TEXAS · WELLS · MATAGORDA COUNTY · API 42-321-00100 · DISTRICT 03
Ohio-Sun Unit #5B
Matagorda County · Markham N.-Bay City N (Carlson) field · Vertical
Ohio-Sun Unit #5B (API 42-321-00100) is a well in Matagorda County operated by Goldking Minerals Mgmt L.L.C., completed November 4, 1943.
The RRC has issued one drilling permit, issued August 7, 1979, permitted to 8,133 ft.
It was permitted by Marathon Oil Company and has since transferred to Goldking Minerals Mgmt L.L.C. on the wellbore schedule.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Marathon Oil Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 10, 2026
- Permits on file
- 1
- Phone
- (713) 228-5464
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Goldking Minerals Mgmt L.L.C. |
| Production reports | none |
| Latest permit | Marathon Oil CompanyAug 7, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,133
- total depth, ft
- 1
- permits on file
- Aug 7, 1979
- last permit issued
- Nov 4, 1943
- completed
- —
- cumulative oil, bbl
- —
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 4, 1943
- Shut in
- —
- Plugged
- —
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.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 54781-99 | Recompletion | Marathon Oil Company | Aug 7, 1979 | Aug 7, 1979 | — | 8,133 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 4, 1943 | Ohio-Sun Unit O-3-2996 | Markham N.-Bay City N (Carlson) | Goldking Minerals Mgmt L.L.C. | Not on Schedule | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,896 | 7,831 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,580 | 15 | — |
| 2 | 6,897 | — | — |
| 2 | 7,772 | — | — |
| 5.5 | 8,133 | 8.75 | — |
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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 12, 1984 | Dec 17, 1964 | — |
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 42-321-00100 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-00100 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/32100100, documented in the API reference.