TEXAS · WELLS · HIDALGO COUNTY · API 42-215-32661 · DISTRICT 04
Castillo-Flores GU #4
Hidalgo County · Jeffress NE. (Vicksburg T) field · SWR-10-Well · Vertical
Castillo-Flores GU #4 (API 42-215-32661) is a well in Hidalgo County operated by Merit Energy Company, completed August 29, 1999 and listed as swr-10-well on the RRC schedule, shut in February 1, 2022.
The RRC has issued 2 drilling permits (amended once) between 1999 and 2014, permitted to 11,850 ft.
It was permitted by Cantera Operating, LLC and has since transferred to Merit Energy Company on the wellbore schedule.
Completion filings report 9 formation tops, including Sullivan Sand, J-1 Sand, K-1 Sand, O Sand.
Its 3 leases have reported 12.6K barrels of oil and 3.7M mcf of gas since August 1999, with no volume in the three years through April 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cantera Operating, 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 Oct 2024 |
| Latest permit | Cantera Operating, LLCAug 7, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,850
- total depth, ft
- 3
- permits on file
- Aug 7, 2014
- last permit issued
- Aug 29, 1999
- completed
- 12.6K
- cumulative oil, bbl
- 3.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 1999 THROUGH Oct 2024
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 29, 1999
- Shut in
- Feb 1, 2022
- 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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Castillo-Flores GU G-4-275426 | Jeffress (Vicksburg 6700) | Merit Energy Company | 1 | 1.79K | 239K | Sep 2014 – Oct 2024 |
| Castillo-Flores GU G-4-174498 | Jeffress, NE. (T, Lo.-Fb,a) | Merit Energy Company | 1 | 10.8K | 3.46M | Aug 1999 – Aug 2014 |
| Castillo-Flores GU G-4-176108 | Jeffress, NE. (Vicksburg T) | Merit Energy Company | 1 | 0 | 0 | Aug 1999 – — |
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.
- 1Coastal Oil & Gas CorporationAug 1999 → Jun 2001
- 2El Paso Production Oil & Gas Co.Jul 2001 → Jul 2006
- 3El Paso E & P Company, L. P.Aug 2006 → Jul 2012
- 4EP Energy E&P Company, L.P.Aug 2012 → Oct 2013
- 5Cantera Operating, LLCDec 2013 → Nov 2017
- 6Merit Energy CompanyDec 2017 → Jan 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 791569-98 | Recompletion | Cantera Operating, LLC | Sep 23, 2014 | Aug 7, 2014 | Jul 10, 2014 | 11,850 |
| 791569-99 | Recompletion | Cantera Operating, LLC | Jul 12, 2014 | Aug 7, 2014 | — | 11,850 |
| 485702-99 | Drill | Coastal Oil & Gas Corporation | Jul 8, 1999 | Jul 8, 1999 | Jul 12, 1999 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 2, 2014 | Castillo-Flores GU G-4-275426 | Jeffress (Vicksburg 6700) | Merit Energy Company | Temp Abandoned · shut in Feb 1, 2022 | 11,850 |
| Aug 29, 1999 | Castillo-Flores GU G-4-176108 | Jeffress NE. (Vicksburg T) | Merit Energy Company | SWR-10-Well · shut in Oct 1, 2000 | 11,850 |
| Aug 20, 1999 | Castillo-Flores GU G-4-174498 | Jeffress NE. (T Lo.-FB A) | Merit Energy Company | Producing · shut in Aug 1, 2014 | 11,850 |
Formation tops
As filed on W-2/G-1. Subsea from 311 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Sullivan Sand | 4,992 | -4,681 |
| J-1 Sand | 7,010 | -6,699 |
| K-1 Sand | 7,946 | -7,635 |
| O Sand | 9,040 | -8,729 |
| T Sand | 9,926 | -9,615 |
| CatahoulaCATAHOULA-ANAHUAC - INJECTION/DI | — | — |
| CatahoulaCATAHOULA-FRIO - INJECTION/DISPO | — | — |
| Jackson | — | — |
| Miocene (undifferentiated)MIOCENE-LAGARTO-OAKVILLE - INJEC | — | — |
| VicksburgVICKSBURG - INJECTION/DISPOSAL; | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,890 | 6,900 | Perforated |
| 9,977 | 10,210 | Perforated |
| 10,532 | 10,763 | Perforated |
| 11,255 | 11,437 | Perforated |
| 11,500 | 11,566 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,000 | 17.5 | 1,355 S |
| 9.625 | 7,696 | 12.25 | 460 S |
| 4.5 | 11,850 | 8.5 | 1,130 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 15, 2015 | Oct 27, 2014 | — |
| 00 | Apr 21, 2000 | Dec 29, 1999 | — |
| 00 | Mar 23, 2000 | — | — |
| 00 | Nov 3, 1999 | Oct 8, 1999 | Yes |
| 00 | Oct 25, 1999 | — | — |
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 42-215-32661 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-215-32661 → 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/21532661, documented in the API reference.