WELL · 42-391-00242 · DISTRICT 2
Oconnor #10
Refugio County · T-C (5600) field · Vertical
Oconnor #10 (API 42-391-00242) is a well in Refugio County operated by T-C Oil Company LLC, completed September 7, 1985.
The RRC has issued 3 drilling permits between 1985 and 1989, permitted to 6,144 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 6 formation tops, including Lagarto, Miocene (undifferentiated), Eocene, Catahoula.
Its lease has reported 366K barrels of oil and 452K mcf of gas since January 1993, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 49.3K barrels injected in the 12 months reported through November 2025.
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 LLC |
| Production reports | T-C Oil Company, LLCthrough Apr 2026 |
| Latest permit | T - C Oil CompanyAug 17, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,144
- total depth, ft
- 3
- permits on file
- Aug 17, 1989
- last permit issued
- Sep 7, 1985
- completed
- 366K
- cumulative oil, bbl
- 452K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 7, 1985
- 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 lease this well is completed on; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| O'Connor O-2-7505 | Huff (5000) | T-C Oil Company, LLC | 8 | 366K | 452K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,578 · prior 12 5,897(-39%)
Gas, mcf lease total
Last 12 months 2,620 · prior 12 4,535(-42%)
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 |
|---|---|---|---|---|---|---|
| 362698-99 | Recompletion | T - C Oil Company | Aug 14, 1989 | Aug 17, 1989 | — | 6,144 |
| 334114-99 | Recompletion | T - C Oil Company | Aug 6, 1987 | Aug 10, 1987 | — | 6,144 |
| 281723-99 | Recompletion | T - C Oil Company | Aug 1, 1985 | Aug 2, 1985 | — | 6,144 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-7505 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 67 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lagarto | 1 | 66 |
| Miocene (undifferentiated)MIOCENE | 2,110 | -2,043 |
| Eocene | 2,360 | -2,293 |
| Eocene | 2,510 | -2,443 |
| Miocene (undifferentiated)MIOCENE | 2,950 | -2,883 |
| Miocene (undifferentiated)MIOCENE | 2,985 | -2,918 |
| Catahoula | 3,740 | -3,673 |
| Catahoula | 3,785 | -3,718 |
| Catahoula | 3,790 | -3,723 |
| Greta | 4,370 | -4,303 |
| Greta | 4,435 | -4,368 |
| Greta | 4,440 | -4,373 |
| Frio | 4,765 | -4,698 |
| Frio | 4,810 | -4,743 |
| Frio | 5,012 | -4,945 |
| Lagarto | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,680 | 4,700 | Perforated |
| 5,016 | 5,020 | Perforated |
| 5,204 | 5,210 | Perforated |
| 5,340 | 5,347 | Perforated |
| 5,617 | 5,625 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,375 | — | — |
| 10.75 | 1,390 | 16 | 741 S |
| 5.5 | 5,668 | 9.875 | 950 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 30, 2019 | May 3, 2019 | — |
| 00 | Feb 7, 2012 | Oct 27, 2011 | — |
| 00 | Dec 28, 1989 | Aug 31, 1989 | Yes |
| 00 | Oct 3, 1989 | — | — |
| 00 | Oct 28, 1987 | Sep 14, 1987 | Yes |
| 00 | Sep 30, 1987 | — | — |
| 00 | Feb 4, 1986 | Dec 23, 1985 | Yes |
| 00 | Jan 7, 1986 | — | — |
| 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 42-391-00242 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00242 → 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
- 49.3K
- bbl, last 12 reported months
- 2.02M
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000103703 | H-1 Injection | Active | 2,500 | 2,100 | 4,490–4,700 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 49,295 · prior 12 59,573(-17%)
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/39100242, documented in the API reference.