DUNLAP
Lease 1001109228 · Greenwood County, Kansas · NE Sec 9 T25S R9E · DOR 102303
Oil1965–202612 wells
Operator
Massey, Gary R.
Cumulative (state figure)
180,956.08 bbl
First production
1965
Last production
2026
Location (PLSS)
NE Sec 9 T25S R9E
Monthly oil production
459 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
51,888.10 bbl
Months filed
459
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 180,956.08 bbl.
| Month | Oil (bbl) | Wells |
|---|---|---|
| Mar 2026 | 77.89 | 1 |
| Jan 2026 | 76.26 | 1 |
| Sep 2025 | 78.06 | 1 |
| Aug 2025 | 99.38 | 1 |
| Jun 2025 | 78.32 | 1 |
| May 2025 | 78.72 | 1 |
| Apr 2025 | 80.33 | 1 |
| Feb 2025 | 79.90 | 1 |
| Dec 2024 | 122.93 | 1 |
| Nov 2024 | 81.05 | 1 |
| Sep 2024 | 79.30 | 1 |
| Jul 2024 | 79.58 | 1 |
| Jun 2024 | 76.64 | 1 |
| May 2024 | 146.39 | 1 |
| Apr 2024 | 29.82 | 1 |
| Feb 2024 | 78.07 | 1 |
| Dec 2023 | 144.85 | 1 |
| Nov 2023 | 79.75 | 1 |
| Sep 2023 | 79.75 | 1 |
| Aug 2023 | 51.41 | 1 |
| Jun 2023 | 58.06 | 1 |
| May 2023 | 79.23 | 1 |
| Feb 2023 | 80.95 | 1 |
| Dec 2022 | 66.05 | 1 |
| Oct 2022 | 81.06 | 1 |
| Aug 2022 | 75.11 | 1 |
| Jul 2022 | 90.17 | 1 |
| Jun 2022 | 48.73 | 1 |
| Apr 2022 | 63.56 | 1 |
| Dec 2021 | 59.86 | 1 |
| Nov 2021 | 81.80 | 1 |
| Sep 2021 | 80.21 | 1 |
| Jul 2021 | 67.00 | 1 |
| Jun 2021 | 49.18 | 1 |
| Apr 2021 | 37.78 | 1 |
| Mar 2021 | 51.09 | 1 |
| Feb 2021 | 44.60 | 1 |
| Jan 2021 | 81.85 | 1 |
| Nov 2020 | 75.93 | 1 |
| Oct 2020 | 38.55 | 1 |
| Aug 2020 | 67.17 | 1 |
| Jul 2020 | 46.35 | 1 |
| Jun 2020 | 95.25 | 1 |
| Feb 2020 | 35.32 | 1 |
| Jan 2020 | 27.91 | 1 |
| Dec 2019 | 29.87 | 1 |
| Nov 2019 | 46.30 | 1 |
| Oct 2019 | 46.76 | 1 |
| Sep 2019 | 41.86 | 1 |
| Jul 2019 | 40.29 | 1 |
| May 2019 | 55.84 | 1 |
| Mar 2019 | 18.27 | 1 |
| Feb 2019 | 72.35 | 1 |
| Nov 2018 | 17.31 | 1 |
| Oct 2018 | 24.18 | 1 |
| Sep 2018 | 28.76 | 1 |
| Jul 2018 | 20.01 | 1 |
| Jun 2018 | 19.58 | 1 |
| May 2018 | 24.23 | 1 |
| Apr 2018 | 20.57 | 1 |
| Mar 2018 | 22.58 | 1 |
| Feb 2018 | 22.20 | 1 |
| Jan 2018 | 36.75 | 1 |
| Nov 2017 | 21.38 | 1 |
| Oct 2017 | 18.61 | 1 |
| Sep 2017 | 19.56 | 1 |
| Aug 2017 | 41.30 | 1 |
| Jun 2017 | 43.44 | 1 |
| Apr 2017 | 23.42 | 1 |
| Mar 2017 | 19.51 | 1 |
| Feb 2017 | 25.46 | 1 |
| Jan 2017 | 22.00 | 1 |
| Dec 2016 | 19.45 | 1 |
| Nov 2016 | 22.22 | 1 |
| Oct 2016 | 21.09 | 1 |
| Sep 2016 | 21.10 | 1 |
| Aug 2016 | 21.91 | 1 |
| Jul 2016 | 20.50 | 1 |
