WELL · 42-391-01920 · DISTRICT 2
O Connor L. W. #4
Refugio County · Mary Ellen Oconnor (FS-75) field · Vertical
O Connor L. W. #4 (API 42-391-01920) is a plugged well in Refugio County, plugged January 15, 2019, last operated by O Connor Energy Management LLC.
The RRC has issued one drilling permit, issued August 16, 2011, permitted to 6,005 ft.
It was permitted by Emerald Oil & Gas LC and has since transferred to O Connor Energy Management LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Yegua, Fs 75, Ft 28.
Its 2 leases have reported 98K barrels of oil and 388K mcf of gas since January 1993, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.
Operator of record
O Connor Energy Management LLC
Permitted by Emerald Oil & Gas LC; the EWA schedule now lists a different operator.
Victoria, TX · P-5 Y, filed Aug 2, 2019 · 2 permits on file · (361) 220-2044
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | O Connor Energy Management LLC |
| Production reports | Emerald Oil & Gas LCthrough Dec 2015 |
| Latest permit | Emerald Oil & Gas LCAug 16, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,005
- total depth, ft
- 1
- permits on file
- Aug 16, 2011
- last permit issued
- Aug 12, 2011
- completed
- 98K
- cumulative oil, bbl
- 388K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 12, 2011
- Shut in
- —
- Plugged
- Jan 15, 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 2 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| O'Connor, L. W. O-2-7250 | Mary Ellen Oconnor (FS-75) | O'Connor Energy Management, LLC | 5 | 98K | 227K | Jan 1993 – Jul 2026 |
| Oconnor, L. W. G-2-2990 | Mary Ellen Oconnor (FS-1) | O'Connor Energy Management, LLC | 1 | 0 | 162K | Jan 1993 – Jan 2019 |
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.
- 1Pace Oil and Gas CompanyJan 1993 → Dec 1993
- 2Dewbre Petroleum CorporationJan 1994 → Sep 1996
- 3Emerald Oil & Gas LCOct 1996 → Dec 2015
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 722217-99 | Recompletion | Emerald Oil & Gas LC | Aug 12, 2011 | Aug 16, 2011 | Jul 15, 2011 | 6,005 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-2990 | — | — | — | — |
| — | — O-2-7250 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 36 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yegua | 5,180 | -5,144 |
| FS 75 | 5,288 | -5,252 |
| FT 28 | 5,565 | -5,529 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,925 | 4,935 | Perforated |
| 5,288 | 5,295 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,331 | 12.25 | 719 S |
| 5.5 | 6,000 | 7.875 | 1,015 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 | Apr 10, 2012 | Aug 17, 2011 | — |
| 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 42-391-01920 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-01920 → 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/39101920, documented in the API reference.