TEXAS · WELLS · WINKLER COUNTY · DUNES LEASE · API 42-495-33804 · DISTRICT 7B

Dunes #191H

Y

Winkler County · Keystone (Wolfcamp) field · Producing  · Horizontal

Dunes #191H (API 42-495-33804) is a horizontal well in Winkler County operated by Formentera Operations LLC, completed September 16, 2017 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 10, 2017, permitted to 8,209 ft.

It was permitted by Boyd & Mcwilliams Operating, LLC and has since transferred to Formentera Operations LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Rustler, Yates, Colby-Queen, San Andres.

Its lease has reported 389K barrels of oil and 314K mcf of gas since September 2017, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Formentera Operations LLC

Permitted by Boyd & McWilliams Operating, LLC; the EWA schedule now lists a different operator.

Based in
Austin, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 11, 2026
Permits on file
90
Phone
(512) 514-5779

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFormentera Operations LLC
Production reportsFormentera Operations LLCthrough Apr 2026
Latest permitBoyd & McWilliams Operating, LLCMar 10, 2017

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

8,209
total depth, ft
2
permits on file
Mar 10, 2017
last permit issued
Sep 16, 2017
completed
389K
cumulative oil, bbl
314K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2017 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 16, 2017
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 lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Dunes O-10-49194Keystone (Wolfcamp)Formentera Operations LLC2389K314KSep 2017 – Jul 2026

Oil, barrels lease total

Last 12 months 17,023 · prior 12 20,959(-19%)

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 10,536 · prior 12 8,024(+31%)

02K4K202420252026

Chain of custody

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

  1. 1Boyd & McWilliams Operating, LLCSep 2017 → Jul 2021
  2. 2Saddleback Exploration, LLCAug 2021 → Apr 2024
  3. 3Formentera Operations LLCMay 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
823991-98DrillBoyd & McWilliams Operating, LLCApr 27, 2017Mar 10, 2017Apr 7, 20178,400
823991-99DrillBoyd & McWilliams Operating, LLCMar 2, 2017Mar 10, 2017Apr 7, 20178,400

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 16, 2017Dunes O-10-49194Keystone (Wolfcamp)Formentera Operations LLCProducing8,209

Formation tops

As filed on W-2/G-1. Subsea from 3,052 ft elevation.Download CSV →

FormationMD ftSubsea
RustlerRUSTLER - POSSIBLE FLOW; POSSIBL1,0002,052
Yates2,630422
Colby-Queen3,555-503
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO3,940-888
Glorieta5,030-1,978
Clear ForkCLEARFORK5,360-2,308
Wichita-AlbanyWICHITA ALBANY6,521-3,469
Delaware——
Holt——
QueenQUEEN-SEVEN RIVERS——

Perforations

Perforated and open-hole intervals.

FromToType
8,12812,496Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,05012.25480 S
77,5638.625950 S
5.512,5988.625510 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
00Jan 31, 2018Oct 20, 2017—

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) and the University Lands library. 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/49533804, documented in the API reference.