| Jun 2016 | 32.80 | 2 |
| Apr 2016 | 32.85 | 2 |
| Sep 2015 | 39.74 | 2 |
| Jul 2015 | 21.09 | 2 |
| Jun 2015 | 17.97 | 2 |
| May 2015 | 59.98 | 2 |
| Mar 2015 | 25.90 | 2 |
| Feb 2015 | 24.49 | 2 |
| Jan 2015 | 19.39 | 2 |
| Dec 2014 | 29.45 | 2 |
| Nov 2014 | 26.68 | 2 |
| Oct 2014 | 22.82 | 2 |
| Sep 2014 | 22.00 | 2 |
| Aug 2014 | 28.76 | 2 |
| Jul 2014 | 26.44 | 2 |
| Jun 2014 | 19.82 | 2 |
| May 2014 | 12.32 | 2 |
| Apr 2014 | 32.92 | 2 |
| Mar 2014 | 28.16 | 2 |
| Feb 2014 | 28.00 | 2 |
| Jan 2014 | 23.72 | 2 |
| Dec 2013 | 17.84 | 2 |
| Nov 2013 | 34.58 | 2 |
| Oct 2013 | 26.95 | 2 |
| Sep 2013 | 30.60 | 2 |
| Aug 2013 | 27.25 | 2 |
| Jul 2013 | 31.83 | 2 |
| Jun 2013 | 28.24 | 2 |
| May 2013 | 33.14 | 2 |
| Apr 2013 | 27.89 | 2 |
| Mar 2013 | 33.20 | 2 |
| Feb 2013 | 20.43 | 2 |
| Jan 2013 | 35.70 | 3 |
| Dec 2012 | 28.30 | 3 |
| Nov 2012 | 30.80 | 3 |
| Oct 2012 | 32.01 | 3 |
| Sep 2012 | 25.29 | 3 |
| Aug 2012 | 38.42 | 3 |
| Jul 2012 | 38.17 | 3 |
| Jun 2012 | 37.04 | 3 |
| May 2012 | 31.89 | 3 |
| Apr 2012 | 34.86 | 3 |
| Mar 2012 | 42.57 | 3 |
| Feb 2012 | 44.20 | 3 |
| Jan 2012 | 71.16 | 3 |
| Nov 2011 | 29.27 | 3 |
| Oct 2011 | 48.49 | 3 |
| Sep 2011 | 37.46 | 3 |
| Aug 2011 | 38.96 | 3 |
| Jul 2011 | 29.19 | 3 |
| Jun 2011 | 25.13 | 3 |
| May 2011 | 47.69 | 3 |
| Apr 2011 | 64.20 | 3 |
| Feb 2011 | 76.32 | 3 |
| Dec 2010 | 29.93 | 3 |
| Nov 2010 | 69.69 | 3 |
| Sep 2010 | 62.56 | 3 |
| Jul 2010 | 23.08 | 3 |
| Nov 2009 | 48.45 | 3 |
| Sep 2009 | 37.75 | 3 |
| Aug 2009 | 54.05 | 3 |
| Jun 2009 | 38.50 | 3 |
| May 2009 | 82.52 | 3 |
| Jan 2009 | 73.57 | 3 |
| Nov 2008 | 30.79 | 3 |
| Oct 2008 | 69.11 | 3 |
| Jul 2008 | 77.51 | 3 |
| May 2008 | 63.31 | 3 |
| Mar 2008 | 66.08 | 3 |
| Jan 2008 | 78.14 | 3 |
| Nov 2007 | 51.42 | 3 |
| Sep 2007 | 23.23 | 3 |
| Aug 2007 | 40.94 | 3 |
| Jul 2007 | 41.71 | 3 |
| Jun 2007 | 42.41 | 3 |
| May 2007 | 45.70 | 3 |
| Apr 2007 | 40.99 | 3 |
| Mar 2007 | 49.86 | 3 |
| Feb 2007 | 54.95 | 3 |
| Jan 2007 | 40.68 | 3 |
| Dec 2006 | 35.80 | 3 |
| Nov 2006 | 14.18 | 3 |
| Oct 2006 | 45.21 | 3 |
| Sep 2006 | 12.17 | 3 |
| May 2006 | 6.73 | 3 |
| Mar 2006 | 77.19 | 3 |
| Jan 2006 | 39.51 | 3 |
| Dec 2005 | 49.43 | 3 |
| Nov 2005 | 63.01 | 3 |
| Oct 2005 | 43.40 | 3 |
| Sep 2005 | 44.21 | 3 |
| Aug 2005 | 56.60 | 3 |
| Jul 2005 | 55.68 | 3 |
| Jun 2005 | 46.75 | 3 |
| May 2005 | 52.03 | 3 |
| Apr 2005 | 40.40 | 3 |
| Mar 2005 | 54.01 | 3 |
