SLEEPER-DEWERFF UNIT 'A'
Lease 1020123742 · Lane County, Kansas · Sec 18 T19S R27W · DOR 135029
Oil2000–20251 well
Operator
Belport Oil, Inc.
Cumulative (state figure)
44,679.96 bbl
First production
2000
Last production
2025
Location (PLSS)
Sec 18 T19S R27W
Monthly oil production
161 months filed with the Kansas Geological Survey, May 2000 to May 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
44,680.00 bbl
Months filed
161
Most wells in a month
1
| Month | Oil (bbl) | Wells |
|---|---|---|
| May 2025 | 162.31 | 1 |
| May 2024 | 156.99 | 1 |
| Nov 2023 | 156.84 | 1 |
| Jul 2023 | 154.94 | 1 |
| Feb 2023 | 158.17 | 1 |
| Jul 2022 | 156.96 | 1 |
| Feb 2022 | 157.20 | 1 |
| Oct 2021 | 158.64 | 1 |
| Jun 2021 | 154.25 | 1 |
| Feb 2021 | 147.92 | 1 |
| Jun 2020 | 159.54 | 1 |
| Dec 2019 | 162.53 | 1 |
| Jun 2019 | 157.59 | 1 |
| Feb 2019 | 153.09 | 1 |
| Oct 2018 | 161.41 | 1 |
| Jun 2018 | 160.06 | 1 |
| Feb 2018 | 159.66 | 1 |
| Oct 2017 | 155.84 | 1 |
| Jun 2017 | 157.98 | 1 |
| Mar 2017 | 152.29 | 1 |
| Dec 2016 | 164.55 | 1 |
| Sep 2016 | 163.18 | 1 |
| May 2016 | 154.38 | 1 |
| Mar 2016 | 159.43 | 1 |
| Dec 2015 | 154.23 | 1 |
| Sep 2015 | 157.79 | 1 |
| Jun 2015 | 155.28 | 1 |
| Mar 2015 | 156.56 | 1 |
| Jan 2015 | 168.84 | 1 |
| Sep 2014 | 151.63 | 1 |
| Jul 2014 | 155.43 | 1 |
| Apr 2014 | 158.06 | 1 |
| Feb 2014 | 156.92 | 1 |
| Nov 2013 | 155.81 | 1 |
| Sep 2013 | 156.75 | 1 |
| Jul 2013 | 40.08 | 1 |
| Jun 2013 | 160.99 | 1 |
| Mar 2013 | 141.77 | 1 |
| Jan 2013 | 164.59 | 1 |
| Nov 2012 | 163.37 | 1 |
| Aug 2012 | 150.49 | 1 |
| Jun 2012 | 162.18 | 1 |
| Apr 2012 | 155.22 | 1 |
| Feb 2012 | 162.53 | 1 |
| Dec 2011 | 152.09 | 1 |
| Sep 2011 | 154.76 | 1 |
| Jul 2011 | 143.02 | 1 |
| May 2011 | 156.67 | 1 |
| Mar 2011 | 159.93 | 1 |
| Dec 2010 | 180.87 | 1 |
| Oct 2010 | 142.71 | 1 |
| Sep 2010 | 156.89 | 1 |
| Jul 2010 | 156.09 | 1 |
| May 2010 | 151.25 | 1 |
| Apr 2010 | 154.02 | 1 |
| Feb 2010 | 155.06 | 1 |
| Jan 2010 | 148.53 | 1 |
| Nov 2009 | 153.97 | 1 |
| Sep 2009 | 159.34 | 1 |
| Aug 2009 | 159.20 | 1 |
| Jun 2009 | 160.62 | 1 |
| May 2009 | 163.41 | 1 |
| Mar 2009 | 157.05 | 1 |
| Feb 2009 | 159.98 | 1 |
| Jan 2009 | 158.55 | 1 |
| Nov 2008 | 164.98 | 1 |
| Sep 2008 | 160.59 | 1 |
| Aug 2008 | 160.67 | 1 |
| Jul 2008 | 156.76 | 1 |
| May 2008 | 158.92 | 1 |
| Apr 2008 | 160.60 | 1 |
| Mar 2008 | 161.34 | 1 |
| Jan 2008 | 174.68 | 1 |
| Dec 2007 | 163.55 | 1 |
| Oct 2007 | 153.06 | 1 |
| Sep 2007 | 153.71 | 1 |
| Aug 2007 | 155.55 | 1 |
| Jul 2007 | 154.20 | 1 |
| Jun 2007 | 150.68 | 1 |
