WIRSING 1-9

Lease 8435 · BAY County, Michigan · Williams field · Dundee

Oil1997–20251 well

Operator (latest)

CLARKSTON OIL CO

Field

Williams

Formation

Dundee

Field type (as filed)

First production

1997

Last production

2025

Operators

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

Operator	From	To
CLARKSTON OIL CO	Jan 2016	Dec 2025
CLARKSTON OIL CORP	Jan 1997	Dec 2015

Monthly oil production

348 months filed with the Michigan Department of Environment, Great Lakes, and Energy, Jan 1997 to Dec 2025. 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

12,452 bbl

Months filed

348

The Michigan Department of Environment, Great Lakes, and Energy records first production from this unit in 1987, 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)
Dec 2025	46
Nov 2025	23
Oct 2025	78
Sep 2025	29
Aug 2025	50
Jul 2025	75
Jun 2025	35
May 2025	50
Apr 2025	56
Mar 2025	57
Feb 2025	31
Jan 2025	0
Dec 2024	0
Nov 2024	0
Oct 2024	0
Sep 2024	0
Aug 2024	0
Jul 2024	0
Jun 2024	0
May 2024	0
Apr 2024	0
Mar 2024	0
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	15
Mar 2023	35
Feb 2023	23
Jan 2023	35
Dec 2022	10
Nov 2022	0
Oct 2022	0
Sep 2022	88
Aug 2022	45
Jul 2022	40
Jun 2022	33
May 2022	15
Apr 2022	28
Mar 2022	28
Feb 2022	5
Jan 2022	0
Dec 2021	24
Nov 2021	13
Oct 2021	32
Sep 2021	34
Aug 2021	34
Jul 2021	37
Jun 2021	38
May 2021	0
Apr 2021	0
Mar 2021	0
Feb 2021	0
Jan 2021	23
Dec 2020	0
Nov 2020	22
Oct 2020	37
Sep 2020	43
Aug 2020	45
Jul 2020	54
Jun 2020	35
May 2020	0
Apr 2020	0
Mar 2020	0
Feb 2020	0
Jan 2020	0
Dec 2019	0
Nov 2019	0
Oct 2019	0
Sep 2019	0
Aug 2019	0
Jul 2019	0
Jun 2019	0
May 2019	0
Apr 2019	0
Mar 2019	0
Feb 2019	0
Jan 2019	0
Dec 2018	0
Nov 2018	0
Oct 2018	0
Sep 2018	0
Aug 2018	0
Jul 2018	0
Jun 2018	0
May 2018	0
Apr 2018	0
Mar 2018	0
Feb 2018	0
Jan 2018	0
Dec 2017	32
Nov 2017	32
Oct 2017	32
Sep 2017	32
Aug 2017	32
Jul 2017	32
Jun 2017	32
May 2017	32
Apr 2017	32
Mar 2017	32
Feb 2017	32
Jan 2017	32
Dec 2016	31
Nov 2016	31
Oct 2016	31
Sep 2016	31
Aug 2016	31
Jul 2016	31
Jun 2016	31
May 2016	31
Apr 2016	31
Mar 2016	31
Feb 2016	30
Jan 2016	31
Dec 2015	22
Nov 2015	23
Oct 2015	22
Sep 2015	23
Aug 2015	22
Jul 2015	23
Jun 2015	22
May 2015	23
Apr 2015	22
Mar 2015	22
Feb 2015	22
Jan 2015	23
Dec 2014	31
Nov 2014	31
Oct 2014	31
Sep 2014	30
Aug 2014	31
Jul 2014	31
Jun 2014	30
May 2014	31
Apr 2014	31
Mar 2014	31
Feb 2014	30
Jan 2014	31
Dec 2013	30
Nov 2013	30
Oct 2013	30
Sep 2013	29
Aug 2013	30
Jul 2013	30
Jun 2013	29
May 2013	30
Apr 2013	30
Mar 2013	30
Feb 2013	29
Jan 2013	30
