Petrora

WELL · 42-435-37219 · DISTRICT 7

Mayfield 41 #15

N

Sutton County  · Vertical

Mayfield 41 #15 (API 42-435-37219) is a permitted well in Sutton County filed by Enervest Operating, L.L.C.; no completion report is on file yet.

The RRC has issued 3 drilling permits (amended once) between 2004 and 2017, permitted to 8,850 ft.

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

Operator of record

Enervest Operating, L.L.C.

Houston, TX · P-5 Y, filed Oct 4, 2025 · 1,249 permits on file · (713) 659-3500

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsUpp Operating, LLCthrough Apr 2026
Latest permitEnervest Operating, L.L.C.Jun 16, 2017
8,850
total depth, ft
4
permits on file
Jun 16, 2017
last permit issued
—
completed
0
cumulative oil, bbl
362K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2005 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

Surface location

30.546931, -100.804344

OpenStreetMap → ·  Google Maps →

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

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mayfield 41 G-9-211737Sawyer (Canyon)Upp Operating, LLC10226KMar 2005 – Jul 2026
Mayfield 41 G-9-280445Fawcett (Wolfcamp)Upp Operating, LLC10136KJul 2014 – Jul 2026
Mayfield 41 G-9-211739Sawyer (Strawn, North)Enervest Operating, L.L.C.100Mar 2005 – Nov 2015

Gas, mcf lease total

Last 12 months 9,057 · prior 12 10,082(-10%)

05001K202420252026

Chain of custody

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

  1. 1Dominion Oklahoma Texas E&P, IncMar 2005 → Dec 2007
  2. 2Highmount Expl & Prod Texas LLCJan 2008 → Jan 2011
  3. 3Enervest Operating, L.L.C.Jul 2014 → Mar 2019
  4. 4Upp Operating, LLCApr 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
827475-99RecompletionEnervest Operating, L.L.C.Jun 5, 2017Jun 16, 2017—8,850
707192-98RecompletionEnervest Operating, L.L.C.Aug 11, 2016Dec 20, 2010Jan 31, 20113,500
707192-99RecompletionHighmount Expl & Prod Texas LLCDec 16, 2010Dec 20, 2010Jan 31, 20113,500
554883-99DrillDominion Oklahoma Texas E&P, IncDec 15, 2004Dec 15, 2004Jan 26, 20058,850

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-9-211737————
—— G-9-211739————
—— G-9-280445————

Formation tops

As filed on W-2/G-1. Subsea from 2,288 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE CRETACEOUS8921,396
Wolfcamp3,233-945
Wolfcamp3,450-1,162
Canyon6,264-3,976
Strawn7,886-5,598

Perforations

Perforated and open-hole intervals.

FromToType
3,2335,563Perforated
6,2707,379Perforated
7,9708,072Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37525917.5450 S
8.6252,42211950 S
4.58,3107.51,200 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
00Aug 3, 2016Dec 3, 2015—
00Dec 20, 2005Apr 13, 2005Yes
00Oct 26, 2005——
00Oct 25, 2005——

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 →

Hill-Fawcett, Randee 'B'42-435-37481

3.0 KM · Upp Operating, LLC · Section with this well →

Cretaceous8331,326
Base Cretaceous (marker)8331,326
Leonard1,522637
Wolfcamp3,308-1,149
Canyon6,142-3,983
Pennsylvanian—
Strawn—

Bloodworth 14042-435-35259

4.2 KM · Highmount Expl & Prod Texas LLC · Section with this well →

Base Cretaceous (marker)8021,401
Wolfcamp3,416-1,213
Canyon6,047-3,844
Strawn7,715-5,512

Mayer 4742-435-35159

4.8 KM · Upp Operating, LLC · Section with this well →

Base Cretaceous (marker)8901,424
Wolfcamp3,590-1,276
Canyon6,291-3,977
Strawn7,720-5,406

Hill Mayer Minnies H. A42-435-34520

5.4 KM · Upp Operating, LLC · Section with this well →

Base Cretaceous (marker)7571,432
Sawyer (Leonard)1,510679
Wolfcamp3,523-1,334
Canyon6,290-4,101
Strawn7,734-5,545
Pennsylvanian—

Sawyer-Jones42-435-37573

9.3 KM · Upp Operating, LLC · Section with this well →

Base Cretaceous (marker)7301,327
Wolfcamp2,756-699
Canyon5,635-3,578

Morris Brothers E42-435-34375

11.9 KM · Enervest Operating, L.L.C. · Section with this well →

Base Cretaceous (marker)8161,337
Wolfcamp2,994-841
Canyon6,901-4,748
Strawn8,596-6,443

Fennec42-435-39436

12.4 KM · Upp Operating, LLC · Section with this well →

Leonard1,438686
Wolfcamp2,843-719
Canyon6,101-3,977
Strawn8,644-6,520
Pennsylvanian—

Kirby 142-435-35687

12.8 KM · Upp Operating, LLC · Section with this well →

Base Cretaceous (marker)8651,472
Cretaceous8651,472
Base Cretaceous (marker)8651,472
Leonard2,064273
Sawyer (Leonard)2,064273
Wolfcamp3,750-1,413
Canyon6,220-3,883

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

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