WELL · 42-391-31251 · DISTRICT 2
O Conner Mary Ellen #55
Refugio County · Mary Ellen Oconnor (FQ-25) field · Vertical
O Conner Mary Ellen #55 (API 42-391-31251) is a plugged well in Refugio County, plugged April 29, 2022, last operated by Dolphin Petroleum LP.
The RRC has issued 3 drilling permits between 1978 and 2004, permitted to 6,000 ft.
It was permitted by Citation Oil & Gas Corp. and has since transferred to Dolphin Petroleum LP on the wellbore schedule.
Its lease has reported 32.2K barrels of oil and 80K mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Citation Oil & Gas Corp.; the EWA schedule now lists a different operator.
- Based in
- Alice, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- May 29, 2025
- Phone
- (361) 290-5678
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Dolphin Petroleum, LPthrough Jul 2016 |
| Latest permit | Citation Oil & Gas Corp.Oct 25, 2004 |
- 6,000
- total depth, ft
- 3
- permits on file
- Oct 25, 2004
- last permit issued
- Apr 18, 1980
- completed
- 32.2K
- cumulative oil, bbl
- 80K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 18, 1980
- Shut in
- —
- Plugged
- Apr 29, 2022
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 lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| O'Conner, Mary Ellen O-2-5905 | Mary Ellen Oconnor (FQ-25) | Dolphin Petroleum, LP | 2 | 32.2K | 80K | Jan 1993 – Jul 2026 |
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.
- 1Citation Oil & Gas Corp.Jan 1993 → Aug 2006
- 2Dolphin PetroleumSep 2006 → Jun 2008
- 3Dolphin Petroleum, LPJul 2008 → Jul 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 552774-99 | Recompletion | Citation Oil & Gas Corp. | Oct 25, 2004 | Oct 25, 2004 | — | 6,000 |
| 75566-99 | Recompletion | Amoco Production Company | Mar 18, 1980 | Mar 18, 1980 | — | 6,000 |
| 22168-99 | Drill | Amoco Production Company | Apr 14, 1978 | Apr 14, 1978 | Jun 24, 1978 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 18, 1980 | O Conner Mary Ellen O-2-5905 | Mary Ellen Oconnor (FQ-25) | Dolphin Petroleum LP | Plugged | — |
| Jul 18, 1978 | Oconnor Mary Ellen G-2-77923 | Mary Ellen Oconnor (FQ-40 Sand) | Amoco Production Company | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,829 | 5,836 | Perforated |
| 5,871 | 5,877 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,233 | 14.75 | 960 S |
| 2.375 | 5,691 | — | — |
| 7 | 6,000 | 9.75 | 1,015 S |
| 2.375 | — | — | — |
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 | Jan 12, 1984 | May 7, 1980 | — |
| 00 | Jan 12, 1984 | Aug 1, 1978 | — |
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 42-391-31251 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31251 → 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/39131251, documented in the API reference.