Dec 2012	40
Nov 2012	39
Oct 2012	40
Sep 2012	39
Aug 2012	40
Jul 2012	40
Jun 2012	40
May 2012	40
Apr 2012	39
Mar 2012	40
Feb 2012	39
Jan 2012	40
Dec 2011	33
Nov 2011	19
Oct 2011	42
Sep 2011	56
Aug 2011	66
Jul 2011	42
Jun 2011	56
May 2011	120
Apr 2011	38
Mar 2011	128
Feb 2011	28
Jan 2011	42
Dec 2010	90
Nov 2010	21
Oct 2010	123
Sep 2010	30
Aug 2010	168
Jul 2010	37
Jun 2010	41
May 2010	60
Apr 2010	100
Mar 2010	110
Feb 2010	42
Jan 2010	31
Dec 2009	126
Nov 2009	27
Oct 2009	63
Sep 2009	66
Aug 2009	47
Jul 2009	47
Jun 2009	41
May 2009	37
Apr 2009	53
Mar 2009	41
Feb 2009	38
Jan 2009	14
Dec 2008	26
Nov 2008	60
Oct 2008	45
Sep 2008	24
Aug 2008	80
Jul 2008	45
Jun 2008	42
May 2008	42
Apr 2008	59
Mar 2008	36
Feb 2008	37
Jan 2008	47
Dec 2007	33
Nov 2007	31
Oct 2007	38
Sep 2007	45
Aug 2007	24
Jul 2007	39
Jun 2007	35
May 2007	20
Apr 2007	96
Mar 2007	26
Feb 2007	48
Jan 2007	53
Dec 2006	27
Nov 2006	40
Oct 2006	48
Sep 2006	30
Aug 2006	43
Jul 2006	41
Jun 2006	49
May 2006	36
Apr 2006	60
Mar 2006	44
Feb 2006	43
Jan 2006	71
Dec 2005	0
Nov 2005	33
Oct 2005	83
Sep 2005	40
Aug 2005	17
Jul 2005	38
Jun 2005	40
May 2005	44
Apr 2005	58
Mar 2005	37
Feb 2005	36
Jan 2005	44
Dec 2004	35
Nov 2004	26
Oct 2004	31
Sep 2004	51
Aug 2004	35
Jul 2004	38
Jun 2004	40
May 2004	49
Apr 2004	59
Mar 2004	41
Feb 2004	34
Jan 2004	34
Dec 2003	28
Nov 2003	41
Oct 2003	45
Sep 2003	51
Aug 2003	51
Jul 2003	29
Jun 2003	39
May 2003	41
Apr 2003	46
Mar 2003	35
Feb 2003	42
Jan 2003	55
Dec 2002	93
Nov 2002	0
Oct 2002	45
Sep 2002	43
Aug 2002	40
Jul 2002	54
Jun 2002	64
May 2002	95
Apr 2002	0
Mar 2002	0
Feb 2002	58
Jan 2002	42
Dec 2001	52
Nov 2001	81
Oct 2001	0
Sep 2001	69
Aug 2001	118
Jul 2001	0
Jun 2001	176
May 2001	0
Apr 2001	0
Mar 2001	0
Feb 2001	0
Jan 2001	55
Dec 2000	36
Nov 2000	45
Oct 2000	34
Sep 2000	49
Aug 2000	54
Jul 2000	87
Jun 2000	60
May 2000	58
Apr 2000	38
Mar 2000	46
Feb 2000	13
Jan 2000	51
Dec 1999	65
Nov 1999	32
Oct 1999	71
Sep 1999	43
Aug 1999	133
Jul 1999	70
Jun 1999	82
May 1999	59
Apr 1999	34
Mar 1999	36
Feb 1999	32
Jan 1999	29
Dec 1998	56
Nov 1998	42
Oct 1998	41
Sep 1998	80
Aug 1998	57
Jul 1998	0
Jun 1998	0
May 1998	60
Apr 1998	61
Mar 1998	58
Feb 1998	68
Jan 1998	89
Dec 1997	63
Nov 1997	10
Oct 1997	12
Sep 1997	62
Aug 1997	152
Jul 1997	72
Jun 1997	50
May 1997	58
Apr 1997	67
Mar 1997	60
Feb 1997	70
Jan 1997	63

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
WIRSING	1-9	Oil Well	CLARKSTON OIL CO	Shut_In	Jan 1987 — still

Michigan Department of Environment, Great Lakes, and Energy data, corpus built 2026-09-07. Lease 8435.