WOLF UNIT

Lease 18576 · 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

112,109 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	876
Jun 2019	917
May 2019	1,000
Apr 2019	960
Mar 2019	1,059
Feb 2019	921
Jan 2019	1,022
Dec 2018	1,000
Nov 2018	994
Oct 2018	1,013
Sep 2018	846
Aug 2018	726
Jul 2018	676
Jun 2018	635
May 2018	759
Apr 2018	683
Mar 2018	774
Feb 2018	715
Jan 2018	763
Dec 2017	730
Nov 2017	740
Oct 2017	752
Sep 2017	474
Aug 2017	751
Jul 2017	734
Jun 2017	669
May 2017	717
Apr 2017	701
Mar 2017	641
Feb 2017	512
Jan 2017	546
Dec 2016	517
Nov 2016	474
Oct 2016	508
Sep 2016	490
Aug 2016	513
Jul 2016	507
Jun 2016	479
May 2016	521
Apr 2016	565
Mar 2016	570
Feb 2016	519
Jan 2016	525
Dec 2015	567
Nov 2015	469
Oct 2015	615
Sep 2015	579
Aug 2015	629
Jul 2015	599
Jun 2015	545
May 2015	467
Apr 2015	382
Mar 2015	269
Feb 2015	307
Jan 2015	217
Dec 2014	475
Nov 2014	517
Oct 2014	527
Sep 2014	466
Aug 2014	460
Jul 2014	477
Jun 2014	403
May 2014	510
Apr 2014	572
Mar 2014	552
Feb 2014	522
Jan 2014	508
Dec 2013	487
Nov 2013	421
Oct 2013	501
Sep 2013	443
Aug 2013	442
Jul 2013	387
Jun 2013	318
May 2013	615
Apr 2013	771
Mar 2013	618
Feb 2013	505
Jan 2013	607
Dec 2012	595
Nov 2012	596
Oct 2012	619
Sep 2012	547
Aug 2012	573
Jul 2012	658
Jun 2012	615
May 2012	674
Apr 2012	644
Mar 2012	706
Feb 2012	575
Jan 2012	697
Dec 2011	747
Nov 2011	734
Oct 2011	721
Sep 2011	671
Aug 2011	788
Jul 2011	886
Jun 2011	827
May 2011	858
Apr 2011	832
Mar 2011	712
Feb 2011	719
Jan 2011	822
Dec 2010	814
Nov 2010	781
Oct 2010	796
Sep 2010	767
Aug 2010	771
Jul 2010	876
Jun 2010	738
May 2010	750
Apr 2010	772
Mar 2010	746
Feb 2010	620
Jan 2010	519
Dec 2009	593
Nov 2009	634
Oct 2009	875
Sep 2009	844
Aug 2009	871
Jul 2009	903
Jun 2009	883
May 2009	904
Apr 2009	899
Mar 2009	779
Feb 2009	770
Jan 2009	873
Dec 2008	864
Nov 2008	726
Oct 2008	522
Sep 2008	669
Aug 2008	741
Jul 2008	768
Jun 2008	754
May 2008	794
Apr 2008	755
Mar 2008	564
Feb 2008	438
Jan 2008	490
Dec 2007	540
Nov 2007	523
Oct 2007	544
Sep 2007	575
Aug 2007	593
Jul 2007	572
Jun 2007	507
May 2007	412
Apr 2007	559
Mar 2007	614
Feb 2007	464
Jan 2007	532
Dec 2006	601
Nov 2006	584
Oct 2006	559
Sep 2006	588
Aug 2006	610
Jul 2006	654
Jun 2006	564
May 2006	595
Apr 2006	599
Mar 2006	635
Feb 2006	485
Jan 2006	572
Dec 2005	673
Nov 2005	698
Oct 2005	699
Sep 2005	692
Aug 2005	616
Jul 2005	750
Jun 2005	730
May 2005	726
Apr 2005	576
Mar 2005	546
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

