KLAASSEN D & F

Lease 1001126463 · Butler County, Kansas · NWSWNW Sec 12 T25S R3E · DOR 113230

Oil1980–20263 wells
Operator
Ainsworth Operating Co.
Cumulative (state figure)
123,410.27 bbl
First production
1980
Last production
2026
Location (PLSS)
NWSWNW Sec 12 T25S R3E

Monthly oil production

509 months filed with the Kansas Geological Survey, May 1980 to Apr 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
123,410.30 bbl
Months filed
509
Most wells in a month
3
MonthOil (bbl)Wells
Apr 2026157.923
Mar 2026158.593
Feb 2026162.223
Jan 2026162.443
Dec 2025158.013
Nov 2025158.383
Oct 2025159.163
Sep 2025158.723
Aug 2025157.043
Jul 2025157.503
Jun 2025156.163
May 2025157.083
Mar 2025157.083
Jan 2025161.623
Dec 2024158.553
Nov 2024160.783
Oct 2024158.123
Aug 2024158.403
Jul 2024153.483
May 2024158.553
Apr 2024158.793
Mar 2024159.253
Feb 2024158.263
Dec 2023161.233
Nov 2023161.363
Oct 2023158.493
Aug 2023158.493
Jul 2023157.083
Jun 2023159.003
May 2023157.923
Apr 2023158.143
Mar 2023158.123
Jan 2023161.563
Dec 2022159.043
Nov 2022158.883
Sep 2022155.103
Jul 2022154.883
Jun 2022157.073
Apr 2022158.283
Mar 2022161.313
Jan 2022161.023
Dec 2021159.133
Nov 2021161.383
Sep 2021155.433
Aug 2021156.643
Jul 2021155.333
May 2021159.313
Mar 2021155.033
Feb 2021164.093
Dec 2020157.693
Nov 2020158.813
Sep 2020156.913
Jul 2020158.723
Jun 2020157.243
May 2020157.983
Mar 2020157.153
Feb 2020162.843
Dec 2019157.683
Nov 2019161.113
Oct 2019154.733
Aug 2019156.663
Jul 2019156.753
Jun 2019158.003
Apr 2019158.801
Mar 2019162.871
Jan 2019159.351
Nov 2018161.371
Oct 2018158.861
Sep 2018157.881
Aug 2018155.091
Jun 2018155.911
May 2018158.221
Mar 2018159.131
Jan 2018158.191
Dec 2017160.911
Oct 2017158.441
Sep 2017156.761
Jul 2017155.181
Jun 2017156.271
May 2017157.801
Mar 2017158.131
Feb 2017159.691
Dec 2016159.951
Nov 2016157.911
Oct 2016159.131
Aug 2016153.271
Jul 2016155.401
Jun 2016157.721
May 2016157.681
Apr 2016155.091
Mar 2016158.871
Jan 2016160.471
Dec 2015159.771
Nov 2015158.951
Oct 2015158.471
Sep 2015155.431
Jul 2015153.961
Jun 2015157.991
May 2015156.471
Apr 2015161.041
Mar 2015158.131
Feb 2015160.911
Jan 2015160.961
Dec 2014160.101
Oct 2014161.061
Sep 2014151.821
Aug 2014148.881
Jul 2014151.571
Jun 2014155.401
May 2014149.401
Apr 2014152.201
Mar 2014160.951
Feb 2014154.771
Jan 2014157.751
Dec 2013158.011
Nov 2013158.921
Oct 2013138.811
Sep 2013155.371
Aug 2013156.771
Jul 2013303.811
Jun 2013153.011
May 2013157.541
Apr 2013159.611
Mar 2013157.021
Feb 2013157.141
Jan 2013160.851
Dec 2012157.801
Nov 2012157.021
Oct 2012154.451
Sep 2012154.081
Aug 2012153.631
Jul 2012151.341
Jun 2012154.381
May 2012148.761
Apr 2012307.281
Mar 2012155.721
Feb 2012157.091
Jan 2012155.471
Dec 2011158.671
Nov 2011159.681
Oct 2011313.581
Sep 2011150.541
Aug 2011150.671
Jul 2011150.191
Jun 2011308.491
May 2011148.711
Apr 2011158.281
Mar 2011307.011
Feb 2011153.721
Jan 2011313.171
Dec 2010159.701
Nov 2010157.371
Oct 2010307.141
Sep 2010152.711
Aug 2010299.661
Jul 2010149.141
Jun 2010304.141
May 2010153.481
Apr 2010330.111
Mar 2010155.551
Feb 2010328.061
