TEXAS · WELLS · DUVAL COUNTY · API 42-131-36720 · DISTRICT 04
Sepulveda J.M. #1
Duval County · Agua Prieta (3870) field · Vertical
Sepulveda J.M. #1 (API 42-131-36720) is a plugged well in Duval County, plugged April 20, 2015, last operated by Sun Exploration Inc..
The RRC has issued one drilling permit, issued May 24, 1985, permitted to 6,000 ft.
It was permitted by Rio Exploration Company and has since transferred to Sun Exploration Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Cole, Hockley (3870'), Hockley (4000'), Pettus.
Its 2 leases have reported 30 barrels of oil and 150K mcf of gas since January 1993, last reporting in July 2015. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Rio Exploration Company; the EWA schedule now lists a different operator.
- Based in
- Alice, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Feb 5, 2026
- Permits on file
- 1
- Phone
- (361) 664-8000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sun Exploration Inc. |
| Production reports | Southwest Gathering Companythrough Apr 2014 |
| Latest permit | Rio Exploration CompanyMay 24, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- May 24, 1985
- last permit issued
- Oct 5, 1985
- completed
- 30
- cumulative oil, bbl
- 150K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2015
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 5, 1985
- Shut in
- —
- Plugged
- Apr 20, 2015
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 |
|---|---|---|---|---|---|---|
| Sepulveda, J.M. O-4-13801 | Agua Prieta (3870) | Sun Exploration, Inc. | 1 | 30 | 0 | Nov 2013 – Jul 2015 |
| Sepulveda, J.M. G-4-118538 | Agua Prieta (3870) | Southwest Gathering Company | 1 | 0 | 150K | Jan 1993 – May 2014 |
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.
- 1Southwest Gathering CompanyJan 1993 → Apr 2014
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 275993-99 | Drill | Rio Exploration Company | Jun 13, 1985 | May 24, 1985 | Jun 16, 1985 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 5, 1985 | Sepulveda J.M. O-4-13801 | Agua Prieta (3870) | Sun Exploration Inc. | Plugged | — |
| Oct 2, 1985 | Sepulveda J.M. G-4-118538 | Agua Prieta (3870) | Southwest Gathering Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 436 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cole | 3,358 | -2,922 |
| Hockley (3870') | 3,868 | -3,432 |
| Hockley (4000') | 4,010 | -3,574 |
| Pettus | 4,756 | -4,320 |
| Pettus | 4,758 | -4,322 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,869 | 3,874 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,076 | 12.25 | 750 S |
| 4.5 | 4,181 | 7.875 | 320 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 | Feb 12, 2014 | Nov 30, 2013 | — |
| 00 | Nov 13, 1985 | Oct 17, 1985 | Yes |
| 00 | Nov 1, 1985 | — | — |
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 42-131-36720 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-36720 → 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/13136720, documented in the API reference.