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SARAH SLEEPER

Lease 1001175872 · Stafford County, Kansas · Sec 4 T22S R11W · DOR 133170

Oil1973–20266 wells
Operator
Vamco Operations
Cumulative (state figure)
375,896.41 bbl
First production
1973
Last production
2026
Location (PLSS)
Sec 4 T22S R11W

Monthly oil production

488 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
212,515.40 bbl
Months filed
488
Most wells in a month
5

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 375,896.41 bbl.

MonthOil (bbl)Wells
Apr 2026161.163
Mar 2026155.893
Feb 2026166.923
Nov 2025161.433
Oct 2025151.833
Aug 2025162.093
Jul 2025157.933
May 2025157.473
Apr 2025162.433
Mar 2025158.163
Feb 2025162.293
Dec 2024161.453
Nov 2024160.513
Oct 2024154.183
Sep 2024160.593
Jul 2024159.403
Jun 2024159.073
May 2024159.393
Apr 2024317.673
Mar 2024163.153
Feb 2024154.773
Dec 2023161.363
Nov 2023160.413
Oct 2023160.863
Sep 2023160.023
Aug 2023160.063
Jun 2023156.193
May 2023156.463
Apr 2023156.593
Mar 2023160.553
Feb 2023156.203
Dec 2022157.833
Oct 2022158.023
Sep 2022158.923
Aug 2022161.513
Jul 2022159.443
Jun 2022327.673
May 2022153.743
Apr 2022161.193
Mar 2022160.213
Feb 2022163.343
Jan 2022322.693
Nov 2021166.753
Oct 2021163.353
Aug 2021158.433
Jul 2021159.723
Jun 2021162.993
Apr 2021164.723
Mar 2021161.913
Feb 2021166.783
Jan 2021161.773
Dec 2020162.023
Nov 2020158.423
Oct 2020164.353
Sep 2020162.543
Jul 2020318.113
Jun 2020141.213
Mar 2020169.213
Feb 2020158.723
Jan 2020165.673
Dec 2019162.273
Nov 2019322.313
Oct 2019163.913
Sep 2019156.153
Aug 2019156.683
Jul 2019158.383
Jun 2019156.113
May 2019158.503
Apr 2019161.413
Mar 2019162.373
Feb 2019159.963
Jan 2019324.133
Dec 2018159.533
Oct 2018319.213
Aug 2018160.513
Jul 2018156.223
Jun 2018158.523
May 2018160.573
Apr 2018164.983
Mar 2018327.183
Feb 2018161.583
Jan 2018168.143
Dec 2017159.203
Nov 2017162.483
Oct 2017166.373
Sep 2017323.833
Aug 2017325.763
Jul 2017155.203
Jun 2017153.823
May 2017317.153
Apr 2017322.613
Mar 2017163.393
Dec 2016146.395
Oct 2016162.215
Jul 2016162.235
Apr 2016167.585
Dec 2015169.235
Oct 2015162.295
Aug 2015163.295
May 2015167.665
Mar 2015165.635
Dec 2014167.425
Nov 2014335.725
Oct 2014168.825
Sep 2014167.865
Aug 2014329.875
Jul 2014166.075
Jun 2014171.395
May 2014330.005
Apr 2014330.285
Mar 2014166.295
Feb 2014340.055
Jan 2014168.545
Dec 2013342.485
Nov 2013336.265
Oct 2013167.785
Sep 2013336.385
Aug 2013160.775
Apr 2013135.535
Aug 2012327.385
Jul 2012161.695
Jun 2012330.505
May 2012164.495
Apr 2012165.165
Mar 2012328.175
Feb 2012335.245
Jan 2012168.685
Dec 2011334.215
Nov 2011329.025
Oct 2011329.705
Sep 2011324.933
Aug 2011330.633
Jul 2011163.713
Jun 201110.503
May 2011164.393
Apr 2011167.863
Mar 2011337.913
Feb 2011166.673
Jan 2011338.225
Dec 2010165.265
Nov 2010168.465
Oct 2010158.845
Sep 2010157.965
Jul 2010166.715
Jun 2010158.005
Apr 2010336.595
Mar 2010340.525
Feb 2010169.895
Jan 2010167.255
Dec 2009335.005
Nov 2009166.935
Oct 2009334.085
Sep 2009175.155
