WELL · 42-435-35159 · DISTRICT 7

Mayer 47 #9

Mayer 47 #9 (API 42-435-35159) is a permitted well in Sutton County filed by Upp Operating, LLC; no completion report is on file yet.

The RRC has issued 2 drilling permits between 2000 and 2019, permitted to 8,450 ft.

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

Operator of record

Upp Operating, LLC

Houston, TX · P-5 Y, filed Dec 4, 2025 · 33 permits on file · (817) 389-2729

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Upp Operating, LLCthrough Apr 2026
Latest permit	Upp Operating, LLCNov 6, 2019

8,450: total depth, ft
2: permits on file
Nov 6, 2019: last permit issued
—: completed
0: cumulative oil, bbl
720K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2000 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: —
Shut in: —
Plugged: —

Surface location

30.587738, -100.786860

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

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Mayer 47 G-9-178452	Sawyer (Strawn, North)	Upp Operating, LLC	1	0	720K	Jul 2000 – Jul 2026

Gas, mcf lease total

Last 12 months 10,944 · prior 12 5,707(+92%)

Chain of custody

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

1Dreyfus, Louis Natural Gas CorpJul 2000 → Nov 2001
2Dominion Oklahoma Texas E&P, IncDec 2001 → Dec 2007
3Highmount Expl & Prod Texas LLCJan 2008 → Sep 2014
4Enervest Operating, L.L.C.Oct 2014 → Mar 2019
5Upp Operating, LLCApr 2019 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
858225-99	Recompletion	Upp Operating, LLC	Oct 21, 2019	Nov 6, 2019	—	8,450
496373-99	Drill	Dreyfus, Louis Natural Gas Corp	Jun 20, 2000	Jun 20, 2000	Jun 24, 2000	8,450

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-9-178452	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 2,314 ft elevation.Download CSV →

Formation	MD ft	Subsea
Base Cretaceous (marker)BASE CRETACEOUS	890	1,424
Wolfcamp	3,590	-1,276
Canyon	6,291	-3,977
Strawn	7,720	-5,406

Perforations

Perforated and open-hole intervals.

From	To	Type
7,980	8,028	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
8.625	1,154	11	240 S
4.5	8,422	7.875	650 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Oct 17, 2000	Aug 31, 2000	Yes
00	Sep 12, 2000	—	—

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.

Wellbore filings for 42-435-35159 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-435-35159 → scanned completion filings

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 Mayer Minnies H. A42-435-34520

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

Base Cretaceous (marker)	757	1,432
Sawyer (Leonard)	1,510	679
Wolfcamp	3,523	-1,334
Canyon	6,290	-4,101
Strawn	7,734	-5,545
Pennsylvanian	—

Bloodworth 14042-435-35259

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

Base Cretaceous (marker)	802	1,401
Wolfcamp	3,416	-1,213
Canyon	6,047	-3,844
Strawn	7,715	-5,512

Mayfield 4142-435-37219

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

Base Cretaceous (marker)	892	1,396
Wolfcamp	3,233	-945
Canyon	6,264	-3,976
Strawn	7,886	-5,598

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

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

Base Cretaceous (marker)	833	1,326
Cretaceous	833	1,326
Leonard	1,522	637
Wolfcamp	3,308	-1,149
Canyon	6,142	-3,983
Pennsylvanian	—
Strawn	—

Kirby 142-435-35687

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

Base Cretaceous (marker)	865	1,472
Base Cretaceous (marker)	865	1,472
Cretaceous	865	1,472
Sawyer (Leonard)	2,064	273
Leonard	2,064	273
Wolfcamp	3,750	-1,413
Canyon	6,220	-3,883

Deberry A42-435-36225

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

Cretaceous	815	1,509
Base Cretaceous (marker)	815	1,509
Base Cretaceous (marker)	815	1,509
Leonard	1,050	1,274
Sawyer (Leonard)	1,656	668
Sawyer (Leoonard)	1,656	668
Wolfcamp	3,300	-976
Canyon	5,400	-3,076

10 TOPS · FIRST 8

Sawyer-Jones42-435-37573

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

Base Cretaceous (marker)	730	1,327
Wolfcamp	2,756	-699
Canyon	5,635	-3,578

Davis 'A'42-435-36343

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

Base Cretaceous (marker)	680	1,486
Wolfcamp	2,966	-800
Canyon	5,276	-3,110

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/43535159, documented in the API reference.