WELL · 42-391-00348 · DISTRICT 2
Dennis O Connor et al -L- #L 31
Refugio County · Lake Pasture (H-434) field · Vertical
Dennis O Connor ET AL -L- #L 31 (API 42-391-00348) is a well in Refugio County operated by T-C Oil Company LLC, completed January 14, 2002.
The RRC has issued 2 drilling permits between 2001 and 2011, permitted to 5,050 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 5 formation tops, including Eocene, Miocene (undifferentiated), Catahoula, Greta.
Its 3 leases have reported 3.49M barrels of oil and 50M mcf of gas since January 1993, last reporting in July 2026. The leases carry 83 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.
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 CompanyMar 23, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,050
- total depth, ft
- 2
- permits on file
- Mar 23, 2011
- last permit issued
- Jan 14, 2002
- completed
- 3.49M
- cumulative oil, bbl
- 50M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 14, 2002
- Shut in
- —
- Plugged
- —
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 83 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Oconnor, Dennis, Etal -L- O-2-2845 | Lake Pasture (H-440 Sand) | T-C Oil Company, LLC | 81 | 3.49M | 48.5M | Jan 1993 – Jul 2026 |
| Dennis O'Connor et al -L- G-2-188890 | Lake Pasture (H-434) | T - C Oil Company | 1 | 0 | 1.54M | Jan 2002 – Mar 2011 |
| Oconnor, Dennis, et al -L- O-2-3008 | Lake Pasture (FT-560) | T - C Oil Company | 1 | 2.19K | 16.9K | Jan 1993 – Jun 2002 |
Oil, barrels lease total
Last 12 months 23,596 · prior 12 25,451(-7%)
Gas, mcf lease total
Last 12 months 19,406 · prior 12 24,005(-19%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1T - C Oil CompanyJan 1993 → Dec 2011
- 2T-C Oil Company, LLCJan 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 712360-99 | Recompletion | T - C Oil Company | Mar 18, 2011 | Mar 23, 2011 | Mar 2, 2011 | 5,050 |
| 515480-99 | Recompletion | T - C Oil Company | Nov 20, 2001 | Nov 20, 2001 | Dec 28, 2001 | 4,444 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-188890 | — | — | — | — |
| — | — O-2-2845 | — | — | — | — |
| — | — O-2-3008 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 52 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Eocene | 2,079 | -2,027 |
| Miocene (undifferentiated)MIOCENE | 2,105 | -2,053 |
| Miocene (undifferentiated)MIOCENE | 3,020 | -2,968 |
| Catahoula | 3,715 | -3,663 |
| Greta | 4,400 | -4,348 |
| Lagarto | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,409 | 4,412 | Perforated |
| 4,417 | 4,422 | Perforated |
| 4,430 | 4,434 | Perforated |
| 4,456 | 4,464 | Perforated |
| 4,484 | 4,490 | Perforated |
| — | 5,311 | Perforated |
| — | 5,710 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,538 | 15 | 650 S |
| 5.5 | 5,862 | 8.75 | 870 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 4, 2026 | Feb 3, 2026 | — |
| 00 | Nov 21, 2023 | Nov 2, 2023 | — |
| 00 | Jan 23, 2012 | Mar 31, 2011 | — |
| 00 | Jul 12, 2002 | Jan 30, 2002 | Yes |
| 00 | Jun 10, 2002 | — | — |
| 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 42-391-00348 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00348 → 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/39100348, documented in the API reference.