2,420 bbl

Months filed

174

Month	Water (bbl)
Jul 2019	16
Jun 2019	10
May 2019	14
Apr 2019	41
Mar 2019	34
Feb 2019	15
Jan 2019	17
Dec 2018	19
Nov 2018	26
Oct 2018	64
Sep 2018	83
Aug 2018	79
Jul 2018	33
Jun 2018	23
May 2018	36
Apr 2018	10
Mar 2018	66
Feb 2018	173
Jan 2018	24
Dec 2017	12
Nov 2017	18
Oct 2017	33
Sep 2017	32
Aug 2017	45
Jul 2017	66
Jun 2017	37
May 2017	5
Apr 2017	10
Mar 2017	13
Feb 2017	14
Jan 2017	27
Dec 2016	45
Nov 2016	42
Oct 2016	25
Sep 2016	15
Aug 2016	14
Jul 2016	12
Jun 2016	10
May 2016	12
Apr 2016	9
Mar 2016	10
Feb 2016	9
Jan 2016	6
Dec 2015	7
Nov 2015	7
Oct 2015	8
Sep 2015	8
Aug 2015	9
Jul 2015	9
Jun 2015	8
May 2015	9
Apr 2015	7
Mar 2015	7
Feb 2015	8
Jan 2015	11
Dec 2014	13
Nov 2014	14
Oct 2014	15
Sep 2014	16
Aug 2014	18
Jul 2014	18
Jun 2014	18
May 2014	31
Apr 2014	26
Mar 2014	43
Feb 2014	48
Jan 2014	13
Dec 2013	15
Nov 2013	13
Oct 2013	9
Sep 2013	2
Aug 2013	10
Jul 2013	1
Jun 2013	9
May 2013	24
Apr 2013	22
Mar 2013	6
Feb 2013	9
Jan 2013	7
Dec 2012	0
Nov 2012	3
Oct 2012	3
Sep 2012	3
Aug 2012	5
Jul 2012	0
Jun 2012	0
May 2012	0
Apr 2012	3
Mar 2012	3
Feb 2012	2
Jan 2012	3
Dec 2011	4
Nov 2011	3
Oct 2011	3
Sep 2011	4
Aug 2011	6
Jul 2011	4
Jun 2011	3
May 2011	15
Apr 2011	32
Mar 2011	18
Feb 2011	3
Jan 2011	14
Dec 2010	19
Nov 2010	26
Oct 2010	66
Sep 2010	38
Aug 2010	22
Jul 2010	44
Jun 2010	16
May 2010	12
Apr 2010	7
Mar 2010	12
Feb 2010	10
Jan 2010	7
Dec 2009	0
Nov 2009	7
Oct 2009	30
Sep 2009	0
Aug 2009	0
Jul 2009	0
Jun 2009	0
May 2009	5
Apr 2009	26
Mar 2009	23
Feb 2009	0
Jan 2009	0
Dec 2008	0
Nov 2008	0
Oct 2008	0
Sep 2008	0
Aug 2008	0
Jul 2008	0
Jun 2008	1
May 2008	4
Apr 2008	13
Mar 2008	10
Feb 2008	13
Jan 2008	15
Dec 2007	0
Nov 2007	0
Oct 2007	0
Sep 2007	0
Aug 2007	0
Jul 2007	0
Jun 2007	18
May 2007	0
Apr 2007	2
Mar 2007	0
Feb 2007	0
Jan 2007	0
Dec 2006	0
Nov 2006	0
Oct 2006	3
Sep 2006	11
Aug 2006	1
Jul 2006	3
Jun 2006	0
May 2006	0
Apr 2006	0
Mar 2006	3
Feb 2006	0
Jan 2006	3
Dec 2005	0
Nov 2005	3
Oct 2005	3
Sep 2005	2
Aug 2005	0
Jul 2005	0
Jun 2005	3
May 2005	0
Apr 2005	0
Mar 2005	3
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	A4-10	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 18576.