WELL · 42-391-31228 · DISTRICT 2
EL Oso Cattle Co. #30
Refugio County · Mary Ellen Oconnor (FQ-30) field · Shut IN · Vertical
El Oso Cattle CO. #30 (API 42-391-31228) is a plugged well in Refugio County, plugged June 20, 2022, last operated by Dolphin Petroleum LP.
The RRC has issued 2 drilling permits between 1978 and 1985, permitted to 6,150 ft.
It was permitted by Amoco Production Company and has since transferred to Dolphin Petroleum LP on the wellbore schedule.
Operator of record
Permitted by Amoco Production Company; the EWA schedule now lists a different operator.
Alice, TX · P-5 Y, filed May 29, 2025 · (361) 290-5678
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Dolphin Petroleum LP |
| Production reports | none |
| Latest permit | Amoco Production CompanyMay 14, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,150
- total depth, ft
- 2
- permits on file
- May 14, 1985
- last permit issued
- Sep 4, 1985
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 4, 1985
- Shut in
- —
- Plugged
- Jun 20, 2022
Operator's P-5 on the schedule: Delinquent
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 |
|---|---|---|---|---|---|---|
| EL Oso Cattle Co. O-2-5560 | Mary Ellen Oconnor (FQ-30) | Dolphin Petroleum, LP | 2 | 0 | 0 | Jan 1993 – Jul 2026 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 275031-99 | Recompletion | Amoco Production Company | May 13, 1985 | May 14, 1985 | — | 6,150 |
| 19838-99 | Drill | Amoco Production Company | Mar 1, 1978 | Mar 1, 1978 | — | 6,150 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-5560 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,618 | 5,635 | Perforated |
| 5,934 | 5,940 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,337 | 12.25 | 850 S |
| 8.625 | 1,337 | 12.25 | 850 S |
| 5.5 | 6,138 | 8.75 | 850 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 | Dec 6, 1985 | Nov 12, 1985 | Yes |
| 00 | Jan 12, 1984 | Apr 11, 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 42-391-31228 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31228 → 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/39131228, documented in the API reference.