WELL · 42-391-00036 · DISTRICT 2
O Connor H #21
Refugio County · Huff (3700) field · Vertical
O Connor H #21 (API 42-391-00036) is a plugged well in Refugio County, plugged August 27, 2019, last operated by T-C Oil Company LLC.
The RRC has issued 2 drilling permits (amended once) between 1992 and 2000, permitted to 3,701 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 2 formation tops, including Eocene, Miocene (undifferentiated).
Its 4 leases have reported 141K barrels of oil and 1.04M mcf of gas since January 1993, last reporting in July 2026. The leases carry 8 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 | T-C Oil Company, LLCthrough Apr 2026 |
| Latest permit | T - C Oil CompanyApr 10, 2000 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,701
- total depth, ft
- 3
- permits on file
- Apr 10, 2000
- last permit issued
- Nov 23, 1992
- completed
- 141K
- cumulative oil, bbl
- 1.04M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 23, 1992
- Shut in
- —
- Plugged
- Aug 27, 2019
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 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Oconnor -H- O-2-2571 | Huff (372) | T-C Oil Company, LLC | 5 | 141K | 445K | Jan 1993 – Jul 2026 |
| O'Connor "H" G-2-143832 | Huff (3700) | T-C Oil Company, LLC | 1 | 0 | 109K | Jan 1993 – Aug 2019 |
| O'Connor "H" G-2-143835 | Huff (2900) | T-C Oil Company, LLC | 1 | 0 | 430K | Jan 1993 – Aug 2019 |
| O'Connor -H- G-2-179355 | Huff ( 199) | T-C Oil Company, LLC | 1 | 0 | 57.6K | Apr 2000 – Aug 2019 |
Gas, mcf lease total
Last 12 months 22,597 · prior 12 31,371(-28%)
Oil, barrels lease total
Last 12 months 3,201 · prior 12 3,382(-5%)
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 |
|---|---|---|---|---|---|---|
| 493759-99 | Recompletion | T - C Oil Company | Apr 4, 2000 | Apr 10, 2000 | Mar 3, 2000 | 2,390 |
| 405318-98 | Recompletion | T - C Oil Company | Dec 18, 1992 | Nov 6, 1992 | Nov 9, 1992 | 3,701 |
| 405318-99 | Recompletion | T - C Oil Company | Oct 28, 1992 | Nov 6, 1992 | — | 3,701 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-143832 | — | — | — | — |
| — | — G-2-143835 | — | — | — | — |
| — | — G-2-179355 | — | — | — | — |
| — | — O-2-2571 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 77 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Eocene | 2,190 | -2,113 |
| Miocene (undifferentiated)MIOCENE | 2,930 | -2,853 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,927 | 1,930 | Perforated |
| 2,812 | 2,818 | Perforated |
| 3,695 | 3,698 | Perforated |
| — | 3,722 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,331 | 15 | 547 S |
| 5.5 | 3,832 | 9.875 | 779 S |
| 5.5 | 3,833 | 9.875 | 779 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 | Jun 12, 2001 | Aug 15, 2000 | — |
| 00 | Nov 9, 2000 | — | — |
| 00 | Mar 24, 1993 | Dec 21, 1992 | Yes |
| 00 | Feb 8, 1993 | — | — |
| 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 42-391-00036 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00036 → 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
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Nov 2014
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000108940 | W-14 Disposal | Plugged Sep 16, 2019 | 5,000 | 1,700 | 3,450–3,580 |
MONTHLY INJECTED, BBL · H-10 · LAST 12 REPORTED MONTHS
Last 12 months 0
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/39100036, documented in the API reference.