WELL · 42-131-36579 · DISTRICT 4
Duval Co. Ranch Co.-State -L- #38
Duval County · Colmena field · Vertical
Duval CO. Ranch CO.-State -L- #38 (API 42-131-36579) is a plugged well in Duval County, plugged October 26, 2017, last operated by Caribbean Energy LLC II.
The RRC has issued one drilling permit, issued October 30, 1984, permitted to 1,500 ft.
It was permitted by Speedman Company and has since transferred to Caribbean Energy LLC II on the wellbore schedule.
Completion filings report one formation top, including Cole.
Its lease has reported 133K barrels of oil and 20 mcf of gas since January 1993, last reporting in July 2026. The lease carries 36 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Speedman Company; the EWA schedule now lists a different operator.
Cotulla, TX · P-5 Y, filed Jul 4, 2026 · 1 permits on file · (830) 202-7200
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Caribbean Energy LLC II |
| Production reports | Caribbean Energy LLC IIthrough Apr 2026 |
| Latest permit | Speedman CompanyOct 30, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,500
- total depth, ft
- 1
- permits on file
- Oct 30, 1984
- last permit issued
- Mar 21, 1985
- completed
- 133K
- cumulative oil, bbl
- 20
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 21, 1985
- Shut in
- —
- Plugged
- Oct 26, 2017
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; they carry 36 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duval Co. Ranch Co.-State -L- O-4-557 | Colmena | Caribbean Energy LLC II | 36 | 133K | 20 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 855 · prior 12 828(+3%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dewbre Petroleum CorporationJan 1993 → Aug 2011
- 2Coronado Minerals, LLCSep 2011 → Oct 2012
- 3Aspen Operating Company, L.L.C.Nov 2012 → Nov 2012
- 4Trace Operating, LLCDec 2012 → Oct 2018
- 5Black Bayou Operating, LLCNov 2018 → May 2020
- 6Rattlesnake Operating Co, LLCSep 2020 → Jul 2025
- 7Caribbean Energy LLC IIOct 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 256189-99 | Drill | Speedman Company | Oct 30, 1984 | Oct 30, 1984 | — | 1,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-557 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 535 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cole | 1,355 | -820 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,374 | 1,378 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,457 | 7.875 | 265 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 3, 1985 | Apr 11, 1985 | — |
| 00 | Apr 25, 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 42-131-36579 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-36579 → 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/13136579, documented in the API reference.