WELL · 42-483-33970 · DISTRICT 10

Marilyn 5-5 #1HA

Y

Wheeler County · Stiles Ranch (Granite Wash Cons) field · Producing  · Horizontal

Marilyn 5-5 #1HA (API 42-483-33970) is a horizontal well in Wheeler County operated by Formentera Operations LLC, completed July 26, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 24, 2019, permitted to 14,000 ft.

It was permitted by Tapstone Energy, LLC and has since transferred to Formentera Operations LLC on the wellbore schedule.

Completion filings report 9 formation tops, including Brown Dolomite, Pennsylvanian, Douglas, Tonkawa.

No lease production has been reported under this well’s leases.

Operator of record

Formentera Operations LLC

Permitted by Tapstone Energy, LLC; the EWA schedule now lists a different operator.

Austin, TX · P-5 Y, filed May 4, 2026 · 90 permits on file · (844) 509-5768

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFormentera Operations LLC
Production reportsFormentera Operations LLCthrough Apr 2026
Latest permitTapstone Energy, LLCApr 24, 2019

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

14,000
total depth, ft
1
permits on file
Apr 24, 2019
last permit issued
Jul 26, 2019
completed
0
cumulative oil, bbl
1.43M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 26, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

35.425436, -100.078803

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Wheeler County.

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Marilyn 5-5 G-14-288198Stiles Ranch (Granite Wash Cons)Formentera Operations LLC101.43MJul 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 79,098 · prior 12 87,263(-9%)

05K10K202420252026

Chain of custody

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

  1. 1Tapstone Energy, LLCJul 2019 → May 2021
  2. 2Formentera Operations LLCJun 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
852196-99DrillTapstone Energy, LLCApr 16, 2019Apr 24, 2019May 3, 201914,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-14-288198————

Formation tops

As filed on W-2/G-1. Subsea from 2,279 ft elevation.Download CSV →

FormationMD ftSubsea
Brown DolomiteBROWN DOLOMITE (UPPER) - PANHAND2,350-71
Brown DolomiteBROWN DOLOMITE (LOWER) - PRESSUR3,990-1,711
PennsylvanianPENNSYLVANIAN SHALE9,084-6,805
Douglas9,705-7,426
Tonkawa9,926-7,647
Missouri10,549-8,270
Missouri Basal10,928-8,649
Kansas City11,199-8,920
Granite Washe - Panhandle Field——
Granite Washes——

Perforations

Perforated and open-hole intervals.

FromToType
12,64218,381Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
269720—
17.537513.375540 S
12.256,7359.8751,750 S
8.7518,5365.51,585 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
00Mar 9, 2020Oct 30, 2019Yes

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.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Stiles 142-483-33918

2.3 KM · Tapstone Energy, LLC · Section with this well →

Blaine - Pressured (Artisian) AN3901,956
Glorieta9871,359
Wichita-Albany1,366980
Brown Dolomite2,3388
Brown Dolomite3,969-1,623
Pennsylvanian9,110-6,764
Douglas9,660-7,314
Tonkawa9,993-7,647

10 TOPS · FIRST 8

Britt-Rathjen42-483-33936

2.7 KM · 4P Energy Texas, LLC · Section with this well →

Brown Dolomite4,618
Pennsylvanian6,814
Douglas9,123
Tonkawa9,972
Granite Washe - Panhandle Field—
Granite Washes—
Blaine - Pressured (Artisian) AN—
Wichita-Albany—

10 TOPS · FIRST 8

Bass42-483-33978

2.9 KM · Sanguine Gas Exploration, LLC · Section with this well →

Brown Dolomite3,844-1,658
Douglas9,292-7,106
Wichita-Albany—
Blaine - Pressured (Artisian) AN—
Brown Dolomite—
Glorieta—
Granite Washe - Panhandle Field—
Granite Washes—

10 TOPS · FIRST 8

Stiles 6842-483-33674

3.2 KM · Tapstone Energy, LLC · Section with this well →

Cleveland11,914-9,680
Upper Caldwell12,626-10,392
Caldwell12,754-10,520

Stiles 6842-483-33794

3.4 KM · Tapstone Energy, LLC · Section with this well →

Caldwell12,776-10,524
Cherokee12,906-10,654
Grws A12,974-10,722
Grws B13,512-11,260

Coltharp42-483-31269

3.5 KM · Sanguine Gas Exploration, LLC · Section with this well →

Base Heebner8,920-6,750
Douglas9,140-6,970
Tonkawa9,700-7,530
Deese11,650-9,480
Granite Wash12,110-9,940
Cherokee12,110-9,940
Carbonite Wash14,940-12,770
Atoka16,040-13,870

9 TOPS · FIRST 8

E. R. Blocker 60442-483-33963

3.6 KM · 4P Energy Texas, LLC · Section with this well →

Brown Dolomite4,522
Pennsylvanian6,375
Douglas8,709
Tonkawa9,509
Granite Washe - Panhandle Field—
Granite Washes—
Brown Dolomite—
Glorieta—

10 TOPS · FIRST 8

E. R. Blocker 40442-483-33961

3.6 KM · 4P Energy Texas, LLC · Section with this well →

Kansas City10,634
Oswego—
Chert—
Cherokee Washes—
Atoka—
Morrow—
Missouri Basal—
Des Moines—

10 TOPS · FIRST 8

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/48333970, documented in the API reference.