this well →
| Lagarto | 1,500 | -1,437 |
| Oakville | 2,750 | -2,687 |
| Catahoula | 3,300 | -3,237 |
| Catahoula | 3,300 | -3,237 |
| Catahoula | 3,300 | -3,237 |
| Anahuac | 4,100 | -4,037 |
| Anahuac | 4,100 | -4,037 |
| Frio | 4,365 | -4,302 |
16 TOPS · FIRST 8
Tom O'Connor (5800'SD)FIELD Unit42-391-31923
1.4 KM · Quintana Pet. Corp. · Section with this well →
| Lagarto | 1,500 | -1,452 |
| Oakville | 2,750 | -2,702 |
| Catahoula | 3,300 | -3,252 |
| Catahoula | 3,637 | -3,589 |
| Anahuac | 4,100 | -4,052 |
| Frio | 4,362 | -4,314 |
| Greta | 4,362 | -4,314 |
| Frio | 4,365 | -4,317 |
11 TOPS · FIRST 8
M. F. Lambert42-391-01388
1.5 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,627 | -3,576 |
| Frio | 4,375 | -4,324 |
| Tom O'Connor (5200, East) | 5,159 | -5,108 |
| Tom O'Connor (5900 Sand) | 5,858 | -5,807 |
| 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/39103868, documented in the API reference.