WELL · 42-391-30306 · DISTRICT 2
Oconnor Dennis Etal -L- #L 40
Refugio County · Lake Pasture (H-440 Sand) field · Vertical
Oconnor Dennis Etal -L- #L 40 (API 42-391-30306) is a plugged well in Refugio County, plugged April 25, 2022, last operated by T-C Oil Company LLC.
The RRC has issued 5 drilling permits between 1991 and 2011, permitted to 8,100 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 Lagarto, Miocene (undifferentiated), Catahoula, Frio.
Its 4 leases have reported 3.49M barrels of oil and 48.5M mcf of gas since January 1993, last reporting in July 2026. The leases carry 84 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 CompanyAug 29, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,100
- total depth, ft
- 5
- permits on file
- Aug 29, 2011
- last permit issued
- Oct 19, 2011
- completed
- 3.49M
- cumulative oil, bbl
- 48.5M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 19, 2011
- Shut in
- —
- Plugged
- Apr 25, 2022
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 4 leases this well is completed on; they carry 84 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 |
| O'Connor, Dennis et al -L- G-2-225008 | Lake Pasture (H-434) | T - C Oil Company | 1 | 0 | 73.7K | Jan 2007 – Oct 2011 |
| O'Connor, Dennis et al "L" G-2-170747 | Lake Pasture (E-279) | T - C Oil Company | 1 | 0 | 6.21K | Aug 1998 – Mar 2006 |
| O'Connor, Dennis et al "L" O-2-7768 | Lake Pasture (FT-566) | T - C Oil Company | 1 | 1.59K | 18K | Jan 1993 – Jan 1999 |
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 |
|---|---|---|---|---|---|---|
| 723024-99 | Recompletion | T - C Oil Company | Aug 24, 2011 | Aug 29, 2011 | Sep 28, 2011 | 4,500 |
| 632626-99 | Recompletion | T - C Oil Company | Jan 29, 2007 | Jan 31, 2007 | Jan 25, 2007 | 4,525 |
| 613909-99 | Recompletion | T - C Oil Company | Feb 9, 2006 | Feb 13, 2006 | Feb 28, 2006 | 4,525 |
| 478958-99 | Recompletion | T - C Oil Company | Aug 24, 1998 | Aug 26, 1998 | Aug 14, 1998 | 2,850 |
| 395112-99 | Recompletion | T - C Oil Company | Dec 16, 1991 | Dec 23, 1991 | Dec 26, 1991 | 8,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-170747 | — | — | — | — |
| — | — G-2-225008 | — | — | — | — |
| — | — O-2-2845 | — | — | — | — |
| — | — O-2-2845 | — | — | — | — |
| — | — O-2-2845 | — | — | — | — |
| — | — O-2-7768 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 51 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lagarto | 2,250 | -2,199 |
| Miocene (undifferentiated)MIOCENE | 2,250 | -2,199 |
| Catahoula | 3,700 | -3,649 |
| Miocene (undifferentiated)MIOCENE | 3,700 | -3,649 |
| Catahoula | 4,412 | -4,361 |
| Frio | 4,476 | -4,425 |
| Greta | 4,928 | -4,877 |
| Lagarto | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,831 | 2,836 | Perforated |
| 4,414 | 4,418 | Perforated |
| 4,420 | 4,426 | Perforated |
| 4,429 | 4,436 | Perforated |
| 4,481 | 4,487 | Perforated |
| 4,519 | 4,523 | Perforated |
| 5,789 | 5,790 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,534 | 13.75 | 641 S |
| 9.625 | 1,535 | 13.75 | 491 S |
| 5.5 | 5,898 | 8.75 | 1,180 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 | Jul 11, 2012 | Oct 28, 2011 | — |
| 00 | May 8, 2007 | Feb 9, 2007 | — |
| 00 | Mar 5, 2007 | — | — |
| 00 | Feb 14, 2007 | Mar 29, 2006 | Yes |
| 00 | Oct 5, 2006 | — | — |
| 00 | Feb 4, 1999 | Sep 9, 1998 | Yes |
| 00 | Nov 16, 1998 | — | — |
| 00 | Feb 27, 1992 | Jan 8, 1992 | Yes |
| 00 | Jan 27, 1992 | May 22, 1974 | — |
| 00 | Jan 12, 1984 | May 22, 1974 | — |
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 42-391-30306 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-30306 → 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/39130306, documented in the API reference.