Jan 2010141.581
Dec 2009316.151
Nov 2009157.471
Oct 2009160.471
Sep 2009314.541
Aug 2009154.481
Jul 2009313.771
Jun 2009155.581
May 2009309.761
Apr 2009158.171
Mar 2009157.461
Feb 2009158.601
Jan 2009312.301
Dec 2008156.701
Nov 2008157.911
Oct 2008311.401
Sep 2008153.651
Aug 2008304.291
Jul 2008154.611
Jun 2008154.901
May 2008319.311
Apr 2008158.281
Mar 2008319.151
Feb 2008155.481
Jan 2008313.751
Dec 2007156.041
Nov 2007154.201
Oct 2007318.791
Sep 2007155.391
Aug 2007336.741
Jul 2007155.001
Jun 2007157.371
May 2007311.471
Apr 2007160.281
Mar 2007312.111
Feb 2007155.591
Jan 2007319.901
Dec 2006158.231
Nov 2006158.181
Oct 2006157.511
Sep 2006155.051
Aug 2006312.411
Jul 2006154.251
Jun 2006308.601
May 2006155.391
Apr 2006155.741
Mar 2006157.941
Feb 2006162.371
Jan 2006309.431
Dec 2005159.501
Nov 2005316.111
Oct 2005157.691
Sep 2005155.141
Aug 2005316.521
Jul 2005154.101
May 2005156.391
Apr 2005163.371
Mar 2005320.571
Feb 2005162.041
Jan 2005162.081
Dec 2004161.721
Nov 2004323.091
Oct 2004156.401
Sep 2004156.741
Aug 2004161.041
Jul 2004157.911
Jun 2004156.071
May 2004313.871
Mar 2004323.341
Feb 2004162.431
Jan 2004162.291
Dec 2003329.001
Nov 2003162.621
Oct 2003159.451
Sep 2003322.661
Aug 2003157.141
Jul 2003317.001
Jun 2003157.611
May 2003157.731
Apr 2003318.411
Mar 2003159.511
Feb 2003298.791
Jan 2003158.961
Dec 2002160.021
Nov 2002161.041
Oct 2002321.381
Sep 2002155.832
Aug 2002312.722
Jul 2002157.562
Jun 2002314.612
May 2002156.382
Apr 2002313.311
Mar 2002314.861
Feb 2002162.191
Jan 2002354.721
Oct 2001316.511
Sep 2001156.861
Aug 2001317.931
Jul 2001316.491
Jun 2001158.021
May 2001315.871
Apr 2001315.711
Mar 2001160.281
Feb 2001161.781
Jan 2001326.221
Dec 2000324.791
Oct 2000316.911
Sep 2000317.561
Jul 2000315.301
Jun 2000158.221
May 2000317.211
Apr 2000316.191
Mar 2000160.441
Feb 2000324.681
Jan 2000322.071
Dec 1999322.371
Nov 1999310.271
Oct 1999178.911
Sep 1999320.911
Aug 1999466.941
Jul 1999159.281
Jun 1999309.011
May 1999312.681
Apr 1999159.371
Mar 1999319.951
Feb 1999194.901
Jan 1999319.741
Dec 1998151.041
Nov 1998195.841
Oct 1998333.401
Sep 1998465.601
Aug 1998156.091
Jul 1998338.251
Jun 1998315.441
May 1998475.561
Apr 1998154.411
Mar 1998322.911
Feb 1998353.681
Jan 1998320.491
Dec 1997323.211
Nov 1997322.721
Oct 1997319.381
Sep 1997351.041
Aug 1997315.391
Jul 1997315.301
Jun 1997314.661
May 1997435.781
Apr 1997312.171
Mar 1997473.471
Feb 1997326.571
Jan 1997322.441
Dec 1996325.621
Nov 1996323.381
Oct 1996466.931
Sep 1996311.511
Aug 1996350.231
Jul 1996308.601
Jun 1996191.671
May 1996350.961
Apr 1996318.121
Mar 1996351.881
Feb 1996315.311
Jan 1996563.551
Dec 1995160.001
Nov 1995321.001
Oct 1995510.001
Sep 1995311.001
Aug 1995477.001
Jul 1995311.001
Jun 1995392.001
May 1995314.001
Apr 1995317.001
Mar 1995479.001
Feb 1995321.001
Jan 1995320.001
Dec 1994484.001
Nov 1994473.001
Oct 1994314.001
Sep 1994471.001
Aug 1994316.001
Jul 1994320.001
Jun 1994465.001
May 1994350.001
Apr 1994505.001
Mar 1994320.001
Feb 1994351.001
Jan 1994493.001
Dec 1993349.001
Nov 1993484.001
Oct 1993159.001
Sep 1993464.001
