TEXAS · WELLS · ZAPATA COUNTY · API 42-505-33488 · DISTRICT 04
Trevino A. #4
Zapata County · Cisco-Benavides (Lobo Cons.) field · Vertical
Trevino A. #4 (API 42-505-33488) is a plugged well in Zapata County, plugged July 18, 2012, last operated by Eog Resources Inc..
The RRC has issued one drilling permit (amended once), issued October 4, 1996, permitted to 10,700 ft.
It was permitted by Enron Oil & Gas Company and has since transferred to Eog Resources Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Top Lobo Unc, Top Lobo Use, Wills Point.
Its 2 leases have reported 288 barrels of oil and 279K mcf of gas since November 1996, with no volume in the three years through April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Enron Oil & Gas 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 | EOG Resources, Inc.through Jul 2012 |
| Latest permit | Enron Oil & Gas CompanyOct 4, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,700
- total depth, ft
- 2
- permits on file
- Oct 4, 1996
- last permit issued
- Jan 29, 1997
- completed
- 288
- cumulative oil, bbl
- 279K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1996 THROUGH Jul 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 29, 1997
- Shut in
- —
- Plugged
- Jul 18, 2012
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Trevino, A. G-4-162927 | Cisco-Benavides (Lobo Cons.) | EOG Resources, Inc. | 1 | 288 | 279K | Nov 1996 – Jul 2012 |
| Trevino, A. G-4-163620 | Francisco (Lobo 8200) | EOG Resources, Inc. | 1 | 0 | 0 | Dec 1996 – — |
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 CompanyNov 1996 → Sep 1999
- 2EOG Resources, Inc.Oct 1999 → Jul 2012
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 453486-98 | Drill | Enron Oil & Gas Company | Oct 31, 1996 | Oct 4, 1996 | Oct 7, 1996 | 10,700 |
| 453486-99 | Drill | Enron Oil & Gas Company | Oct 4, 1996 | Oct 4, 1996 | — | 10,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 29, 1997 | Trevino A. G-4-162927 | Cisco-Benavides (Lobo Cons.) | EOG Resources Inc. | Plugged | — |
| Dec 13, 1996 | Trevino A. G-4-163620 | Francisco (Lobo 8200) | EOG Resources Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 454 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Top Lobo Unc | 7,670 | -7,216 |
| Top Lobo Use | 7,670 | -7,216 |
| Wills PointTOP WILLS POINT | 9,640 | -9,186 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,181 | 8,228 | Perforated |
| 9,303 | 9,336 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,037 | 12.25 | 350 S |
| 7 | 6,139 | 8.75 | 350 S |
| 2.875 | 9,699 | 6.25 | 730 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 | Aug 19, 1997 | Jun 9, 1997 | — |
| 00 | Aug 18, 1997 | Feb 11, 1997 | Yes |
| 00 | Jul 28, 1997 | — | — |
| 00 | Jun 10, 1997 | Nov 18, 1996 | Yes |
| 00 | Jun 2, 1997 | — | — |
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 42-505-33488 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-33488 → 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/50533488, documented in the API reference.