WELL · 42-391-01812 · DISTRICT 2
Oconnor Thos. -B- #35
Refugio County · Mary Ellen Oconnor (FS-96) field · Vertical
Oconnor Thos. -B- #35 (API 42-391-01812) is a plugged well in Refugio County, plugged September 9, 2021, last operated by Hilcorp Energy Company.
The RRC has issued one drilling permit, issued April 2, 2007, permitted to 6,150 ft.
Completion filings report one formation top, including No Change.
Its 2 leases have reported 2.56K barrels of oil and 17.5K mcf of gas since January 1993, last reporting in October 2021. The leases carry 16 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,454
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Jul 2011 |
| Latest permit | Hilcorp Energy CompanyApr 2, 2007 |
- 6,150
- total depth, ft
- 1
- permits on file
- Apr 2, 2007
- last permit issued
- —
- completed
- 2.56K
- cumulative oil, bbl
- 17.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2021
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- Sep 9, 2021
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 2 leases this well is completed on; they carry 16 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Oconnor, Thos. -B- O-2-968 | Mary Ellen Oconnor (FS-96) | Hilcorp Energy Company | 15 | 2.56K | 250 | Jan 1993 – Oct 2021 |
| O'Connor, Thomas "B" G-2-228252 | Mary Ellen Oconnor (FQ-40 Sand) | Hilcorp Energy Company | 1 | 0 | 17.2K | Mar 2007 – Sep 2021 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Hilcorp Energy CompanyMay 2007 → Jul 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 635923-99 | Recompletion | Hilcorp Energy Company | Mar 26, 2007 | Apr 2, 2007 | Mar 6, 2007 | 6,150 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-228252 | — | — | — | — |
| — | — O-2-968 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 35 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| NO Change | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,870 | 5,878 | Perforated |
| — | 5,458 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,336 | 13.75 | 450 S |
| 5.5 | 6,006 | 8.75 | 1,205 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 27, 2007 | Jun 15, 2007 | Yes |
| 00 | Jul 23, 2007 | — | — |
| 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 42-391-01812 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-01812 → 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/39101812, documented in the API reference.