Aug 1993480.001
Jul 1993316.001
Jun 1993466.001
May 1993314.001
Apr 1993474.001
Mar 1993323.001
Feb 1993332.001
Jan 1993485.001
Dec 1992326.001
Nov 1992163.001
Sep 1992160.001
Aug 1992152.001
Jul 1992162.001
Jun 1992160.001
May 1992157.001
Apr 1992165.001
Mar 1992163.001
Jan 1992164.001
Dec 1991163.001
Oct 1991160.001
Sep 1991159.001
Aug 1991160.001
Jul 1991164.001
Jun 1991157.001
May 1991163.001
Apr 1991161.001
Mar 1991163.001
Feb 1991165.001
Jan 1991167.001
Dec 1990166.001
Nov 1990161.001
Oct 1990161.001
Sep 1990162.001
Aug 1990164.001
Jul 1990161.001
Jun 1990162.001
May 1990160.001
Apr 1990163.001
Mar 1990154.001
Feb 1990159.001
Jan 1990159.001
Dec 1989165.001
Nov 1989163.001
Oct 1989159.001
Sep 1989159.001
Aug 1989162.001
Jul 1989160.001
Jun 1989163.001
May 1989162.001
Apr 1989162.001
Mar 1989164.001
Feb 1989164.001
Jan 1989164.001
Dec 1988161.001
Nov 1988165.001
Oct 1988165.001
Sep 1988319.001
Aug 1988161.001
Jul 1988160.001
Jun 1988162.001
May 1988161.001
Apr 1988323.001
Mar 1988166.001
Feb 1988166.001
Jan 1988144.001
Dec 1987158.001
Nov 1987161.001
Oct 1987162.001
Sep 1987152.001
Aug 1987310.001
Jul 1987163.001
Jun 1987149.001
May 1987158.001
Apr 1987119.001
Mar 1987161.001
Feb 1987325.001
Jan 1987162.001
Dec 1986162.001
Nov 1986167.001
Oct 1986322.001
Sep 1986159.001
Aug 1986163.001
Jul 1986152.001
Jun 1986155.001
May 1986328.001
Apr 1986308.001
Mar 1986162.001
Feb 1986166.001
Jan 1986158.001
Dec 1985164.001
Nov 1985157.001
Oct 1985320.001
Sep 1985156.001
Aug 1985163.001
Jul 1985318.001
Jun 1985163.001
May 1985159.001
Apr 1985158.001
Mar 1985321.001
Feb 1985163.001
Jan 1985164.001
Dec 1984327.001
Nov 1984163.001
Oct 1984163.001
Sep 1984321.001
Aug 1984158.001
Jul 1984325.001
Jun 1984163.001
May 1984328.001
Apr 1984167.001
Mar 1984324.001
Feb 1984325.001
Jan 1984329.001
Dec 1983165.001
Nov 1983331.001
Oct 1983323.001
Sep 1983163.001
Aug 1983316.001
Jul 1983327.001
Jun 1983306.001
May 1983323.001
Apr 1983323.001
Mar 1983314.001
Feb 1983320.001
Jan 1983319.001
Dec 1982318.001
Nov 1982467.001
Oct 1982317.001
Sep 1982460.001
Aug 1982322.001
Jul 1982449.001
Jun 1982459.001
May 1982454.001
Apr 1982472.001
Mar 1982467.001
Feb 1982325.001
Jan 1982481.001
Dec 1981642.001
Nov 1981620.001
Oct 1981308.001
Sep 1981464.001
Aug 1981606.001
Jul 1981629.001
Jun 1981621.001
May 1981621.001
Apr 1981494.001
Mar 1981827.001
Feb 1981498.001
Jan 1981332.001
Dec 1980644.001
Nov 1980649.001
Oct 1980795.001
Sep 1980474.001
Aug 1980968.001
Jul 1980972.001
Jun 19801,058.001
May 1980918.001

Lease-level volumes as filed with the Kansas Geological Survey. A blank well count is a month the state filed no count for, not a month with no wells.

Wells on this lease

3 wells the state's well register assigns to this lease. Every one has a page.

WellNo.OperatorStatus
KLAASSEN 'F'1Ainsworth Operating Co.Producing
KLAASSEN 'D'1Ainsworth Operating Co.Producing
KLAASSEN 'F'2Ainsworth Operating Co.Producing

Location

37.893026, -97.059174 · NWSWNW Sec 12 T25S R3E

Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001126463. The state’s own record.