WOLF UNIT

Lease 18575 · OTSEGO County, Michigan · Otsego County - Antrim field

Gas soldWater2004–20191 well

Operator (latest)

RIVIERA OPERATING LLC

Field

Otsego County - Antrim

Field type (as filed)

First production

2004

Last production

2019

Operators

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

Operator	From	To
RIVIERA OPERATING LLC	Aug 2010	Jul 2019
HIGHMOUNT MIDWEST ENERGY LLC	Jan 2008	Jul 2010
QUICKSILVER RESOURCES INC	Mar 2005	Dec 2007
MERCURY EXPLORATION CO	Mar 2004	Mar 2004

Monthly gas sold production

174 months filed with the Michigan Department of Environment, Great Lakes, and Energy, Mar 2004 to Jul 2019. Volumes are MCF at lease level — a lease can cover many wells, so this is not a well's output. This is gas SOLD, which is what left the unit. Michigan files no produced-gas volume, so the two are not the same number and this page does not present one as the other.

Total over the months shown

108,581 MCF

Months filed

174

The Michigan Department of Environment, Great Lakes, and Energy records first production from this unit in 1993, and the monthly series below begins in Mar 2004. The total above covers the months shown, not the life of the unit.

Month	Gas sold (MCF)
Jul 2019	177
Jun 2019	233
May 2019	437
Apr 2019	429
Mar 2019	456
Feb 2019	440
Jan 2019	541
Dec 2018	534
Nov 2018	557
Oct 2018	575
Sep 2018	502
Aug 2018	427
Jul 2018	417
Jun 2018	397
May 2018	432
Apr 2018	401
Mar 2018	450
Feb 2018	428
Jan 2018	508
Dec 2017	532
Nov 2017	500
Oct 2017	517
Sep 2017	344
Aug 2017	496
Jul 2017	515
Jun 2017	495
May 2017	515
Apr 2017	504
Mar 2017	531
Feb 2017	428
Jan 2017	538
Dec 2016	537
Nov 2016	509
Oct 2016	525
Sep 2016	518
Aug 2016	545
Jul 2016	497
Jun 2016	540
May 2016	538
Apr 2016	524
Mar 2016	582
Feb 2016	553
Jan 2016	623
Dec 2015	641
Nov 2015	636
Oct 2015	647
Sep 2015	610
Aug 2015	648
Jul 2015	646
Jun 2015	593
May 2015	592
Apr 2015	568
Mar 2015	665
Feb 2015	562
Jan 2015	623
Dec 2014	599
Nov 2014	577
Oct 2014	607
Sep 2014	600
Aug 2014	625
Jul 2014	733
Jun 2014	584
May 2014	570
Apr 2014	529
Mar 2014	621
Feb 2014	570
Jan 2014	664
Dec 2013	704
Nov 2013	604
Oct 2013	708
Sep 2013	663
Aug 2013	735
Jul 2013	727
Jun 2013	638
May 2013	665
Apr 2013	543
Mar 2013	690
Feb 2013	648
Jan 2013	750
Dec 2012	725
Nov 2012	719
Oct 2012	737
Sep 2012	725
Aug 2012	736
Jul 2012	751
Jun 2012	666
May 2012	626
Apr 2012	647
Mar 2012	698
Feb 2012	709
Jan 2012	780
Dec 2011	783
Nov 2011	732
Oct 2011	715
Sep 2011	675
Aug 2011	653
Jul 2011	691
Jun 2011	620
May 2011	641
Apr 2011	658
Mar 2011	681
Feb 2011	665
Jan 2011	755
Dec 2010	746
Nov 2010	675
Oct 2010	541
Sep 2010	507
Aug 2010	543
Jul 2010	542
Jun 2010	495
May 2010	524
Apr 2010	516
Mar 2010	541
Feb 2010	503
Jan 2010	546
Dec 2009	541
Nov 2009	519
Oct 2009	581
Sep 2009	583
Aug 2009	608
Jul 2009	620
Jun 2009	607
May 2009	619
Apr 2009	594
Mar 2009	621
Feb 2009	600
Jan 2009	695
Dec 2008	709
Nov 2008	684
Oct 2008	604
Sep 2008	662
Aug 2008	758
Jul 2008	832
Jun 2008	807
May 2008	839
Apr 2008	838
Mar 2008	945
Feb 2008	944
Jan 2008	888
Dec 2007	849
Nov 2007	818
Oct 2007	880
Sep 2007	879
Aug 2007	886
Jul 2007	862
Jun 2007	702
May 2007	621
Apr 2007	614
Mar 2007	638
Feb 2007	568
Jan 2007	655
Dec 2006	641
Nov 2006	675
Oct 2006	677
Sep 2006	695
Aug 2006	630
Jul 2006	621
Jun 2006	617
May 2006	641
Apr 2006	618
Mar 2006	680
Feb 2006	612
Jan 2006	688
Dec 2005	725
Nov 2005	718
Oct 2005	757
Sep 2005	768
Aug 2005	811
Jul 2005	828
Jun 2005	827
May 2005	900
Apr 2005	885
Mar 2005	898
Mar 2004	0

