TEXAS · WELLS · MATAGORDA COUNTY · OLD OCEAN UNIT LEASE · API 42-321-00764 · DISTRICT 03
Old Ocean Unit #21
Matagorda County · Old Ocean (Armstrong) field · Vertical
Old Ocean Unit #21 (API 42-321-00764) is a plugged well in Matagorda County, plugged July 21, 1988, last operated by Amoco Production CO.-Alvin.
The RRC has issued 2 drilling permits between 1986 and 1987, permitted to 10,248 ft.
It was permitted by Amoco Production Company and has since transferred to Amoco Production CO.-Alvin on the wellbore schedule.
Its lease has reported 7.96K barrels of oil and 222K mcf of gas since January 1993, last reporting in July 2026. The lease carries 32 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Amoco Production Company; the EWA schedule now lists a different operator.
- Based in
- Sweeny, TX
- P-5 status
- Inactive (I)
- Permits on file
- 74
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Amoco Production Co.-Alvin |
| Production reports | Hilcorp Energy Companythrough Feb 2008 |
| Latest permit | Amoco Production CompanyApr 17, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,248
- total depth, ft
- 2
- permits on file
- Apr 17, 1987
- last permit issued
- Jan 1, 1964
- completed
- 7.96K
- cumulative oil, bbl
- 222K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 1, 1964
- Shut in
- —
- Plugged
- Jul 21, 1988
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 32 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Old Ocean Unit O-3-3213 | Old Ocean (Armstrong) | Hilcorp Energy Company | 32 | 7.96K | 222K | 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.
- 1Amoco Production CompanyJan 1993 → Sep 1996
- 2Hilcorp Energy CompanyDec 1999 → Feb 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 329174-99 | Recompletion | Amoco Production Company | Apr 17, 1987 | Apr 17, 1987 | — | 10,248 |
| 296126-99 | Recompletion | Amoco Production Company | Jan 24, 1986 | Jan 24, 1986 | — | 10,248 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 1, 1964 | — G-3-32360 | Old Ocean (Armstrong) | Amoco Production Co.-Alvin | Plugged | — |
| Mar 31, 1948 | Old Ocean Unit O-3-3213 | Old Ocean (Armstrong) | Hilcorp Energy Company | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,918 | 5,920 | Perforated |
| 10,074 | 10,079 | Perforated |
| 10,091 | 10,098 | Perforated |
| 10,134 | 10,142 | Perforated |
| 10,174 | 10,180 | Perforated |
| 10,174 | 10,200 | Perforated |
| 10,182 | 10,186 | Perforated |
| 10,188 | 10,194 | Perforated |
| 10,196 | 10,200 | Perforated |
| 10,222 | 10,226 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,502 | 18 | 375 S |
| 9.625 | 6,802 | 12.25 | 1,000 S |
| 7 | 9,939 | 8.625 | 750 S |
| 2.875 | 10,228 | — | — |
| 7 | 10,248 | 8.625 | 750 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 | Oct 27, 1987 | Oct 2, 1987 | Yes |
| 00 | Apr 11, 1984 | Feb 27, 1984 | — |
| 00 | Jan 12, 1984 | Feb 27, 1984 | — |
| 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 42-321-00764 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-00764 → 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/32100764, documented in the API reference.