WELL · 42-391-01394 · DISTRICT 2
Tom Oconnor (5800 SD) Fld. Unit #105
Refugio County · Tom Oconnor (5800) field · Vertical
Tom Oconnor (5800 SD) Fld. Unit #105 (API 42-391-01394) is a well in Refugio County operated by Hilcorp Energy Company, completed June 19, 2009.
The RRC has issued 2 drilling permits between 2009 and 2019, permitted to 5,845 ft.
Completion filings report 6 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.
Its 2 leases have reported 23.1M barrels of oil and 15.7M mcf of gas since January 1993, last reporting in July 2026. The leases carry 620 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Hilcorp Energy CompanyOct 11, 2019 |
- 5,845
- total depth, ft
- 2
- permits on file
- Oct 11, 2019
- last permit issued
- Jun 19, 2009
- completed
- 23.1M
- cumulative oil, bbl
- 15.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 19, 2009
- Shut in
- —
- Plugged
- —
Surface location
28.336815, -97.177442
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Refugio County.
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 620 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lambert, M. F. O-2-1549 | Tom Oconnor | Hilcorp Energy Company | 26 | 315K | 830K | Jan 1993 – Jul 2026 |
| Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | 594 | 22.8M | 14.9M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 674,530 · prior 12 524,408(+29%)
Gas, mcf lease total
Last 12 months 117,526 · prior 12 83,712(+40%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pennzoil Exploration & Prod. Co.Jan 1993 → Jan 1999
- 2Quintana Pet. Corp.Jan 1993 → Nov 2000
- 3Pennzenergy Exp. & Prod., L.L.C.Mar 1999 → Nov 1999
- 4Devon Energy Production Co, L.P.Nov 2000 → Jul 2002
- 5Hilcorp Energy CompanyDec 2000 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 857785-99 | Recompletion | Hilcorp Energy Company | Oct 7, 2019 | Oct 11, 2019 | Nov 4, 2019 | 5,845 |
| 681473-99 | Recompletion | Hilcorp Energy Company | May 21, 2009 | May 27, 2009 | Jun 16, 2009 | 5,845 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-1549 | — | — | — | — |
| — | — O-2-1549 | — | — | — | — |
| — | — O-2-5280 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 62 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,590 | 5,600 | Perforated |
| 5,591 | 5,600 | Perforated |
| 5,742 | 5,753 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,021 | 15 | 460 S |
| 7 | 5,845 | 9.875 | 500 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 | Mar 6, 2020 | Nov 14, 2019 | Yes |
| 00 | Oct 20, 2009 | Jul 2, 2009 | Yes |
| 00 | Sep 10, 2009 | — | — |
| 00 | Jan 12, 1984 | Jan 23, 1975 | — |
| 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 42-391-01394 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-01394 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
M. F. Lambert42-391-01388
0.1 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,627 | -3,576 |
| Frio | 4,375 | -4,324 |
| Tom O'Connor (5200, East) | 5,159 | -5,108 |
| Tom O'Connor (5900 Sand) | 5,858 | -5,807 |
| Jackson | — |
Tom O'Connor (5800 SD) Fld. Unit42-391-01444
0.2 KM · Hilcorp Energy Company · Section with this well →
| Lagarto | 2,750 | -2,699 |
| Catahoula | 3,618 | -3,567 |
| Oakville | 4,100 | -4,049 |
| Anahuac | 4,365 | -4,314 |
| Frio | 4,374 | -4,323 |
| 4400 Sand | 4,374 | -4,323 |
| Greta | 5,120 | -5,069 |
| Jackson | — |
9 TOPS · FIRST 8
Tom O'Connor (5800'SD)FIELD Unit42-391-01364
0.3 KM · Quintana Pet. Corp. · Section with this well →
| Lagarto | 1,500 | -1,437 |
| Oakville | 2,750 | -2,687 |
| Catahoula | 3,300 | -3,237 |
| Catahoula | 3,300 | -3,237 |
| Catahoula | 3,300 | -3,237 |
| Anahuac | 4,100 | -4,037 |
| Anahuac | 4,100 | -4,037 |
| Frio | 4,365 | -4,302 |
16 TOPS · FIRST 8
Lambert, M.F.42-391-33297
0.5 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,300 | -3,250 |
| Jackson | — | |
| Frio | — |
Lambert, M.F.42-391-33298
0.5 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,300 | -3,250 |
| Frio | 4,365 | -4,315 |
| Jackson | — |
Tom O'Connor (5800 SD) Fld. Unit42-391-32794
0.5 KM · Hilcorp Energy Company · Section with this well →
| Lagarto | 2,750 | -2,699 |
| Oakville | 3,300 | -3,249 |
| Catahoula | 3,614 | -3,563 |
| Catahoula | 4,100 | -4,049 |
| Ananhuac | 4,365 | -4,314 |
| Anahuac | 4,365 | -4,314 |
| Frio | 4,389 | -4,338 |
| Frio | 4,785 | -4,734 |
12 TOPS · FIRST 8
Tom O'Connor (5800 SD) Fld. Unit42-391-01396
0.5 KM · Pennzoil Producing Co. · Section with this well →
| Catahoula | 3,635 | -3,577 |
| Frio | 4,360 | -4,302 |
| 4400 | 4,360 | -4,302 |
| 4500 | 4,428 | -4,370 |
| 5400 | 5,456 | -5,398 |
| 5450' | 5,496 | -5,438 |
| 5500' | 5,538 | -5,480 |
| 5800' | 5,750 | -5,692 |
9 TOPS · FIRST 8
Tom O'Connor (5800 SD) Fld. Unit42-391-01433
0.5 KM · Hilcorp Energy Company · Section with this well →
| Lagarto | 2,750 | -2,700 |
| Catahoula | 3,627 | -3,577 |
| Oakville | 4,100 | -4,050 |
| Anahuac | 4,365 | -4,315 |
| Frio | 4,400 | -4,350 |
| Jackson | — | |
| NO Change | — |
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/39101394, documented in the API reference.