TOMBAUGH EST A
Lease 1001119444 · Pawnee County, Kansas · CNWNW Sec 6 T21S R20W · DOR 109540
Oil1971–20261 well
Operator
Downing-Nelson Oil Co Inc
Cumulative (state figure)
65,118.20 bbl
First production
1971
Last production
2026
Location (PLSS)
CNWNW Sec 6 T21S R20W
Monthly oil production
207 months filed with the Kansas Geological Survey, Jan 1980 to Mar 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
33,109.20 bbl
Months filed
207
Most wells in a month
1
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 65,118.20 bbl.
| Month | Oil (bbl) | Wells |
|---|---|---|
| Mar 2026 | 156.05 | 1 |
| Dec 2025 | 160.82 | 1 |
| Sep 2025 | 148.85 | 1 |
| May 2025 | 158.58 | 1 |
| Jan 2025 | 153.78 | 1 |
| May 2024 | 158.25 | 1 |
| Feb 2024 | 153.18 | 1 |
| Nov 2023 | 151.84 | 1 |
| Jul 2023 | 151.76 | 1 |
| Apr 2023 | 154.04 | 1 |
| Jan 2023 | 152.92 | 1 |
| Sep 2022 | 158.94 | 1 |
| Jun 2022 | 154.32 | 1 |
| Feb 2022 | 159.23 | 1 |
| Oct 2021 | 156.12 | 1 |
| Jun 2021 | 154.00 | 1 |
| Mar 2021 | 162.93 | 1 |
| Nov 2020 | 155.07 | 1 |
| Jun 2020 | 158.00 | 1 |
| Feb 2020 | 150.02 | 1 |
| Nov 2019 | 151.65 | 1 |
| Jul 2019 | 155.42 | 1 |
| Apr 2019 | 156.69 | 1 |
| Jan 2019 | 153.93 | 1 |
| Sep 2018 | 156.96 | 1 |
| May 2018 | 161.37 | 1 |
| Jan 2018 | 146.57 | 1 |
| Nov 2017 | 152.61 | 1 |
| Jul 2017 | 222.08 | 1 |
| Apr 2017 | 152.46 | 1 |
| Jan 2017 | 147.18 | 1 |
| Sep 2016 | 152.32 | 1 |
| Jun 2016 | 159.35 | 1 |
| Mar 2016 | 154.97 | 1 |
| Dec 2015 | 149.89 | 1 |
| Sep 2015 | 151.12 | 1 |
| May 2015 | 155.10 | 1 |
| Feb 2015 | 156.97 | 1 |
| Nov 2014 | 160.57 | 1 |
| Jul 2014 | 157.34 | 1 |
| Apr 2014 | 163.75 | 1 |
| Jan 2014 | 156.45 | 1 |
| Oct 2013 | 159.33 | 1 |
| Jul 2013 | 162.19 | 1 |
| May 2013 | 165.58 | 1 |
| Jan 2013 | 183.17 | 1 |
| Oct 2012 | 153.18 | 1 |
| Jul 2012 | 150.00 | 1 |
| Mar 2012 | 156.25 | 1 |
| Jan 2012 | 160.24 | 1 |
| Oct 2011 | 159.98 | 1 |
| Jul 2011 | 158.90 | 1 |
| Apr 2011 | 163.94 | 1 |
| Feb 2011 | 153.77 | 1 |
| Nov 2010 | 159.49 | 1 |
| Aug 2010 | 158.38 | 1 |
| Jun 2010 | 158.55 | 1 |
| Mar 2010 | 151.41 | 1 |
| Jan 2010 | 157.44 | 1 |
| Nov 2009 | 158.07 | 1 |
| Aug 2009 | 128.23 | 1 |
| Jul 2009 | 157.86 | 1 |
| Apr 2009 | 158.82 | 1 |
| Jan 2009 | 186.18 | 1 |
| Oct 2008 | 168.35 | 1 |
| Aug 2008 | 171.58 | 1 |
| Apr 2008 | 158.87 | 1 |
| Feb 2008 | 165.65 | 1 |
| Aug 2007 | 164.37 | 1 |
| May 2007 | 166.40 | 1 |
| Feb 2007 | 168.59 | 1 |
| Sep 2006 | 161.56 | 1 |
| Jun 2006 | 160.20 | 1 |
| Mar 2006 | 159.54 | 1 |
| Dec 2005 | 160.61 | 1 |
| Sep 2005 | 156.61 | 1 |
| Jun 2005 | 165.10 | 1 |
| Mar 2005 | 151.13 | 1 |
| Dec 2004 | 159.17 | 1 |
| Sep 2004 | 164.19 | 1 |
| Jun 2004 | 163.37 | 1 |
| Apr 2004 | 160.19 | 1 |
| Feb 2004 | 164.16 | 1 |
| Oct 2003 | 158.91 | 1 |
| Jul 2003 | 169.12 | 1 |
| Apr 2003 | 156.08 | 1 |
| Jan 2003 | 157.63 | 1 |
| Nov 2002 | 170.16 | 1 |
| Aug 2002 | 157.16 | 1 |
| May 2002 | 155.86 | 1 |
| Feb 2002 | 155.20 | 1 |
| Dec 2001 | 165.27 | 1 |
| Aug 2001 | 159.67 | 1 |
| Jun 2001 | 169.93 | 1 |
| Mar 2001 | 152.40 | 1 |
| Jan 2001 | 159.67 | 1 |
| Oct 2000 | 158.37 | 1 |
| Aug 2000 | 162.92 | 1 |
