TEXAS · WELLS · SAN PATRICIO COUNTY · WELDER, E. H., -C- LEASE · API 42-409-01564 · DISTRICT 04
Welder E. H. -C- #12
San Patricio County · Plymouth field · Vertical
Welder E. H. -C- #12 (API 42-409-01564) is a plugged well in San Patricio County, plugged October 29, 1996, last operated by Mcgowan Working Partners Inc..
The RRC has issued one drilling permit, issued April 7, 1978, permitted to 5,650 ft.
It was permitted by Marathon Oil Company and has since transferred to Mcgowan Working Partners Inc. on the wellbore schedule.
Its lease has reported 763K barrels of oil and 1.16M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 51 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Marathon Oil Company; the EWA schedule now lists a different operator.
- Based in
- Jackson, MS
- P-5 status
- Active (A)
- P-5 last filed
- Oct 27, 2025
- Permits on file
- 60
- Phone
- (601) 982-3444
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | McGowan Working Partners Inc. |
| Production reports | McGowan Working Partners, Inc.through Apr 2026 |
| Latest permit | Marathon Oil CompanyApr 7, 1978 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,650
- total depth, ft
- 1
- permits on file
- Apr 7, 1978
- last permit issued
- Dec 19, 1979
- completed
- 763K
- cumulative oil, bbl
- 1.16M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 19, 1979
- Shut in
- —
- Plugged
- Oct 29, 1996
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 51 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Welder, E. H., -C- O-4-2126 | Plymouth | McGowan Working Partners, Inc. | 51 | 763K | 1.16M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 34,004 · prior 12 32,661(+4%)
Gas, mcf lease total
Last 12 months 43,949 · prior 12 34,916(+26%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyJan 1993 → Jan 2003
- 2EOG Resources, Inc.Feb 2003 → Feb 2004
- 3McGowan Working Partners, Inc.Aug 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 21636-99 | Recompletion | Marathon Oil Company | Apr 7, 1978 | Apr 7, 1978 | — | 5,650 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 19, 1979 | Welder E. H. -C- O-4-2126 | Plymouth | McGowan Working Partners Inc. | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,938 | 5,003 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13 | 306 | — | 200 S |
| 3.5 | 4,828 | — | — |
| 7.625 | 5,632 | 10.625 | 300 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. 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 | May 29, 1979 | — |
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 42-409-01564 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-409-01564 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 90.4K
- bbl, last 12 reported months
- 3.6M
- bbl, all reported
- Jan 1997
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000004441 | W-14 Disposal | Plugged Nov 21, 1996 | 8,000 | 1,200 | 4,880–5,020 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 90,427 · prior 12 330,379(-73%)
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/40901564, documented in the API reference.