TEXAS · WELLS · SAN PATRICIO COUNTY · WELDER, E.H. "C" LEASE · API 42-409-01580 · DISTRICT 04
Welder E.H. C #11
San Patricio County · Plymouth (3550) field · Vertical
Welder E.H. C #11 (API 42-409-01580) is a plugged well in San Patricio County, plugged November 26, 2003, last operated by Eog Resources Inc..
The RRC has issued one drilling permit, issued October 18, 1978, permitted to 5,651 ft.
It was permitted by Marathon Oil Company and has since transferred to Eog Resources Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Miocene (undifferentiated), Anahuac, Frio.
Operator of record
Permitted by Marathon Oil Company; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 2, 2025
- Permits on file
- 16,354
- Phone
- (713) 651-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | EOG Resources Inc. |
| Production reports | none |
| Latest permit | Marathon Oil CompanyOct 18, 1978 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,651
- total depth, ft
- 1
- permits on file
- Oct 18, 1978
- last permit issued
- Sep 16, 1985
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH —
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 16, 1985
- Shut in
- —
- Plugged
- Nov 26, 2003
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Welder, E.H. "C" G-4-79422 | Plymouth (3550) | EOG Resources, Inc. | 1 | 0 | 0 | Jan 1993 – — |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 34943-99 | Recompletion | Marathon Oil Company | Oct 18, 1978 | Oct 18, 1978 | — | 5,651 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 16, 1985 | Welder E.H. C G-4-79422 | Plymouth (3550) | EOG Resources Inc. | Plugged | — |
| — | Welder E. H. -C- O-4-2126 | Plymouth | McGowan Working Partners Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 44 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)MIOCENE | 1 | 43 |
| Anahuac | 4,450 | -4,406 |
| Frio | 5,100 | -5,056 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,544 | 3,550 | Perforated |
| 3,556 | 3,560 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13 | 320 | — | 200 S |
| 2.375 | 3,479 | — | — |
| 7.625 | 5,635 | 11 | 300 S |
| 7.625 | 5,635 | — | 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 | Nov 25, 1985 | Oct 21, 1985 | — |
| 00 | Jan 12, 1984 | Nov 17, 1978 | — |
| 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 42-409-01580 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-409-01580 → 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/40901580, documented in the API reference.