Jul 2009166.375
Jun 2009152.505
Apr 2009161.105
Mar 2009168.225
Feb 2009160.695
Jan 2009334.305
Dec 2008171.705
Nov 2008331.095
Oct 2008335.645
Aug 2008340.785
Jul 2008165.595
Jun 2008157.495
May 2008163.085
Apr 2008164.235
Mar 2008175.765
Feb 2008168.735
Jan 2008170.105
Dec 2007170.405
Nov 2007323.035
Oct 2007169.385
Sep 2007166.555
Aug 2007168.415
Jul 2007162.755
Jun 2007164.115
May 2007165.095
Mar 2007168.385
Jan 2007323.325
Dec 2006167.495
Nov 2006165.355
Oct 2006163.195
Sep 2006327.815
Aug 2006164.215
Jul 2006317.615
Jun 2006157.605
May 2006325.715
Apr 2006169.485
Mar 2006164.025
Feb 2006332.745
Jan 2006164.775
Dec 2005332.735
Nov 2005160.165
Oct 2005331.085
Sep 2005163.175
Aug 2005327.995
Jul 2005162.975
Jun 2005312.455
May 2005331.275
Apr 2005165.955
Mar 2005330.975
Feb 2005486.155
Jan 2005164.965
Dec 2004164.425
Nov 2004329.065
Oct 2004326.985
Sep 2004169.955
Aug 2004319.045
Jul 2004317.025
Jun 2004339.525
May 2004169.995
Apr 2004336.695
Mar 2004324.735
Feb 2004335.845
Jan 2004323.945
Dec 2003159.995
Nov 2003498.425
Oct 2003318.495
Sep 2003352.055
Aug 2003160.195
Jul 2003156.625
Jun 2003316.935
May 2003163.055
Apr 2003339.105
Mar 2003162.445
Feb 2003165.935
Jan 2003321.345
Dec 2002168.625
Nov 2002326.125
Oct 2002162.175
Sep 2002320.815
Aug 2002314.805
Jul 2002158.665
Jun 2002326.215
Apr 2002336.585
Mar 2002320.175
Feb 2002165.035
Jan 2002166.175
Dec 2001339.965
Nov 2001173.565
Oct 2001332.965
Sep 2001331.065
Aug 2001156.895
Jul 2001322.304
Jun 2001158.724
May 2001320.904
Apr 2001332.494
Mar 2001159.914
Feb 2001322.354
Jan 2001171.544
Dec 2000326.104
Nov 2000331.904
Oct 2000158.234
Sep 2000315.724
Aug 2000322.944
Jul 2000157.674
Jun 2000334.654
May 2000317.004
Apr 2000326.424
Mar 2000334.294
Feb 2000334.804
Jan 2000160.444
Dec 1999341.674
Nov 1999308.774
Oct 1999162.804
Sep 1999324.145
Aug 1999316.895
Jul 1999311.475
Jun 1999467.995
May 1999332.345
Apr 1999328.985
Mar 1999327.585
Feb 1999475.595
Jan 1999328.155
Dec 1998321.695
Nov 1998486.765
Oct 1998332.795
Sep 1998162.365
Aug 1998324.875
Jul 1998310.095
Jun 1998161.405
May 1998335.155
Apr 1998655.975
Mar 1998157.885
Feb 1998494.505
Jan 1998319.965
Dec 1997494.505
Nov 1997490.315
Oct 1997486.475
Sep 1997486.765
Aug 1997481.395
Jul 1997485.945
Jun 1997487.775
May 1997486.265
Apr 1997480.995
Mar 1997475.815
Feb 1997487.195
Jan 1997498.545
Dec 1996667.215
Nov 1996505.755
Oct 1996498.255
Sep 1996498.265
Aug 1996489.465
Jul 1996483.795
Jun 1996548.035
May 1996640.545
Apr 1996538.975
Mar 1996656.225
Feb 1996645.045
Jan 1996558.825
Dec 1995653.005
Nov 1995682.005
Oct 1995674.005
Sep 1995669.005
Aug 1995671.005
Jul 1995715.005
Jun 1995755.005
May 1995379.002
Apr 1995362.002
Mar 1995390.002
Feb 1995364.002
Jan 1995403.002
Dec 1994386.002
Nov 1994473.002
Oct 1994503.002
Sep 1994367.002
Aug 1994387.002
Jul 1994344.002
Jun 1994345.002
May 1994374.002
Apr 1994569.002
Mar 1994625.002
Feb 1994388.002
Jan 1994745.002
Dec 1993628.002
Nov 1993596.002
Oct 1993687.002
Sep 1993741.002
