TEXAS · WELLS · REFUGIO COUNTY · API 42-391-00370 · DISTRICT 02
T-C Oil Co.- O Connor #7
Refugio County · Lake Pasture (H-440 Sand) field · Vertical
T-C Oil CO.- O Connor #7 (API 42-391-00370) is a plugged well in Refugio County, plugged August 2, 2011, last operated by T-C Oil Company LLC.
The RRC has issued 3 drilling permits between 1980 and 2008, permitted to 6,015 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, Eocene, Miocene (undifferentiated), Catahoula.
Its 3 leases have reported 6.95M barrels of oil and 32.8M mcf of gas since January 1993, last reporting in July 2026. The leases carry 139 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 LLC |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | T - C Oil CompanyAug 22, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,015
- total depth, ft
- 3
- permits on file
- Aug 22, 2008
- last permit issued
- Aug 4, 2008
- completed
- 6.95M
- cumulative oil, bbl
- 32.8M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 4, 2008
- Shut in
- —
- Plugged
- Aug 2, 2011
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 139 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| T-C Oil Co.- O'Connor O-2-2554 | Lake Pasture (H-440 Sand) | T-C Oil Company, LLC | 114 | 6.52M | 31.4M | Jan 1993 – Jul 2026 |
| Lake Pasture /FT-569/ Field Unit O-2-4763 | Lake Pasture (FT-569) | Hilcorp Energy Company | 24 | 424K | 955K | Jan 1993 – Jul 2026 |
| T-C Oil Company-O'Connor G-2-154142 | Lake Pasture (H-484) | T - C Oil Company | 1 | 0 | 361K | Apr 1995 – Aug 2008 |
Oil, barrels lease total
Last 12 months 296,614 · prior 12 389,678(-24%)
Gas, mcf lease total
Last 12 months 97,001 · prior 12 104,986(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Quintana Pet. Corp.Jan 1993 → Nov 2000
- 2T - C Oil CompanyJan 1993 → Dec 2011
- 3Hilcorp Energy CompanyDec 2000 → Apr 2026
- 4T-C Oil Company, LLCJan 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 668378-99 | Recompletion | T - C Oil Company | Aug 6, 2008 | Aug 22, 2008 | Jul 29, 2008 | 4,975 |
| 433165-99 | Recompletion | T - C Oil Company | Feb 22, 1995 | Feb 23, 1995 | Apr 3, 1995 | 6,015 |
| 81137-99 | Recompletion | T - C Oil Company | May 14, 1980 | May 14, 1980 | — | 6,015 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 4, 2008 | T-C Oil Co.- O Connor O-2-2554 | Lake Pasture (H-440 Sand) | T-C Oil Company LLC | Plugged | — |
| Apr 17, 1995 | T-C Oil Company-O Connor G-2-154142 | Lake Pasture (H-484) | T - C Oil Company | Plugged | — |
| Jun 11, 1980 | Lake Pasture /FT-569/ Field Unit O-2-4763 | Lake Pasture (FT-569) | Hilcorp Energy Company | Plugged | — |
| Oct 31, 1966 | T-C Oil Co.-Oconnor G-2-40725 | Lake Pasture (FS-509) | T - C Oil Company | Plugged | — |
| — | T-C Oil Co.-O Connor O-2-828 | Lake Pasture (FT-569) | T - C Oil Company | Plugged | — |
| — | Lake Pasture /FT-569/ Field Unit O-2-4763 | Lake Pasture (FT-569) | Hilcorp Energy Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 59 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lagarto | 1 | 58 |
| Eocene | 2,249 | -2,190 |
| Eocene | 2,250 | -2,191 |
| Miocene (undifferentiated)MIOCENE | 2,980 | -2,921 |
| Miocene (undifferentiated)MIOCENE | 3,000 | -2,941 |
| Catahoula | 3,700 | -3,641 |
| Catahoula | 3,703 | -3,644 |
| Greta | 4,389 | -4,330 |
| Greta | 4,390 | -4,331 |
| Frio | 5,138 | -5,079 |
| Frio | 5,140 | -5,081 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,486 | 4,492 | Perforated |
| 5,070 | 5,072 | Perforated |
| 5,207 | 5,217 | Perforated |
| 5,743 | 5,749 | Perforated |
| — | 5,743 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,515 | 16 | 635 S |
| 10.75 | 1,515 | — | — |
| 10.75 | 1,516 | 16 | 635 S |
| 5.5 | 6,015 | 8.75 | 1,000 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 | Nov 20, 2008 | Aug 8, 2008 | Yes |
| 00 | Oct 28, 2008 | — | — |
| 00 | Aug 10, 1995 | Apr 24, 1995 | Yes |
| 00 | Jun 1, 1995 | — | — |
| 00 | Oct 27, 1987 | Aug 11, 1987 | — |
| 00 | Aug 25, 1987 | — | — |
| 00 | Jan 12, 1984 | Dec 5, 1966 | 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 42-391-00370 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00370 → 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/39100370, documented in the API reference.