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MASSMAN A

Lease 1001175323 · Leavenworth County, Kansas · Sec 23 T8S R21E · DOR 128010

Oil1990–20265 wells
Operator
Thomas Well Service, Inc.
Cumulative (state figure)
59,979.19 bbl
First production
1990
Last production
2026
Location (PLSS)
Sec 23 T8S R21E

Monthly oil production

304 months filed with the Kansas Geological Survey, Jan 1990 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
59,979.20 bbl
Months filed
304
Most wells in a month
4
MonthOil (bbl)Wells
Apr 2026318.594
Mar 2026478.184
Feb 2026322.384
Jan 2026318.604
Dec 2025313.994
Nov 2025312.974
Oct 2025473.114
Sep 2025479.604
Aug 2025323.814
Jul 2025318.194
Jun 2025471.344
May 2025311.654
Apr 2025465.444
Mar 2025311.434
Feb 2025156.304
Jan 2025158.374
Dec 2024155.464
Nov 2024156.824
Oct 2024313.024
Sep 2024460.504
Aug 2024310.794
Jul 2024306.104
Jun 2024305.184
May 2024314.434
Apr 2024473.824
Mar 2024313.494
Feb 2024319.704
Jan 2024317.444
Dec 2023317.774
Nov 2023315.714
Oct 2023312.084
Sep 2023309.474
Aug 2023315.574
Jul 2023317.514
Jun 2023317.154
May 2023314.354
Apr 2023311.364
Mar 2023311.474
Feb 2023157.914
Jan 2023475.334
Dec 2022159.224
Nov 2022314.014
Oct 2022312.954
Sep 2022311.464
Aug 2022469.204
Jul 2022315.124
Jun 2022156.204
May 2022320.904
Apr 2022316.634
Mar 2022319.854
Feb 2022320.094
Jan 2022321.934
Dec 2021317.464
Nov 2021312.044
Oct 2021155.364
Sep 2021315.144
Aug 2021309.554
Jul 2021309.804
Jun 2021309.244
May 2021316.544
Apr 2021485.124
Mar 2021156.344
Feb 2021158.664
Jan 2021316.924
Dec 2020320.674
Nov 2020159.704
Oct 2020311.404
Sep 2020154.574
Aug 2020306.214
Jul 2020468.264
Jun 2020159.634
May 2020157.744
Apr 2020156.344
Mar 2020309.084
Feb 2020153.924
Jan 2020158.944
Dec 2019312.024
Nov 2019153.484
Oct 2019155.454
Sep 2019155.684
Aug 2019153.054
Jul 2019151.884
Jun 2019155.334
May 2019155.004
Apr 2019155.034
Mar 2019155.604
Feb 2019155.534
Jan 2019156.804
Nov 2018154.754
Oct 2018154.054
Aug 2018153.664
Jun 2018154.934
Apr 2018154.464
Feb 2018155.574
Dec 2017156.794
Oct 2017153.564
Aug 2017155.784
Jun 2017148.884
Apr 2017152.514
Feb 2017150.354
Dec 2016151.474
Oct 2016150.244
Aug 2016143.434
Jul 2016156.334
May 2016159.423
Mar 2016152.803
May 2015145.053
Jul 2013162.744
Mar 2013157.754
Dec 2012159.234
Oct 2012155.654
Aug 2012153.974
May 2012160.594
Mar 2012160.294
Jan 2012155.534
Dec 2011155.234
Nov 2011158.414
Sep 2011159.744
Aug 2011159.964
Jul 2011150.894
Jun 2011158.254
Apr 2011152.484
Mar 2011163.124
Jan 2011161.344
Dec 2010157.134
Oct 2010156.054
Sep 2010155.544
Aug 2010148.194
Jul 2010151.244
Jun 2010152.834
May 2010154.334
Mar 2010151.734
Feb 2010153.014
Jan 2010149.444
Dec 2009155.054
Nov 2009157.864
Oct 2009153.844
Sep 2009151.564
Aug 2009154.444
Jun 2009152.934
May 2009155.354
Apr 2009158.864
Mar 2009157.134
Feb 2009158.764
Dec 2008160.984
Nov 2008158.504
Oct 2008154.224
Sep 2008157.534
Aug 2008154.604
Jul 2008156.874
