WALTHER-HEBERT 1

Lease 3745 · BAY County, Michigan · Essexville field · Dundee

Oil1997–20261 well

Operator (latest)

MUSKEGON OPERATING COMPANY LLC

Field

Essexville

Formation

Dundee

Field type (as filed)

First production

1997

Last production

2026

Operators

3 runs on this lease, as filed month by month.

Operator	From	To
MUSKEGON OPERATING COMPANY LLC	Apr 2026	May 2026
MILLER ENERGY COMPANY II LLC	Jan 2015	Mar 2026
SUMMIT ESSEXVILLE INC	Jan 1997	Dec 2014

Monthly oil production

353 months filed with the Michigan Department of Environment, Great Lakes, and Energy, Jan 1997 to May 2026. Volumes are bbl at lease level — a lease can cover many wells, so this is not a well's output.

Total over the months shown

13,371 bbl

Months filed

353

The Michigan Department of Environment, Great Lakes, and Energy records first production from this unit in 1944, and the monthly series below begins in Jan 1997. The total above covers the months shown, not the life of the unit.

Month	Oil (bbl)
May 2026	30
Apr 2026	4
Mar 2026	110
Feb 2026	64
Jan 2026	24
Dec 2025	66
Nov 2025	66
Oct 2025	72
Sep 2025	95
Aug 2025	137
Jul 2025	193
Jun 2025	167
May 2025	133
Apr 2025	0
Mar 2025	5
Feb 2025	109
Jan 2025	0
Dec 2024	0
Nov 2024	-1
Oct 2024	-9
Sep 2024	0
Aug 2024	121
Jul 2024	0
Jun 2024	0
May 2024	-2
Apr 2024	0
Mar 2024	24
Feb 2024	0
Jan 2024	0
Dec 2023	0
Nov 2023	0
Oct 2023	0
Sep 2023	0
Aug 2023	0
Jul 2023	0
Jun 2023	0
May 2023	0
Apr 2023	0
Mar 2023	0
Feb 2023	0
Jan 2023	0
Dec 2022	0
Nov 2022	2
Oct 2022	0
Sep 2022	0
Aug 2022	7
Jul 2022	60
Jun 2022	91
May 2022	62
Apr 2022	0
Mar 2022	54
Feb 2022	12
Jan 2022	27
Dec 2021	35
Nov 2021	24
Oct 2021	22
Sep 2021	24
Aug 2021	25
Jul 2021	25
Jun 2021	25
May 2021	27
Apr 2021	22
Mar 2021	15
Feb 2021	18
Jan 2021	25
Dec 2020	35
Nov 2020	42
Oct 2020	18
Sep 2020	20
Aug 2020	20
Jul 2020	25
Jun 2020	27
May 2020	25
Apr 2020	29
Mar 2020	27
Feb 2020	22
Jan 2020	22
Dec 2019	29
Nov 2019	22
Oct 2019	27
Sep 2019	42
Aug 2019	22
Jul 2019	40
Jun 2019	35
May 2019	42
Apr 2019	39
Mar 2019	47
Feb 2019	29
Jan 2019	23
Dec 2018	33
Nov 2018	22
Oct 2018	22
Sep 2018	0
Aug 2018	13
Jul 2018	52
Jun 2018	64
May 2018	17
Apr 2018	0
Mar 2018	25
Feb 2018	12
Jan 2018	32
Dec 2017	25
Nov 2017	49
Oct 2017	36
Sep 2017	37
Aug 2017	39
Jul 2017	47
Jun 2017	42
May 2017	37
Apr 2017	39
Mar 2017	40
Feb 2017	13
Jan 2017	35
Dec 2016	39
Nov 2016	134
Oct 2016	37
Sep 2016	34
Aug 2016	40
Jul 2016	49
Jun 2016	39
May 2016	42
Apr 2016	39
Mar 2016	44
Feb 2016	7
Jan 2016	34
Dec 2015	32
Nov 2015	17
Oct 2015	35
Sep 2015	26
Aug 2015	27
Jul 2015	25
Jun 2015	40
May 2015	41
Apr 2015	44
Mar 2015	35
Feb 2015	44
Jan 2015	40
Dec 2014	36
Nov 2014	41
Oct 2014	30
Sep 2014	40
Aug 2014	44
Jul 2014	45
Jun 2014	32
May 2014	10
Apr 2014	42
Mar 2014	49
Feb 2014	43
Jan 2014	49
Dec 2013	5
Nov 2013	42
Oct 2013	35
Sep 2013	40
Aug 2013	45
Jul 2013	54
Jun 2013	20
May 2013	44
Apr 2013	46
Mar 2013	45
Feb 2013	40