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

Monthly water production

174 months filed with the Michigan Department of Environment, Great Lakes, and Energy, Mar 2004 to Jul 2019. 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

6,207 bbl

Months filed

174

Month	Water (bbl)
Jul 2019	0
Jun 2019	503
May 2019	560
Apr 2019	1,083
Mar 2019	786
Feb 2019	142
Jan 2019	157
Dec 2018	148
Nov 2018	124
Oct 2018	147
Sep 2018	148
Aug 2018	120
Jul 2018	98
Jun 2018	86
May 2018	73
Apr 2018	92
Mar 2018	66
Feb 2018	77
Jan 2018	47
Dec 2017	70
Nov 2017	42
Oct 2017	19
Sep 2017	11
Aug 2017	14
Jul 2017	22
Jun 2017	22
May 2017	16
Apr 2017	37
Mar 2017	74
Feb 2017	54
Jan 2017	3
Dec 2016	16
Nov 2016	15
Oct 2016	10
Sep 2016	15
Aug 2016	16
Jul 2016	15
Jun 2016	18
May 2016	16
Apr 2016	10
Mar 2016	7
Feb 2016	8
Jan 2016	7
Dec 2015	8
Nov 2015	9
Oct 2015	9
Sep 2015	9
Aug 2015	10
Jul 2015	11
Jun 2015	10
May 2015	11
Apr 2015	8
Mar 2015	9
Feb 2015	9
Jan 2015	13
Dec 2014	15
Nov 2014	20
Oct 2014	21
Sep 2014	18
Aug 2014	21
Jul 2014	21
Jun 2014	20
May 2014	36
Apr 2014	31
Mar 2014	26
Feb 2014	30
Jan 2014	30
Dec 2013	21
Nov 2013	6
Oct 2013	69
Sep 2013	5
Aug 2013	19
Jul 2013	20
Jun 2013	34
May 2013	28
Apr 2013	0
Mar 2013	10
Feb 2013	19
Jan 2013	9
Dec 2012	0
Nov 2012	6
Oct 2012	7
Sep 2012	10
Aug 2012	6
Jul 2012	12
Jun 2012	11
May 2012	5
Apr 2012	5
Mar 2012	17
Feb 2012	4
Jan 2012	14
Dec 2011	39
Nov 2011	33
Oct 2011	40
Sep 2011	21
Aug 2011	0
Jul 2011	2
Jun 2011	3
May 2011	10
Apr 2011	26
Mar 2011	29
Feb 2011	23
Jan 2011	41
Dec 2010	43
Nov 2010	36
Oct 2010	25
Sep 2010	0
Aug 2010	0
Jul 2010	0
Jun 2010	0
May 2010	0
Apr 2010	0
Mar 2010	0
Feb 2010	0
Jan 2010	0
Dec 2009	0
Nov 2009	0
Oct 2009	0
Sep 2009	0
Aug 2009	0
Jul 2009	0
Jun 2009	0
May 2009	0
Apr 2009	0
Mar 2009	0
Feb 2009	0
Jan 2009	0
Dec 2008	0
Nov 2008	1
Oct 2008	0
Sep 2008	0
Aug 2008	0
Jul 2008	0
Jun 2008	1
May 2008	0
Apr 2008	13
Mar 2008	0
Feb 2008	1
Jan 2008	9
Dec 2007	0
Nov 2007	2
Oct 2007	4
Sep 2007	6
Aug 2007	0
Jul 2007	0
Jun 2007	38
May 2007	0
Apr 2007	0
Mar 2007	0
Feb 2007	0
Jan 2007	0
Dec 2006	0
Nov 2006	0
Oct 2006	0
Sep 2006	3
Aug 2006	0
Jul 2006	0
Jun 2006	0
May 2006	0
Apr 2006	0
Mar 2006	0
Feb 2006	0
Jan 2006	0
Dec 2005	0
Nov 2005	0
Oct 2005	1
Sep 2005	1
Aug 2005	0
Jul 2005	0
Jun 2005	0
May 2005	0
Apr 2005	0
Mar 2005	20
Mar 2004	—

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
WOLF	C4-3	Natural Gas Well	RIVERSIDE ENERGY MICHIGAN LLC	Producing	Apr 1993 — Jul 2019

Michigan Department of Environment, Great Lakes, and Energy data, corpus built 2026-09-07. Lease 18575.