TEXAS · WELLS · ZAPATA COUNTY · MARSHALL, S. G. LEASE · API 42-505-32957 · DISTRICT 04
Marshall S. G. #21
Zapata County · Las Ovejas (Lobo 6) field · Vertical
Marshall S. G. #21 (API 42-505-32957) is a plugged well in Zapata County, plugged July 29, 1997, last operated by Enron Oil & Gas Company.
The RRC has issued one drilling permit, issued November 10, 1992, permitted to 12,600 ft.
Completion filings report 2 formation tops, including Wilcox, Wills Point.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Nov 4, 1998
- Permits on file
- 2,825
- Phone
- (713) 853-7245
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Enron Oil & Gas Company |
| Production reports | Enron Oil & Gas Companythrough Jul 1997 |
| Latest permit | Enron Oil & Gas CompanyNov 10, 1992 |
- 12,600
- total depth, ft
- 1
- permits on file
- Nov 10, 1992
- last permit issued
- Mar 5, 1993
- completed
- 0
- cumulative oil, bbl
- 190K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 1993 THROUGH Jul 1997
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 5, 1993
- Shut in
- —
- Plugged
- Jul 29, 1997
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 |
|---|---|---|---|---|---|---|
| Marshall, S. G. G-4-144587 | Las Ovejas (Lobo 6) | Enron Oil & Gas Company | 1 | 0 | 190K | Mar 1993 – Jul 1997 |
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.
- 1Enron Oil & Gas CompanyMar 1993 → Jul 1997
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 405949-99 | Drill | Enron Oil & Gas Company | Nov 10, 1992 | Nov 10, 1992 | Dec 11, 1992 | 12,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 5, 1993 | Marshall S. G. G-4-144587 | Las Ovejas (Lobo 6) | Enron Oil & Gas Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 549 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wilcox | 5,648 | -5,099 |
| WilcoxLOWER WILCOX | 7,920 | -7,371 |
| Wills Point | 11,627 | -11,078 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,867 | 11,107 | Perforated |
| 11,432 | 11,468 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,030 | 12.25 | 370 S |
| 7 | 8,136 | 8.75 | 400 S |
| 2.875 | 11,729 | 6.25 | 880 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 | Apr 9, 1993 | Mar 9, 1993 | Yes |
| 00 | Apr 5, 1993 | — | — |
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 42-505-32957 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-32957 → 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/50532957, documented in the API reference.