WELL · 42-391-01619 · DISTRICT 2
Thomas O Connor -B- #27
Refugio County · Tom Oconnor (4950) field · Vertical
Thomas O Connor -B- #27 (API 42-391-01619) is a plugged well in Refugio County, plugged April 24, 2018, last operated by T-C Oil Company LLC.
The RRC has issued one drilling permit, issued November 29, 2004, permitted to 5,748 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 7 formation tops, including Lagarto, Miocene (undifferentiated), Oakville, Catahoula.
Its 2 leases have reported 22.8M barrels of oil and 15M mcf of gas since January 1993, last reporting in July 2026. The leases carry 595 wells, so these are lease totals, not this well alone.
Operator of record
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 |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | T - C Oil CompanyNov 29, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,748
- total depth, ft
- 1
- permits on file
- Nov 29, 2004
- last permit issued
- Oct 31, 2012
- 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
- Oct 31, 2012
- Shut in
- —
- Plugged
- Apr 24, 2018
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 2 leases this well is completed on; they carry 595 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 |
| Thomas O'Connor -B- G-2-205812 | Tom Oconnor (4950) | T-C Oil Company, LLC | 1 | 0 | 56.9K | Dec 2004 – Apr 2018 |
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.
- 1Quintana Pet. Corp.Jan 1993 → Nov 2000
- 2Hilcorp Energy CompanyDec 2000 → Apr 2026
- 3T - C Oil CompanyDec 2004 → Nov 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 554114-99 | Recompletion | T - C Oil Company | Nov 29, 2004 | Nov 29, 2004 | — | 5,748 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 31, 2012 | Thomas O Connor -B- G-2-205812 | Tom Oconnor (4950) | T-C Oil Company LLC | Plugged | — |
| Aug 6, 1991 | Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | Plugged | — |
| — | Oconnor Thomas -B- O-2-4998 | Tom Oconnor (5800) | T - C Oil Company | Plugged | — |
| — | Oconnor Thomas -B- O-2-1524 | Tom Oconnor | T-C Oil Company LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 45 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,012 | 5,018 | Perforated |
| 5,020 | 5,024 | Perforated |
| — | 5,800 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,128 | 16 | 500 S |
| 10.75 | 1,128 | — | 500 S |
| 10.75 | 1,130 | — | 528 S |
| 5 | 5,853 | 9.875 | 500 S |
| 5 | 5,853 | — | 500 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 | Aug 9, 2013 | Jan 2, 2013 | — |
| 00 | Feb 6, 2007 | Apr 18, 2006 | — |
| 00 | Apr 22, 2005 | Dec 31, 2004 | Yes |
| 00 | Feb 1, 2005 | — | — |
| 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 42-391-01619 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-01619 → 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.
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/39101619, documented in the API reference.