Jun 2008156.324
May 2008153.144
Apr 2008155.744
Mar 2008159.164
Feb 2008154.584
Jan 2008157.204
Dec 2007153.564
Nov 2007158.914
Oct 2007161.984
Sep 2007156.294
Aug 2007158.774
Jul 2007152.184
Jun 2007154.254
May 2007155.264
Apr 2007157.394
Mar 2007157.934
Feb 2007155.314
Jan 2007156.914
Dec 2006155.994
Nov 2006156.094
Sep 2006154.574
Aug 2006311.604
Jul 2006148.224
Jun 2006156.804
May 2006155.644
Apr 2006155.514
Mar 2006155.344
Feb 2006157.584
Jan 2006311.374
Dec 2005158.404
Nov 2005152.504
Oct 2005155.574
Sep 2005313.594
Aug 2005161.534
Jul 2005304.574
Jun 2005157.274
May 2005313.514
Apr 2005315.474
Mar 2005156.574
Feb 2005151.794
Jan 2005157.933
Dec 2004323.383
Nov 2004323.543
Oct 2004161.893
Mar 2004154.103
Dec 2001112.373
Nov 2001143.843
Sep 200190.313
Aug 2001142.983
Jun 200181.363
Nov 200098.613
Aug 200082.463
Jun 200095.553
Apr 200053.653
Mar 2000153.263
Feb 200013.433
Dec 199941.913
Nov 1999120.743
Sep 199990.483
Aug 199974.383
Jul 1999100.033
May 199963.563
Apr 199984.643
Mar 199943.713
Feb 1999166.773
Dec 1998163.703
Sep 1998148.093
Aug 1998164.373
May 1998326.783
Dec 199788.793
Nov 199774.173
Oct 199794.263
Sep 1997122.133
Jul 199795.803
Jun 1997113.983
May 1997119.503
Apr 199794.813
Feb 199785.503
Dec 199641.623
Nov 199644.413
Oct 199689.493
Sep 1996103.093
Aug 199691.613
Jul 199682.523
Jun 1996111.023
May 1996111.193
Apr 1996103.303
Mar 1996118.103
Feb 1996125.963
Jan 199689.173
Dec 199578.003
Nov 1995122.003
Oct 1995146.003
Sep 199580.003
Aug 1995111.003
Jul 1995156.003
Apr 199578.003
Mar 1995142.003
Jan 1995100.003
Dec 1994137.003
Nov 199475.003
Oct 1994141.003
Sep 1994196.003
Aug 1994158.003
Jun 199490.003
May 1994156.003
Mar 1994203.003
Feb 1994162.003
Jan 1994149.003
Dec 1993160.003
Nov 1993156.003
Oct 1993160.003
Sep 1993151.003
Aug 1993161.003
Jul 1993141.003
Jun 1993220.003
May 1993230.003
Apr 1993159.003
Mar 1993319.003
Feb 1993146.003
Jan 1993153.003
Dec 1992321.003
Nov 1992308.003
Oct 1992317.003
Sep 1992317.003
Aug 1992312.003
Jul 1992462.003
Jun 1992789.003
May 1992155.003
Mar 1992199.003
Feb 199293.003
Jan 1992156.003
Dec 1991154.003
Nov 1991190.003
Oct 1991151.003
Sep 1991196.003
Aug 199159.003
Jun 199165.003
May 1991273.003
Apr 1991299.003
Mar 1991447.003
Feb 1991164.003
Jan 1991143.003
Dec 1990246.003
Nov 1990160.003
Oct 1990156.003
Sep 1990160.003
Jul 1990153.003
Jun 1990319.003
May 1990178.003
Apr 1990155.003
Mar 1990156.003
Feb 1990342.003
Jan 1990191.003

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

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

WellNo.OperatorStatus
MASSMAN1Thomas Well Service, Inc.Producing
MASSMAN2Daystar Petroleum, Inc.Converted to EOR Well
MASSMAN A2Thomas Well Service, Inc.Producing
MASSMAN3Thomas Well Service, Inc.Producing
MASSMAN 'A'4Thomas Well Service, Inc.Producing

Location

39.339085, -95.039234 · Sec 23 T8S R21E

Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001175323. The state’s own record.