Aug 1993766.002
Jul 1993852.002
Jun 1993975.002
May 19931,078.002
Apr 19931,178.002
Mar 19931,618.002
Feb 19931,830.002
Jan 19931,251.002
Dec 1992727.002
Nov 1992664.002
Oct 1992741.002
Sep 1992759.002
Aug 1992782.002
Jul 1992840.002
Jun 1992713.002
May 1992751.002
Apr 1992747.002
Mar 1992798.002
Feb 1992654.002
Jan 1992753.002
Dec 1991646.002
Nov 1991891.002
Oct 1991885.002
Sep 1991591.002
Aug 1991581.002
Jul 1991687.002
Jun 1991770.002
May 1991818.002
Apr 19911,035.002
Jan 19911,294.002
Dec 19901,128.002
Nov 19901,886.002
Oct 19902,263.002
Sep 19902,325.002
Aug 19901,954.002
Jul 1990142.002
Jun 1990150.002
May 19901,523.002
Apr 19901,614.002
Mar 19901,330.002
Feb 19901,290.002
Jan 1990836.002
Dec 1989654.002
Nov 19891,318.002
Oct 19891,768.002
Sep 19891,705.002
Aug 19891,934.002
Jul 19891,868.002
Jun 1989996.002
May 19893,042.002
Apr 19893,570.002
Feb 198959.002
Jan 19891,031.002
Dec 19882,937.002
Sep 1988232.002
Aug 1988286.002
Jul 1988146.002
Jun 1988218.002
May 1988219.002
Apr 1988202.002
Mar 1988216.002
Feb 1988243.002
Jan 1988327.002
Dec 1987345.002
Nov 1987261.002
Oct 1987233.002
Sep 1987189.002
Aug 1987276.002
Jul 1987291.002
Sep 1986301.002
Aug 1986324.002
Jul 1986229.002
Jun 1986317.002
May 1986332.002
Apr 1986305.002
Mar 1986318.002
Feb 1986272.002
Jan 198656.002
Dec 1985241.002
Nov 1985281.002
Oct 1985435.002
Sep 1985484.002
Aug 1985335.002
Jul 1985385.002
Jun 1985377.002
May 1985373.002
Apr 1985461.002
Mar 1985438.002
Feb 1985491.002
Jan 1985398.002
Dec 1984393.002
Nov 1984388.002
Oct 1984398.002
Sep 1984388.002
Aug 1984426.002
Jul 1984458.002
Jun 1984444.002
May 1984459.002
Apr 1984454.002
Mar 1984539.002
Feb 1984516.002
Jan 1984570.002
Dec 1983461.002
Nov 1983445.002
Oct 1983570.002
Sep 1983460.002
Aug 1983470.002
Jul 1983482.002
Jun 1983453.002
May 1983503.002
Apr 1983457.002
Mar 1983614.002
Feb 1983769.002
Jan 1983694.002
Dec 1982672.002
Nov 1982660.002
Oct 1982692.002
Sep 1982750.002
Aug 1982742.002
Jul 1982763.002
Jun 1982710.002
May 1982864.002
Apr 1982766.002
Mar 1982874.002
Feb 1982664.002
Jan 1982649.002
Dec 1981827.002
Nov 1981816.002
Oct 19811,064.002
Sep 1981882.002
Aug 19811,197.002
Jul 1981952.002
Jun 1981962.002
Apr 1981823.002
Mar 1981741.002
Feb 1981279.002
Jan 19811,068.002
Dec 19801,025.002
Nov 19801,065.002
Oct 1980954.002
Sep 1980981.002
Aug 19801,243.002
Jul 19801,273.002
Jun 19801,248.002
May 1980894.002
Apr 19801,172.002
Mar 19801,544.002
Feb 19801,358.002
Jan 19801,476.002

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

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

WellNo.OperatorStatus
Sara Sleeper1Vamco OperationsProducing
Sara Sleeper2unavailableConverted to SWD Well
Sara Sleeper2Vamco OperationsAuthorized Injection Well
Sara Sleeper3 TWINunavailable—
SARA SLEEPER3Vamco OperationsProducing
Sara Sleeper4Vamco OperationsProducing

Location

38.166379, -98.535737 · Sec 4 T22S R11W

Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001175872. The state’s own record.