| May 2007 | 149.20 | 1 |
| Apr 2007 | 142.96 | 1 |
| Mar 2007 | 143.12 | 1 |
| Feb 2007 | 153.45 | 1 |
| Nov 2006 | 146.38 | 1 |
| Oct 2006 | 152.61 | 1 |
| Sep 2006 | 156.47 | 1 |
| Aug 2006 | 152.97 | 1 |
| Jul 2006 | 152.78 | 1 |
| Jun 2006 | 149.84 | 1 |
| May 2006 | 156.72 | 1 |
| Apr 2006 | 152.09 | 1 |
| Mar 2006 | 150.65 | 1 |
| Feb 2006 | 146.75 | 1 |
| Jan 2006 | 151.05 | 1 |
| Dec 2005 | 158.64 | 1 |
| Nov 2005 | 155.21 | 1 |
| Oct 2005 | 157.37 | 1 |
| Sep 2005 | 159.48 | 1 |
| Aug 2005 | 159.86 | 1 |
| Jul 2005 | 157.99 | 1 |
| Jun 2005 | 163.26 | 1 |
| May 2005 | 159.32 | 1 |
| Apr 2005 | 316.82 | 1 |
| Mar 2005 | 162.60 | 1 |
| Feb 2005 | 152.39 | 1 |
| Jan 2005 | 156.92 | 1 |
| Dec 2004 | 155.24 | 1 |
| Nov 2004 | 155.57 | 1 |
| Oct 2004 | 163.97 | 1 |
| Sep 2004 | 315.31 | 1 |
| Aug 2004 | 161.49 | 1 |
| Jul 2004 | 320.76 | 1 |
| Jun 2004 | 161.34 | 1 |
| May 2004 | 162.03 | 1 |
| Apr 2004 | 324.55 | 1 |
| Mar 2004 | 164.30 | 1 |
| Feb 2004 | 166.02 | 1 |
| Jan 2004 | 313.25 | 1 |
| Dec 2003 | 317.55 | 1 |
| Nov 2003 | 165.84 | 1 |
| Oct 2003 | 313.59 | 1 |
| Sep 2003 | 152.01 | 1 |
| Aug 2003 | 320.69 | 1 |
| Jul 2003 | 322.53 | 1 |
| Jun 2003 | 325.90 | 1 |
| May 2003 | 347.47 | 1 |
| Apr 2003 | 311.69 | 1 |
| Mar 2003 | 324.61 | 1 |
| Feb 2003 | 165.51 | 1 |
| Jan 2003 | 301.60 | 1 |
| Dec 2002 | 488.08 | 1 |
| Nov 2002 | 319.72 | 1 |
| Oct 2002 | 327.19 | 1 |
| Sep 2002 | 487.86 | 1 |
| Aug 2002 | 327.62 | 1 |
| Jul 2002 | 484.16 | 1 |
| Jun 2002 | 482.41 | 1 |
| May 2002 | 478.59 | 1 |
| Apr 2002 | 480.03 | 1 |
| Mar 2002 | 324.78 | 1 |
| Feb 2002 | 318.97 | 1 |
| Jan 2002 | 487.12 | 1 |
| Dec 2001 | 495.95 | 1 |
| Nov 2001 | 481.06 | 1 |
| Oct 2001 | 656.57 | 1 |
| Sep 2001 | 649.35 | 1 |
| Aug 2001 | 646.23 | 1 |
| Jun 2001 | 805.99 | 1 |
| May 2001 | 972.91 | 1 |
| Apr 2001 | 975.76 | 1 |
| Mar 2001 | 981.35 | 1 |
| Feb 2001 | 813.43 | 1 |
| Jan 2001 | 1,168.54 | 1 |
| Dec 2000 | 1,323.75 | 1 |
| Nov 2000 | 1,643.00 | 1 |
| Oct 2000 | 1,457.76 | 1 |
| Sep 2000 | 633.86 | 1 |
| Aug 2000 | 644.73 | 1 |
| Jul 2000 | 1,119.94 | 1 |
| Jun 2000 | 1,300.05 | 1 |
| May 2000 | 325.91 | 1 |
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
1 well the state's well register assigns to this lease. Every one has a page.
| Well | No. | Operator | Status |
|---|---|---|---|
| SLEEPER-DEWERFF UNIT 'A' | 1 | Belport Oil, Inc. | Producing |
Location
38.400816, -100.345379 · Sec 18 T19S R27W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1020123742. The state’s own record.