WELL · 42-131-37057 · DISTRICT 4

Duval Co. Ranch Co.-State -L- #40

Plugged

Duval County · Colmena field  · Vertical

Duval CO. Ranch CO.-State -L- #40 (API 42-131-37057) is a plugged well in Duval County, plugged September 26, 2003, last operated by Caribbean Energy LLC II.

The RRC has issued one drilling permit, issued October 30, 1987, permitted to 1,600 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 Sand.

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

Caribbean Energy LLC II

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 scheduleCaribbean Energy LLC II
Production reportsCaribbean Energy LLC IIthrough Apr 2026
Latest permitSpeedman CompanyOct 30, 1987

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

1,600
total depth, ft
1
permits on file
Oct 30, 1987
last permit issued
Nov 16, 1987
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
Nov 16, 1987
Shut in
—
Plugged
Sep 26, 2003

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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Duval Co. Ranch Co.-State -L- O-4-557ColmenaCaribbean Energy LLC II36133K20Jan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 855 · prior 12 828(+3%)

0100200300202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Dewbre Petroleum CorporationJan 1993 → Aug 2011
  2. 2Coronado Minerals, LLCSep 2011 → Oct 2012
  3. 3Aspen Operating Company, L.L.C.Nov 2012 → Nov 2012
  4. 4Trace Operating, LLCDec 2012 → Oct 2018
  5. 5Black Bayou Operating, LLCNov 2018 → May 2020
  6. 6Rattlesnake Operating Co, LLCSep 2020 → Jul 2025
  7. 7Caribbean Energy LLC IIOct 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
338172-99DrillSpeedman CompanyOct 30, 1987Oct 30, 1987—1,600

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-4-557————

Formation tops

As filed on W-2/G-1. Subsea from 501 ft elevation.Download CSV →

FormationMD ftSubsea
Cole Sand——

Perforations

Perforated and open-hole intervals.

FromToType
1,3551,385Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
4.51,5157.875360 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jun 29, 1989Jun 12, 1989—
00Jun 24, 1988Mar 28, 1988Yes
00May 23, 1988——

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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

11.1K
bbl, last 12 reported months
673K
bbl, all reported
Oct 2003
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000066649H-1 InjectionPlugged Oct 22, 20031,0005501,355–1,385

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 11,061 · prior 12 13,221(-16%)

01K2K20022003

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/13137057, documented in the API reference.