WALTHER, B 1

Lease 3828 · 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

14,253 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	12
Apr 2026	34
Mar 2026	22
Feb 2026	45
Jan 2026	43
Dec 2025	15
Nov 2025	60
Oct 2025	30
Sep 2025	30
Aug 2025	13
Jul 2025	37
Jun 2025	36
May 2025	41
Apr 2025	43
Mar 2025	0
Feb 2025	-35
Jan 2025	41
Dec 2024	63
Nov 2024	31
Oct 2024	44
Sep 2024	32
Aug 2024	41
Jul 2024	26
Jun 2024	21
May 2024	17
Apr 2024	46
Mar 2024	49
Feb 2024	25
Jan 2024	2
Dec 2023	51
Nov 2023	51
Oct 2023	49
Sep 2023	51
Aug 2023	50
Jul 2023	41
Jun 2023	-11
May 2023	22
Apr 2023	48
Mar 2023	55
Feb 2023	53
Jan 2023	21
Dec 2022	39
Nov 2022	49
Oct 2022	64
Sep 2022	87
Aug 2022	70
Jul 2022	32
Jun 2022	24
May 2022	0
Apr 2022	28
Mar 2022	42
Feb 2022	49
Jan 2022	34
Dec 2021	49
Nov 2021	41
Oct 2021	0
Sep 2021	31
Aug 2021	39
Jul 2021	20
Jun 2021	57
May 2021	50
Apr 2021	31
Mar 2021	31
Feb 2021	31
Jan 2021	44
Dec 2020	17
Nov 2020	12
Oct 2020	59
Sep 2020	13
Aug 2020	51
Jul 2020	51
Jun 2020	57
May 2020	28
Apr 2020	51
Mar 2020	48
Feb 2020	45
Jan 2020	38
Dec 2019	48
Nov 2019	28
Oct 2019	44
Sep 2019	8
Aug 2019	23
Jul 2019	41
Jun 2019	45
May 2019	37
Apr 2019	52
Mar 2019	43
Feb 2019	24
Jan 2019	32
Dec 2018	18
Nov 2018	17
Oct 2018	0
Sep 2018	24
Aug 2018	0
Jul 2018	54
Jun 2018	32
May 2018	0
Apr 2018	0
Mar 2018	88
Feb 2018	21
Jan 2018	33
Dec 2017	49
Nov 2017	61
Oct 2017	36
Sep 2017	53
Aug 2017	58
Jul 2017	41
Jun 2017	3
May 2017	33
Apr 2017	46
Mar 2017	58
Feb 2017	15
Jan 2017	46
Dec 2016	48
Nov 2016	0
Oct 2016	39
Sep 2016	25
Aug 2016	37
Jul 2016	36
Jun 2016	34
May 2016	20
Apr 2016	36
Mar 2016	42
Feb 2016	50
Jan 2016	37
Dec 2015	14
Nov 2015	55
Oct 2015	53
Sep 2015	45
Aug 2015	86
Jul 2015	0
Jun 2015	0
May 2015	0
Apr 2015	0
Mar 2015	32
Feb 2015	16
Jan 2015	39
Dec 2014	31
Nov 2014	42
Oct 2014	33
Sep 2014	37
Aug 2014	50
Jul 2014	21
Jun 2014	49
May 2014	55
Apr 2014	45
Mar 2014	55
Feb 2014	7
Jan 2014	24
Dec 2013	49
Nov 2013	18
Oct 2013	63
Sep 2013	39
Aug 2013	39
Jul 2013	29
Jun 2013	46
May 2013	37
Apr 2013	46
Mar 2013	32
Feb 2013	45
Jan 2013	16
Dec 2012	99
Nov 2012	48
Oct 2012	23
Sep 2012	42
Aug 2012	55
Jul 2012	22
Jun 2012	38
May 2012	51
Apr 2012	54
Mar 2012	57
Feb 2012	52
Jan 2012	41
Dec 2011	59
Nov 2011	12
Oct 2011	37
Sep 2011	22
Aug 2011	61
Jul 2011	36
Jun 2011	30
May 2011	58
