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WELCH

Lease 1001115889 · Stafford County, Kansas · NWNWSW Sec 18 T21S R12W · DOR 107046

Oil1964–20267 wells
Operator
MAD Operators LLC
Cumulative (state figure)
551,523.14 bbl
First production
1964
Last production
2026
Location (PLSS)
NWNWSW Sec 18 T21S R12W

Monthly oil production

396 months filed with the Kansas Geological Survey, Jan 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
84,162.10 bbl
Months filed
396
Most wells in a month
3

This lease was producing before 1980, and the series begins in January 1980. The total above covers the months shown, not the life of the lease; the state's own cumulative is 551,523.14 bbl.

MonthOil (bbl)Wells
Apr 202626.002
Dec 2025156.492
Oct 2025167.532
Aug 2025155.602
May 2025170.552
Mar 2025160.322
Dec 2024171.032
Oct 2024167.812
Sep 2024160.602
Jul 2024151.632
Jun 2024160.282
Apr 2024165.732
Mar 2024164.622
Nov 2023168.392
Sep 2023161.262
Aug 2023156.642
Jun 2023163.922
May 2023161.102
Mar 2023153.432
Feb 2023165.472
Nov 2022147.102
Aug 2022156.422
Jun 2022152.862
Apr 2022155.392
Feb 2022162.372
Jan 2022169.332
Nov 2021165.142
Oct 2021159.862
Sep 202130.002
Aug 2021164.102
Jun 2021162.102
Apr 2021155.752
Feb 2021158.812
Dec 2020171.772
Oct 2020158.112
Sep 2020156.032
Jul 2020159.572
Jun 202058.002
Mar 2020173.522
Jan 2020160.272
Nov 2019158.012
Sep 2019158.402
Aug 2019152.402
Jul 2019159.112
Jun 2019179.112
May 2019163.782
Mar 2019157.512
Jan 2019318.932
Dec 2018162.202
Nov 2018164.542
Oct 201820.002
Sep 2018157.202
Jul 2018160.102
May 201820.002
Apr 2018147.742
Dec 2017161.192
Oct 2017159.572
Sep 2017150.832
Aug 2017159.602
Jul 2017160.572
May 2017160.572
Apr 2017162.192
Mar 2017159.652
Jan 2017163.382
Dec 2016163.272
Oct 2016163.342
Sep 2016158.332
Aug 2016157.512
Jul 2016157.902
May 2016164.092
Apr 2016164.412
Feb 2016158.102
Jan 2016162.322
Dec 2015165.932
Nov 2015205.502
Oct 2015164.192
Aug 2015158.412
Jul 2015162.022
May 2015319.552
Apr 201510.002
Mar 2015179.992
Jan 2015161.512
Dec 2014164.272
Oct 2014159.762
Sep 2014162.552
Aug 201435.002
Jul 2014156.472
Jun 2014161.341
May 2014160.991
Mar 2014159.991
Jan 2014162.501
Nov 2013163.751
Oct 2013159.631
Aug 2013161.661
Jul 2013161.621
Jun 2013157.641
Apr 2013162.231
Mar 2013164.011
Feb 2013160.051
Jan 2013163.991
Dec 2012244.091
Nov 2012162.641
Oct 2012162.881
Sep 2012161.571
Aug 2012161.441
Jul 2012159.481
Jun 2012156.141
May 2012162.071
Apr 2012163.021
Mar 2012165.631
Feb 2012164.321
Jan 2012163.841
Dec 2011166.011
Nov 2011162.101
Oct 2011166.971
Sep 2011161.511
Aug 2011159.751
Jul 2011316.861
Jun 2011162.801
May 2011160.371
Apr 2011164.241
Mar 2011163.211
Feb 2011162.251
Jan 2011158.781
Dec 2010167.041
Nov 2010162.951
Oct 2010325.521
Sep 2010156.041
Aug 2010157.971
Jul 2010313.931
Jun 2010324.151
May 2010158.381
Apr 2010159.681
Mar 2010318.741
Feb 2010163.991
Jan 2010161.771
Dec 2009318.721
Nov 2009164.321
Oct 2009326.081
Sep 2009156.441
Aug 2009323.951
Jul 2009160.701
Jun 2009278.321
May 2009157.001
Apr 2009321.771
Mar 2009165.471
Feb 2009327.701
Jan 2009159.401
Dec 2008327.681
Nov 2008493.751
Oct 2008159.461
Sep 2008485.471
Aug 2008160.511
Jul 2008318.721
Jun 2008319.511
May 2008327.871
Apr 2008327.641
Mar 2008493.511
Feb 2008493.091
Jan 2008330.621
Dec 2007496.321
Nov 2007331.211
Oct 2007161.061
Aug 2007164.131
Jul 2007492.061
Jun 2007323.801
May 2007138.291
Apr 2007163.361
Mar 2007164.161
Feb 2007165.581
Nov 2006322.891
Aug 2006158.701
Jun 2006162.241
Mar 2006164.061
Feb 200612.531
Jan 2006155.571
Dec 2005162.581
Nov 20054.691
Sep 2005164.911
Jul 2005156.281
May 2005162.911
Mar 2005155.311
Dec 2004168.021
Oct 2004152.091
Aug 2004164.011
Jun 2004157.191
Apr 2004167.531
Feb 2004166.171
Dec 2003169.481
Oct 2003162.431
Aug 2003162.221
Jun 2003165.591
Apr 2003166.471