Jan 2013	50
Dec 2012	40
Nov 2012	61
Oct 2012	44
Sep 2012	44
Aug 2012	22
Jul 2012	62
Jun 2012	62
May 2012	55
Apr 2012	60
Mar 2012	57
Feb 2012	32
Jan 2012	30
Dec 2011	32
Nov 2011	32
Oct 2011	30
Sep 2011	8
Aug 2011	37
Jul 2011	35
Jun 2011	29
May 2011	35
Apr 2011	30
Mar 2011	34
Feb 2011	30
Jan 2011	32
Dec 2010	30
Nov 2010	11
Oct 2010	75
Sep 2010	28
Aug 2010	18
Jul 2010	15
Jun 2010	31
May 2010	15
Apr 2010	42
Mar 2010	44
Feb 2010	38
Jan 2010	40
Dec 2009	40
Nov 2009	37
Oct 2009	38
Sep 2009	42
Aug 2009	11
Jul 2009	46
Jun 2009	40
May 2009	43
Apr 2009	41
Mar 2009	47
Feb 2009	38
Jan 2009	50
Dec 2008	30
Nov 2008	15
Oct 2008	41
Sep 2008	42
Aug 2008	51
Jul 2008	48
Jun 2008	42
May 2008	20
Apr 2008	35
Mar 2008	47
Feb 2008	43
Jan 2008	43
Dec 2007	42
Nov 2007	39
Oct 2007	43
Sep 2007	38
Aug 2007	28
Jul 2007	28
Jun 2007	38
May 2007	42
Apr 2007	44
Mar 2007	47
Feb 2007	40
Jan 2007	45
Dec 2006	42
Nov 2006	10
Oct 2006	43
Sep 2006	44
Aug 2006	41
Jul 2006	38
Jun 2006	42
May 2006	48
Apr 2006	42
Mar 2006	42
Feb 2006	8
Jan 2006	47
Dec 2005	45
Nov 2005	43
Oct 2005	44
Sep 2005	45
Aug 2005	51
Jul 2005	30
Jun 2005	13
May 2005	33
Apr 2005	47
Mar 2005	53
Feb 2005	33
Jan 2005	39
Dec 2004	45
Nov 2004	44
Oct 2004	45
Sep 2004	47
Aug 2004	68
Jul 2004	50
Jun 2004	45
May 2004	15
Apr 2004	26
Mar 2004	45
Feb 2004	40
Jan 2004	52
Dec 2003	54
Nov 2003	0
Oct 2003	58
Sep 2003	53
Aug 2003	20
Jul 2003	62
Jun 2003	80
May 2003	47
Apr 2003	47
Mar 2003	47
Feb 2003	38
Jan 2003	48
Dec 2002	25
Nov 2002	28
Oct 2002	42
Sep 2002	43
Aug 2002	43
Jul 2002	47
Jun 2002	40
May 2002	48
Apr 2002	45
Mar 2002	207
Feb 2002	40
Jan 2002	54
Dec 2001	18
Nov 2001	36
Oct 2001	43
Sep 2001	42
Aug 2001	36
Jul 2001	15
Jun 2001	43
May 2001	42
Apr 2001	42
Mar 2001	57
Feb 2001	43
Jan 2001	62
Dec 2000	42
Nov 2000	43
Oct 2000	14
Sep 2000	43
Aug 2000	45
Jul 2000	42
Jun 2000	45
May 2000	22
Apr 2000	42
Mar 2000	36
Feb 2000	61
Jan 2000	43
Dec 1999	43
Nov 1999	19
Oct 1999	45
Sep 1999	48
Aug 1999	42
Jul 1999	43
Jun 1999	43
May 1999	28
Apr 1999	47
Mar 1999	47
Feb 1999	45
Jan 1999	50
Dec 1998	43
Nov 1998	42
Oct 1998	60
Sep 1998	45
Aug 1998	151
Jul 1998	46
Jun 1998	47
May 1998	44
Apr 1998	29
Mar 1998	53
Feb 1998	45
Jan 1998	53
Dec 1997	21
Nov 1997	60
Oct 1997	50
Sep 1997	46
Aug 1997	43
Jul 1997	41
Jun 1997	50
May 1997	43
Apr 1997	40
Mar 1997	43
Feb 1997	27
Jan 1997	86

Lease-level volumes as filed with the Michigan Department of Environment, Great Lakes, and Energy.

Wells on this lease

1 well the state's well register assigns to this lease. Every one has a page. Michigan files the dates a well entered and left the unit, and a unit's members include injection, observation and dry holes — a member is not a producer.

Well	No.	Type	Operator	Status	In the unit
HEBERT & WALTHER	1	Oil Well	MUSKEGON OPERATING COMPANY LLC	Producing	Sep 1944 — still

Michigan Department of Environment, Great Lakes, and Energy data, corpus built 2026-09-07. Lease 3745.