TEXAS · WELLS · SUTTON COUNTY · MAYER LEASE · API 42-435-35382 · DISTRICT 6E

Mayer #41

On schedule

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

Fields on the latest permit · any of 2
Sawyer (Canyon) · Sawyer (Strawn, North)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Mayer #41 (API 42-435-35382) is a well in Sutton County operated by Upp Operating LLC, completed April 22, 2001 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued February 16, 2001, permitted to 8,500 ft.

It was permitted by Dreyfus, Louis Natural Gas Corp 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.

Its lease has reported 22 barrels of oil and 250K mcf of gas since April 2001, last reporting volume in April 2026.

Operator of record

Upp Operating LLC

Permitted by Dreyfus, Louis Natural Gas Corp; 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 permitDreyfus, Louis Natural Gas CorpFeb 16, 2001

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

8,500
total depth, ft
1
permits on file
Feb 16, 2001
last permit issued
Apr 22, 2001
completed
22
cumulative oil, bbl
250K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2001 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 22, 2001
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

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
Mayer G-9-182562Sawyer (Canyon)Upp Operating, LLC122250KApr 2001 – Apr 2026

Gas, mcf lease total

Last 12 months 1,853 · prior 12 1,737(+7%)

0100200300202420252026

Wells named Mayer

Upp Operating LLC's other wells filed under this lease name in Sutton County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Dreyfus, Louis Natural Gas CorpApr 2001 → Nov 2001
  2. 2Dominion Oklahoma Texas E&P, IncDec 2001 → Dec 2007
  3. 3Highmount Expl & Prod Texas LLCJan 2008 → Sep 2014
  4. 4Enervest Operating, L.L.C.Oct 2014 → Mar 2019
  5. 5Upp Operating, LLCApr 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
505475-99DrillDreyfus, Louis Natural Gas CorpFeb 16, 2001Feb 16, 2001Apr 2, 20018,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 22, 2001Mayer G-9-182562Sawyer (Canyon)Upp Operating LLCProducing8,500

Formation tops

As filed on W-2/G-1. Subsea from 2,275 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE CRETACEOUS8301,445
Wolfcamp3,601-1,326
Canyon6,475-4,200
Strawn7,933-5,658

Perforations

Perforated and open-hole intervals.

FromToType
7,1927,202Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,21311287 S
4.57,4557.875400 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Sep 5, 2001May 8, 2001Yes
00Jun 5, 2001——

Well logs

The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.

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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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/43535382, documented in the API reference.