TEXAS · WELLS · SCHLEICHER COUNTY · API 42-413-32664 · DISTRICT 6E

Marigliano #1604

Y

Schleicher County · Sawyer (Canyon) field · Producing  · Vertical

Marigliano #1604 (API 42-413-32664) is a well in Schleicher County operated by Upp Operating LLC, completed October 1, 2010 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued June 21, 2010, permitted to 8,350 ft.

It was permitted by Highmount Expl & Prod Texas LLC and has since transferred to Upp Operating LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Base Cretaceous (marker), Wolfcamp, Canyon, Strawn.

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

Operator of record

Upp Operating LLC

Permitted by Highmount Expl & Prod Texas LLC; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Mar 6, 2026
Permits on file
33
Phone
(713) 495-5300

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleUpp Operating LLC
Production reportsUpp Operating, LLCthrough Apr 2026
Latest permitHighmount Expl & Prod Texas LLCJun 21, 2010

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

8,350
total depth, ft
2
permits on file
Jun 21, 2010
last permit issued
Oct 1, 2010
completed
0
cumulative oil, bbl
676K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 1, 2010
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Marigliano G-1-260093Kelley (Ellenburger)Upp Operating, LLC100Oct 2010 – Jul 2026
Marigliano G-9-260092Sawyer (Canyon)Upp Operating, LLC10676KSep 2010 – Jul 2026

Gas, mcf lease total

Last 12 months 10,200 · prior 12 11,407(-11%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Highmount Expl & Prod Texas LLCSep 2010 → Sep 2014
  2. 2Enervest Operating, L.L.C.Oct 2014 → Mar 2019
  3. 3Upp Operating, LLCApr 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
697728-98DrillHighmount Expl & Prod Texas LLCJul 14, 2010Jun 21, 2010Sep 1, 20109,450
697728-99DrillHighmount Expl & Prod Texas LLCJun 16, 2010Jun 21, 2010Aug 30, 20109,450

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 1, 2010Marigliano G-9-260092Sawyer (Canyon)Upp Operating LLCProducing8,350
Oct 1, 2010Marigliano G-1-260093Kelley (Ellenburger)Upp Operating LLCSWR-10-Well · shut in Oct 1, 20108,350

Formation tops

As filed on W-2/G-1. Subsea from 2,451 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE CRETACEOUS1,2921,159
Wolfcamp4,682-2,231
Canyon6,822-4,371
Strawn8,110-5,659

Perforations

Perforated and open-hole intervals.

FromToType
7,3568,034Perforated
8,1208,290Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,01011364 S
4.58,3217.875520 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
00Jul 8, 2011Jan 10, 2011Yes
00Jul 1, 2011——

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/41332664, documented in the API reference.