Feb 2003165.561
Dec 2002166.191
Oct 2002165.871
Aug 2002161.481
Jun 2002158.181
Apr 2002165.791
Mar 2002167.101
Jan 2002167.441
Oct 2001172.283
May 2001168.213
Mar 2001159.423
Oct 2000163.503
Jul 2000150.743
Jun 2000160.183
Feb 2000168.993
Nov 1999167.443
Sep 1999163.523
Jul 1999161.493
Dec 1998160.273
Sep 1998172.113
Jul 1998162.753
May 1998158.283
Feb 1998158.143
Jan 1998165.863
Oct 1997160.243
Jun 1997149.753
May 1997160.283
Mar 1997167.743
Jan 1997164.153
Nov 1996164.473
Jun 1996161.853
Apr 1996162.123
Mar 1996162.433
Feb 1996164.353
Dec 1995161.003
Nov 1995164.003
Oct 1995164.003
Aug 1995122.003
Jul 1995159.003
May 1995163.003
Mar 1995156.003
Feb 1995168.003
Dec 1994196.003
Nov 1994167.003
Sep 1994158.003
Aug 1994160.003
Jun 1994164.003
May 1994162.003
Apr 1994160.003
Feb 1994166.003
Jan 1994166.003
Dec 1993164.003
Oct 1993163.003
Sep 1993160.003
Aug 1993179.003
Jun 1993163.003
May 1993153.003
Apr 1993165.003
Feb 1993156.003
Jan 1993167.003
Dec 1992162.003
Oct 1992164.003
Sep 1992163.003
Aug 1992161.003
Jul 1992160.003
Jun 1992163.003
Mar 1992166.003
Feb 1992161.003
Jan 1992167.003
Dec 1991164.003
Oct 1991326.003
Aug 1991160.003
Jul 1991161.003
Jun 1991163.003
May 1991164.003
Apr 1991166.003
Feb 1991162.003
Jan 199180.003
Dec 1990172.003
Nov 1990168.003
Oct 1990177.003
Aug 1990163.003
Jul 1990148.003
Jun 1990164.003
May 1990179.003
Apr 1990171.003
Mar 1990165.003
Feb 1990192.003
Jan 1990166.003
Dec 1989149.003
Nov 1989121.003
Oct 1989164.003
Aug 1989299.003
Jul 1989160.003
May 1989162.003
Apr 1989161.003
Mar 1989163.003
Feb 1989168.003
Jan 1989166.003
Dec 1988166.003
Nov 1988164.003
Oct 1988165.003
Sep 1988326.003
Aug 1988161.003
Jul 1988163.003
Jun 1988162.003
May 1988328.003
Apr 1988163.003
Mar 1988167.003
Feb 1988333.003
Jan 1988167.003
Dec 1987166.003
Nov 1987331.003
Oct 1987164.003
Sep 1987318.003
Aug 1987331.003
Jul 1987168.003
Jun 1987326.003
May 1987165.003
Apr 1987164.003
Mar 1987325.003
Feb 1987168.003
Jan 1987334.003
Dec 1986165.003
Nov 1986329.003
Oct 1986164.003
Sep 1986328.003
Aug 1986163.003
Jul 1986327.003
Jun 1986164.003
May 1986329.003
Apr 1986165.003
Mar 1986493.003
Feb 1986165.003
Jan 1986168.003
Dec 1985340.003
Nov 1985166.003
Oct 1985163.003
Sep 1985326.003
Aug 1985162.003
Jul 1985326.003
Jun 1985167.003
May 1985329.003
Apr 1985329.003
Mar 1985165.003
Feb 1985504.003
Jan 1985155.003
Dec 1984168.003
Nov 1984327.003
Oct 1984328.003
Sep 1984324.003
Aug 1984163.003
Jul 1984321.003
Jun 1984326.003
May 1984336.003
Apr 1984326.003
Mar 1984323.003
Feb 1984300.003
Jan 1984318.003
Dec 1983321.003
Nov 1983321.003
Oct 1983329.003
Sep 1983325.003
Aug 1983484.003
Jul 1983476.003
Jun 1983316.003
May 1983298.003
Apr 1983298.003
Mar 1983330.003
Feb 1983324.003
Jan 1983668.003
Dec 1982165.003
Nov 1982331.003
Oct 1982495.003
Sep 1982327.003
Aug 1982328.003
Jul 1982470.003
Jun 1982629.003
May 1982313.003
Apr 1982167.003
Mar 1982419.003
Feb 1982446.003
Jan 1982452.003
Dec 1981860.003
Nov 1981715.003
Oct 1981520.003
Aug 1981477.003
Jul 1981221.003
May 1981243.003
Apr 1981240.003
Mar 1981260.003
Jan 1981236.003
Dec 1980510.003
Oct 1980528.003
Sep 1980273.003
Aug 1980242.003
Jul 1980216.003
Jun 1980273.003
May 1980502.003
Apr 1980527.003
Mar 1980259.003
Feb 1980780.003
Jan 1980267.003

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

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

WellNo.OperatorStatus
Welch 'B'1unavailablePlugged and Abandoned
Welsh 'A'2Xanadu Exploration CompanyConverted to EOR Well
J. Welsh 'A'2MAD Operators LLCAuthorized Injection Well
Welsh 'A'3MAD Operators LLCProducing
Welsh5MAD Operators LLCProducing
Welch1unavailable—
Welch 'A'3unavailable—

Location

38.223333, -98.691272 · NWNWSW Sec 18 T21S R12W

Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001115889. The state’s own record.