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ROCKAFELLOW, W E 1

Lease 3939 · ARENAC County, Michigan · Adams North field · Dundee

OilWater1997–20251 well
Operator
SAPPINGTON WALTER B DIANNE M
Field
Adams North
Formation
Dundee
Field type (as filed)
O
First production
1997
Last production
2025

Monthly oil production

271 months filed with the Michigan Department of Environment, Great Lakes, and Energy, Dec 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
35,681 bbl
Months filed
271

The Michigan Department of Environment, Great Lakes, and Energy records first production from this unit in 1940, and the monthly series below begins in Dec 1997. The total above covers the months shown, not the life of the unit.

MonthOil (bbl)
Dec 2025145
Nov 2025106
Oct 2025146
Sep 2025135
Aug 2025146
Jul 2025143
Jun 2025160
May 202540
Apr 202520
Mar 2025138
Feb 2025139
Jan 2025140
Dec 202490
Nov 2024118
Oct 2024138
Sep 2024152
Aug 2024162
Jul 2024172
Jun 2024163
May 2024174
Apr 2024182
Mar 2024188
Feb 2024174
Jan 2024180
Dec 2023143
Nov 2023150
Oct 2023171
Sep 2023139
Aug 2023154
Jul 2023130
Jun 2023152
May 2023185
Apr 2023120
Mar 202396
Feb 20230
Jan 20230
Dec 20220
Nov 20220
Oct 20220
Sep 20220
Aug 20220
Jul 20220
Jun 20220
May 20220
Apr 20220
Mar 20220
Feb 2022137
Jan 202285
Dec 202147
Nov 202186
Oct 202160
Sep 202198
Aug 202150
Jul 2021137
Jun 2021150
May 2021134
Apr 2021101
Mar 2021100
Feb 202184
Jan 202185
Dec 202086
Nov 202087
Oct 202060
Sep 202081
Aug 202050
Jul 202060
Jun 202080
May 202060
Apr 202087
Mar 202085
Feb 202045
Jan 202080
Dec 201910
Nov 201910
Oct 201972
Sep 201965
Aug 201999
Jul 2019105
Jun 201950
May 201965
Apr 201995
Mar 201991
Feb 201985
Jan 20190
Dec 20180
Nov 20180
Oct 20180
Sep 20180
Aug 2018126
Jul 201894
Jun 201875
May 2018131
Apr 2018144
Mar 2018102
Feb 201894
Jan 201875
Dec 201774
Nov 2017120
Oct 201740
Sep 201740
Aug 201751
Jul 201755
Jun 201745
May 201726
Apr 201730
Mar 201750
Feb 201755
Jan 201736
Dec 20163
Nov 201630
Oct 201640
Sep 201668
Aug 201660
Jul 201650
Jun 201629
May 2016119
Apr 2016115
Mar 2016148
Feb 2016151
Jan 2016105
Dec 2015102
Nov 201570
Oct 2015124
Sep 2015131
Aug 2015126
Jul 201598
Jun 201560
May 201587
Apr 201585
Mar 2015101
Feb 201581
Jan 201565
Dec 201496
Nov 201463
Oct 2014114
Sep 2014133
Aug 2014153
Jul 2014161
Jun 2014124
May 2014162
Apr 2014126
Mar 2014178
Feb 20140
Jan 201470
Dec 2013142
Nov 201367
Oct 2013147
Sep 201358
Aug 2013142
Jul 201322
Jun 201365
May 2013135
Apr 201339
Mar 201341
Feb 201394
Jan 201380
Dec 2012102
Nov 2012109
Oct 2012106
Sep 201236
Aug 201266
Jul 201255
Jun 2012144
May 2012105
Apr 2012124
Mar 201277
Feb 2012118
Jan 201213
Dec 201163
Nov 201196
Oct 201187
Sep 201198
Aug 201187
Jul 201186
Jun 201150
May 201185
Apr 2011147
Mar 2011128
Feb 2011119
Jan 2011136
Dec 201015
Nov 201050
Oct 2010123
Sep 2010124
Aug 2010119
Jul 2010108
Jun 2010114
May 2010113
Apr 201093
Mar 2010125
Feb 2010108
Jan 2010114
Dec 2009143
Nov 2009117
Oct 2009109
Sep 2009127
Aug 2009117
Jul 2009146
Jun 2009100
May 2009118
Apr 200992
Mar 200978
Feb 200921
Jan 2009112
Dec 2008167
Nov 200882
Oct 2008108
Sep 2008111
Aug 2008107
Jul 200860
Jun 200874
May 2008172
Apr 2008139
Mar 2008107
Feb 2008130
Jan 2008150
Dec 2007112
Nov 2007117
Oct 2007105
Sep 2007141
Aug 200752
Jul 2007159
Jun 2007140
May 200790
Apr 2007106
Mar 2007111
Feb 200788
Jan 200721
Dec 2006109
Nov 2006163
Oct 2006130
Sep 2006106
Aug 2006133
Jul 2006113
Jun 200694
May 2006103
Apr 2006192
Mar 2006195
Feb 2006163
Jan 2006106
Dec 20050
Nov 2005137
Oct 2005174
Sep 2005120
Aug 200512
Jul 200515
Jun 200561
May 200540
Apr 200579
Mar 200575
Feb 200512
Jan 200542
Dec 200425
Nov 2004120
Oct 2004164
Sep 2004150
Aug 2004152
Jul 2004124
Jun 2004181
May 2004145
Apr 200468
Mar 200485
Feb 200495
Jan 2004140
Dec 20031,602
Dec 20021,860
Dec 20011,610
Dec 20001,800
Dec 19991,695
Dec 1998950
Dec 19971,293