Apr 2011	53
Mar 2011	46
Feb 2011	0
Jan 2011	59
Dec 2010	26
Nov 2010	41
Oct 2010	55
Sep 2010	26
Aug 2010	33
Jul 2010	54
Jun 2010	51
May 2010	32
Apr 2010	51
Mar 2010	59
Feb 2010	24
Jan 2010	49
Dec 2009	40
Nov 2009	39
Oct 2009	68
Sep 2009	37
Aug 2009	54
Jul 2009	38
Jun 2009	78
May 2009	42
Apr 2009	65
Mar 2009	32
Feb 2009	37
Jan 2009	22
Dec 2008	42
Nov 2008	39
Oct 2008	61
Sep 2008	6
Aug 2008	40
Jul 2008	52
Jun 2008	22
May 2008	59
Apr 2008	40
Mar 2008	41
Feb 2008	55
Jan 2008	35
Dec 2007	32
Nov 2007	31
Oct 2007	34
Sep 2007	33
Aug 2007	52
Jul 2007	59
Jun 2007	47
May 2007	19
Apr 2007	44
Mar 2007	46
Feb 2007	26
Jan 2007	52
Dec 2006	27
Nov 2006	58
Oct 2006	30
Sep 2006	61
Aug 2006	21
Jul 2006	68
Jun 2006	78
May 2006	5
Apr 2006	47
Mar 2006	51
Feb 2006	50
Jan 2006	34
Dec 2005	42
Nov 2005	51
Oct 2005	28
Sep 2005	48
Aug 2005	54
Jul 2005	53
Jun 2005	53
May 2005	54
Apr 2005	46
Mar 2005	6
Feb 2005	25
Jan 2005	59
Dec 2004	51
Nov 2004	34
Oct 2004	54
Sep 2004	22
Aug 2004	44
Jul 2004	56
Jun 2004	24
May 2004	60
Apr 2004	59
Mar 2004	44
Feb 2004	58
Jan 2004	51
Dec 2003	29
Nov 2003	19
Oct 2003	55
Sep 2003	61
Aug 2003	42
Jul 2003	67
Jun 2003	53
May 2003	42
Apr 2003	55
Mar 2003	70
Feb 2003	29
Jan 2003	71
Dec 2002	56
Nov 2002	52
Oct 2002	39
Sep 2002	66
Aug 2002	62
Jul 2002	60
Jun 2002	77
May 2002	93
Apr 2002	56
Mar 2002	0
Feb 2002	92
Jan 2002	30
Dec 2001	0
Nov 2001	22
Oct 2001	55
Sep 2001	58
Aug 2001	51
Jul 2001	59
Jun 2001	7
May 2001	51
Apr 2001	46
Mar 2001	35
Feb 2001	3
Jan 2001	20
Dec 2000	32
Nov 2000	42
Oct 2000	57
Sep 2000	58
Aug 2000	13
Jul 2000	59
Jun 2000	48
May 2000	43
Apr 2000	38
Mar 2000	56
Feb 2000	60
Jan 2000	46
Dec 1999	46
Nov 1999	33
Oct 1999	40
Sep 1999	39
Aug 1999	61
Jul 1999	30
Jun 1999	57
May 1999	65
Apr 1999	67
Mar 1999	68
Feb 1999	62
Jan 1999	20
Dec 1998	48
Nov 1998	33
Oct 1998	70
Sep 1998	0
Aug 1998	0
Jul 1998	63
Jun 1998	46
May 1998	42
Apr 1998	90
Mar 1998	71
Feb 1998	61
Jan 1998	37
Dec 1997	41
Nov 1997	34
Oct 1997	39
Sep 1997	26
Aug 1997	64
Jul 1997	26
Jun 1997	37
May 1997	86
Apr 1997	36
Mar 1997	78
Feb 1997	98
Jan 1997	3

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
WALTHER, B W	1	Oil Well	MUSKEGON OPERATING COMPANY LLC	Producing	Jun 1944 — still

Michigan Department of Environment, Great Lakes, and Energy data, corpus built 2026-09-07. Lease 3828.