TEXAS · WELLS · ZAPATA COUNTY · API 42-505-35346 · DISTRICT 04
Trevino B #4
Zapata County · Roleta (7483) field · SWR-10-Well · Vertical
Trevino B #4 (API 42-505-35346) is a well in Zapata County operated by Merit Energy Company, completed December 8, 2007 and listed as swr-10-well on the RRC schedule.
The RRC has issued 2 drilling permits between 2005 and 2007, permitted to 10,100 ft.
It was permitted by Coronado Energy E&P Company, LLC and has since transferred to Merit Energy Company on the wellbore schedule.
Completion filings report 4 formation tops, including 7483 Sand, Vela 2 Sand, Upper Guerr, Upper Guerra.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Coronado Energy E&P Company, LLC; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 7, 2025
- Permits on file
- 1,049
- Phone
- (972) 701-8377
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Merit Energy Company |
| Production reports | Merit Energy Companythrough Apr 2026 |
| Latest permit | Coronado Energy E&P Company, LLCDec 20, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,100
- total depth, ft
- 2
- permits on file
- Dec 20, 2007
- last permit issued
- Dec 8, 2007
- completed
- 0
- cumulative oil, bbl
- 2.11M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2005 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 8, 2007
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 "B' G-4-216616 | Roleta (Wilcox Consolidated) | Merit Energy Company | 1 | 0 | 2.11M | Oct 2005 – Jul 2026 |
| Trevino "B" G-4-234643 | Roleta (7483) | Merit Energy Company | 1 | 0 | 0 | Dec 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 1,081 · prior 12 1,097(-1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Peoples Energy Prod.-TX, L.P.Oct 2005 → Sep 2007
- 2Coronado Energy E&P Company, LLCOct 2007 → Dec 2010
- 3El Paso E & P Company, L. P.Jan 2011 → Jul 2012
- 4EP Energy E&P Company, L.P.Aug 2012 → Oct 2013
- 5Cantera Operating, LLCNov 2013 → Nov 2017
- 6Merit Energy CompanyDec 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 651525-99 | Recompletion | Coronado Energy E&P Company, LLC | Dec 17, 2007 | Dec 20, 2007 | Nov 30, 2007 | 11,300 |
| 604815-99 | Drill | Peoples Energy Prod.-TX, L.P. | Aug 11, 2005 | Aug 12, 2005 | Sep 27, 2005 | 11,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 8, 2007 | Trevino B G-4-234643 | Roleta (7483) | Merit Energy Company | SWR-10-Well · shut in Dec 1, 2007 | 10,100 |
| Oct 25, 2005 | Trevino B G-4-216616 | Roleta (Wilcox Consolidated) | Merit Energy Company | Producing | 10,100 |
Formation tops
As filed on W-2/G-1. Subsea from 20 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| 7483 Sand | 7,783 | -7,763 |
| Vela 2 Sand | 8,539 | -8,519 |
| Upper Guerr | 9,256 | -9,236 |
| Upper Guerra | 9,256 | -9,236 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,818 | 7,870 | Perforated |
| 8,544 | 8,574 | Perforated |
| 9,264 | 9,268 | Perforated |
| 9,268 | 9,264 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,378 | 17.5 | 795 S |
| 9.625 | 7,560 | 12.25 | 625 S |
| 4.5 | 9,623 | 8.5 | 650 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 | May 14, 2008 | Feb 7, 2008 | — |
| 00 | May 1, 2008 | — | — |
| 00 | Apr 26, 2007 | Jan 25, 2007 | — |
| 00 | Mar 29, 2007 | Oct 11, 2006 | — |
| 00 | Mar 2, 2007 | Jul 10, 2006 | — |
| 00 | Oct 13, 2006 | Dec 5, 2005 | Yes |
| 00 | Jun 28, 2006 | — | — |
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 42-505-35346 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-35346 → 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/50535346, documented in the API reference.