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

Monthly water production

271 months filed with the Michigan Department of Environment, Great Lakes, and Energy, Dec 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
3,039,480 bbl
Months filed
271
MonthWater (bbl)
Dec 202517,200
Nov 202516,200
Oct 202517,200
Sep 202517,010
Aug 202517,110
Jul 202516,650
Jun 202517,500
May 202513,500
Apr 202511,500
Mar 202516,650
Feb 202515,800
Jan 202515,250
Dec 202417,112
Nov 202416,560
Oct 202415,000
Sep 202414,560
Aug 202415,102
Jul 202415,112
Jun 202415,456
May 202416,486
Apr 202416,560
Mar 20241,708
Feb 202412,904
Jan 202411,800
Dec 20236,500
Nov 20236,500
Oct 20236,500
Sep 20236,500
Aug 20236,500
Jul 20236,500
Jun 20236,500
May 20236,500
Apr 20236,500
Mar 20235,000
Feb 20230
Jan 20230
Dec 20220
Nov 20220
Oct 20220
Sep 20220
Aug 20220
Jul 20220
Jun 20220
May 20220
Apr 20220
Mar 20220
Feb 20225,000
Jan 20226,500
Dec 20214,000
Nov 20216,500
Oct 20215,000
Sep 20215,000
Aug 20214,000
Jul 20216,500
Jun 20216,500
May 20216,500
Apr 20216,500
Mar 20216,500
Feb 20215,000
Jan 20215,000
Dec 20206,500
Nov 20206,500
Oct 20206,500
Sep 20206,500
Aug 20205,000
Jul 20205,000
Jun 20205,000
May 20206,500
Apr 20206,500
Mar 20206,500
Feb 20205,000
Jan 20205,000
Dec 20191,500
Nov 20191,500
Oct 20196,500
Sep 20196,500
Aug 20196,500
Jul 20199,000
Jun 20195,000
May 20196,500
Apr 20196,500
Mar 20196,500
Feb 20195,000
Jan 20190
Dec 20180
Nov 20180
Oct 20180
Sep 20180
Aug 20186,500
Jul 20185,000
Jun 20185,000
May 20189,000
Apr 20189,000
Mar 20189,000
Feb 20185,000
Jan 20184,500
Dec 20174,500
Nov 20179,000
Oct 20178,500
Sep 20174,500
Aug 20176,500
Jul 20179,000
Jun 20179,000
May 20174,500
Apr 20179,000
Mar 20174,500
Feb 20174,500
Jan 20175,500
Dec 20169,000
Nov 20169,000
Oct 20168,500
Sep 20168,500
Aug 20166,500
Jul 20163,500
Jun 20166,500
May 20167,500
Apr 20164,500
Mar 20165,500
Feb 20166,500
Jan 20165,500
Dec 20159,500
Nov 20158,000
Oct 20159,900
Sep 20159,800
Aug 20159,900
Jul 20159,000
Jun 20158,500
May 20158,500
Apr 20158,500
Mar 20159,000
Feb 20156,500
Jan 20155,500
Dec 20148,500
Nov 20145,500
Oct 20149,900
Sep 20149,800
Aug 20149,900
Jul 201410,000
Jun 201410,000