| Jun 2000 | 159.32 | 1 |
| Apr 2000 | 160.36 | 1 |
| Jan 2000 | 315.60 | 1 |
| Oct 1999 | 161.80 | 1 |
| Aug 1999 | 165.95 | 1 |
| Jun 1999 | 163.32 | 1 |
| Dec 1997 | 159.50 | 1 |
| Aug 1997 | 150.50 | 1 |
| Apr 1997 | 173.60 | 1 |
| Jan 1997 | 174.51 | 1 |
| Oct 1996 | 173.09 | 1 |
| Jul 1996 | 175.56 | 1 |
| Apr 1996 | 174.47 | 1 |
| Feb 1996 | 159.22 | 1 |
| Nov 1995 | 157.00 | 1 |
| Sep 1995 | 78.00 | 1 |
| Aug 1995 | 175.00 | 1 |
| May 1995 | 174.00 | 1 |
| Mar 1995 | 160.00 | 1 |
| Dec 1994 | 74.00 | 1 |
| Nov 1994 | 199.00 | 1 |
| Sep 1994 | 167.00 | 1 |
| Jul 1994 | 161.00 | 1 |
| Dec 1993 | 152.00 | 1 |
| Sep 1993 | 166.00 | 1 |
| Jul 1993 | 135.00 | 1 |
| May 1993 | 164.00 | 1 |
| Apr 1993 | 161.00 | 1 |
| Feb 1993 | 87.00 | 1 |
| Nov 1992 | 163.00 | 1 |
| Aug 1992 | 163.00 | 1 |
| Jun 1992 | 162.00 | 1 |
| Mar 1992 | 163.00 | 1 |
| Jan 1992 | 163.00 | 1 |
| Nov 1991 | 160.00 | 1 |
| Aug 1991 | 163.00 | 1 |
| Jun 1991 | 164.00 | 1 |
| Apr 1991 | 159.00 | 1 |
| Feb 1991 | 163.00 | 1 |
| Nov 1990 | 162.00 | 1 |
| Sep 1990 | 165.00 | 1 |
| Jul 1990 | 160.00 | 1 |
| May 1990 | 165.00 | 1 |
| Mar 1990 | 162.00 | 1 |
| Jan 1990 | 160.00 | 1 |
| Nov 1989 | 162.00 | 1 |
| Aug 1989 | 165.00 | 1 |
| Jun 1989 | 162.00 | 1 |
| Apr 1989 | 164.00 | 1 |
| Feb 1989 | 156.00 | 1 |
| Dec 1988 | 165.00 | 1 |
| Oct 1988 | 163.00 | 1 |
| Aug 1988 | 166.00 | 1 |
| Jun 1988 | 160.00 | 1 |
| Apr 1988 | 162.00 | 1 |
| Feb 1988 | 161.00 | 1 |
| Dec 1987 | 162.00 | 1 |
| Oct 1987 | 174.00 | 1 |
| Aug 1987 | 161.00 | 1 |
| Jun 1987 | 161.00 | 1 |
| Apr 1987 | 164.00 | 1 |
| Mar 1987 | 156.00 | 1 |
| Jan 1987 | 159.00 | 1 |
| Nov 1986 | 158.00 | 1 |
| Sep 1986 | 163.00 | 1 |
| Jul 1986 | 160.00 | 1 |
| May 1986 | 164.00 | 1 |
| Mar 1986 | 155.00 | 1 |
| Jan 1986 | 156.00 | 1 |
| Dec 1985 | 144.00 | 1 |
| Aug 1985 | 138.00 | 1 |
| Jun 1985 | 167.00 | 1 |
| Apr 1985 | 157.00 | 1 |
| Feb 1985 | 162.00 | 1 |
| Dec 1984 | 162.00 | 1 |
| Oct 1984 | 165.00 | 1 |
| Aug 1984 | 162.00 | 1 |
| May 1984 | 159.00 | 1 |
| Apr 1984 | 160.00 | 1 |
| Feb 1984 | 163.00 | 1 |
| Jan 1984 | 157.00 | 1 |
| Nov 1983 | 168.00 | 1 |
| Aug 1983 | 153.00 | 1 |
| Jun 1983 | 161.00 | 1 |
| May 1983 | 160.00 | 1 |
| Mar 1983 | 165.00 | 1 |
| Jan 1983 | 163.00 | 1 |
| Nov 1982 | 161.00 | 1 |
| Sep 1982 | 163.00 | 1 |
| Jul 1982 | 164.00 | 1 |
| May 1982 | 161.00 | 1 |
| Apr 1982 | 163.00 | 1 |
| Feb 1982 | 170.00 | 1 |
| Jan 1982 | 152.00 | 1 |
| Nov 1981 | 162.00 | 1 |
| Sep 1981 | 167.00 | 1 |
| Jul 1981 | 162.00 | 1 |
| Jun 1981 | 129.00 | 1 |
| Apr 1981 | 164.00 | 1 |
| Feb 1981 | 164.00 | 1 |
| Jan 1981 | 162.00 | 1 |
| Nov 1980 | 168.00 | 1 |
| Sep 1980 | 157.00 | 1 |
| Aug 1980 | 166.00 | 1 |
| Jun 1980 | 161.00 | 1 |
| May 1980 | 167.00 | 1 |
| Apr 1980 | 122.00 | 1 |
| Mar 1980 | 163.00 | 1 |
| Jan 1980 | 160.00 | 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 |
|---|---|---|---|
| Tombaugh Estate 'A' | 1 | Downing-Nelson Oil Co Inc | Producing |
Location
38.260383, -99.567882 · CNWNW Sec 6 T21S R20W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001119444. The state’s own record.