May 201410,000
Apr 201410,000
Mar 20149,000
Feb 20140
Jan 20145,500
Dec 20139,900
Nov 20139,900
Oct 20139,900
Sep 20137,500
Aug 20130
Jul 20137,500
Jun 20131,000
May 20139,500
Apr 20131,000
Mar 20139,000
Feb 20139,100
Jan 20135,500
Dec 20129,900
Nov 20129,900
Oct 20129,900
Sep 20127,500
Aug 20128,500
Jul 20127,500
Jun 20121,000
May 20129,500
Apr 201210,000
Mar 20129,000
Feb 20129,100
Jan 20125,500
Dec 20119,900
Nov 20119,900
Oct 20119,900
Sep 201110,000
Aug 20119,600
Jul 20119,200
Jun 20117,500
May 20119,500
Apr 201110,000
Mar 201110,000
Feb 20119,100
Jan 20119,500
Dec 20101,500
Nov 20105,000
Oct 20109,900
Sep 201010,000
Aug 20109,600
Jul 20109,200
Jun 20109,500
May 20109,500
Apr 20108,500
Mar 201010,000
Feb 20109,100
Jan 20109,500
Dec 200910,500
Nov 20099,500
Oct 20099,400
Sep 20099,900
Aug 20099,600
Jul 200910,300
Jun 20099,800
May 200910,100
Apr 20098,500
Mar 20097,600
Feb 20091,500
Jan 20099,500
Dec 200812,800
Nov 20083,500
Oct 20089,900
Sep 200810,100
Aug 20088,500
Jul 20081,900
Jun 20082,100
May 200811,200
Apr 200810,400
Mar 20089,900
Feb 200810,200
Jan 20081,500
Dec 200710,980
Nov 200711,150
Oct 200710,300
Sep 200712,000
Aug 20073,500
Jul 200713,050
Jun 200712,150
May 20079,000
Apr 20079,900
Mar 200710,400
Feb 20078,600
Jan 20072,100
Dec 20068,100
Nov 200611,700
Oct 200612,150
Sep 200611,700
Aug 200613,050
Jul 200610,800
Jun 20064,950
May 20065,850
Apr 200611,700
Mar 200613,050
Feb 200610,350
Jan 20065,400
Dec 20050
Nov 20059,000
Oct 200511,160
Sep 200510,800
Aug 20055,040
Jul 20057,200
Jun 200510,800
May 200511,160
Apr 200510,800
Mar 20059,000
Feb 20051,080
Jan 20051,440
Dec 20047,560
Nov 200410,800
Oct 200410,800
Sep 200410,800
Aug 200410,800
Jul 200410,080
Jun 200410,440
May 200410,400
Apr 200410,800
Mar 200411,160
Feb 20046,800
Jan 200410,800
Dec 2003130,000
Dec 2002130,000
Dec 2001125,000
Dec 2000144,000
Dec 1999144,000
Dec 1998144,000
Dec 1997144,000

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.

WellNo.TypeOperatorStatusIn the unit
ROCKAFELLOW, WM E1Oil WellSAPPINGTON WALTER B DIANNE MProducingAug 1940 — still

Michigan Department of Environment, Great Lakes, and Energy data, corpus built 2026-09-07. Lease 3939.