| Feb 2005 | 82.27 | 3 |
| Dec 2004 | 64.37 | 3 |
| Nov 2004 | 76.79 | 3 |
| Oct 2004 | 52.96 | 3 |
| Sep 2004 | 99.12 | 3 |
| Aug 2004 | 32.81 | 3 |
| Jul 2004 | 80.42 | 3 |
| Jun 2004 | 77.64 | 3 |
| May 2004 | 54.75 | 3 |
| Apr 2004 | 69.24 | 3 |
| Mar 2004 | 77.82 | 3 |
| Feb 2004 | 81.74 | 3 |
| Jan 2004 | 99.68 | 3 |
| Dec 2003 | 163.61 | 3 |
| Nov 2003 | 141.04 | 3 |
| Oct 2003 | 153.86 | 3 |
| Sep 2003 | 138.35 | 3 |
| Aug 2003 | 156.17 | 3 |
| Jul 2003 | 139.26 | 3 |
| Jun 2003 | 151.45 | 3 |
| May 2003 | 131.26 | 3 |
| Apr 2003 | 204.86 | 3 |
| Mar 2003 | 129.86 | 3 |
| Feb 2003 | 103.10 | 3 |
| Jan 2003 | 230.98 | 3 |
| Dec 2002 | 134.85 | 3 |
| Nov 2002 | 180.24 | 3 |
| Oct 2002 | 109.97 | 3 |
| Sep 2002 | 142.42 | 3 |
| Aug 2002 | 184.75 | 3 |
| Jul 2002 | 148.29 | 3 |
| Jun 2002 | 154.19 | 3 |
| May 2002 | 212.64 | 3 |
| Apr 2002 | 149.37 | 3 |
| Mar 2002 | 80.71 | 3 |
| Feb 2002 | 150.60 | 3 |
| Jan 2002 | 229.19 | 3 |
| Dec 2001 | 164.51 | 3 |
| Nov 2001 | 159.95 | 3 |
| Oct 2001 | 168.62 | 3 |
| Sep 2001 | 313.45 | 3 |
| Aug 2001 | 81.01 | 3 |
| Jul 2001 | 233.06 | 3 |
| Jun 2001 | 162.29 | 3 |
| May 2001 | 229.02 | 3 |
| Apr 2001 | 207.47 | 3 |
| Mar 2001 | 163.43 | 3 |
| Feb 2001 | 320.12 | 3 |
| Jan 2001 | 163.74 | 3 |
| Dec 2000 | 157.19 | 3 |
| Nov 2000 | 218.78 | 3 |
| Oct 2000 | 231.52 | 3 |
| Sep 2000 | 311.61 | 3 |
| Aug 2000 | 154.06 | 3 |
| Jul 2000 | 240.79 | 3 |
| Jun 2000 | 338.01 | 3 |
| May 2000 | 151.78 | 3 |
| Apr 2000 | 244.45 | 3 |
| Mar 2000 | 244.36 | 3 |
| Feb 2000 | 258.98 | 3 |
| Jan 2000 | 483.74 | 3 |
| Dec 1999 | 275.55 | 3 |
| Nov 1999 | 331.94 | 3 |
| Oct 1999 | 160.04 | 3 |
| Sep 1999 | 264.13 | 3 |
| Aug 1999 | 294.00 | 3 |
| Jul 1999 | 280.47 | 3 |
| Jun 1999 | 287.88 | 3 |
| May 1999 | 291.04 | 3 |
| Apr 1999 | 326.18 | 3 |
| Mar 1999 | 327.43 | 3 |
| Feb 1999 | 325.07 | 3 |
| Jan 1999 | 331.85 | 3 |
| Dec 1998 | 334.17 | 3 |
| Nov 1998 | 329.99 | 3 |
| Oct 1998 | 325.42 | 3 |
| Sep 1998 | 433.51 | 3 |
| Aug 1998 | 405.51 | 3 |
| Jul 1998 | 406.03 | 3 |
| Jun 1998 | 396.23 | 3 |
| May 1998 | 398.37 | 3 |
| Apr 1998 | 489.59 | 3 |
| Mar 1998 | 430.81 | 3 |
| Feb 1998 | 496.32 | 3 |
| Jan 1998 | 497.71 | 3 |
| Dec 1997 | 493.71 | 3 |
| Nov 1997 | 494.54 | 3 |
| Oct 1997 | 491.98 | 3 |
| Sep 1997 | 488.87 | 3 |
| Aug 1997 | 411.85 | 3 |
| Jul 1997 | 324.10 | 3 |
| Jun 1997 | 408.41 | 3 |
| May 1997 | 250.55 | 3 |
| Apr 1997 | 80.35 | 3 |
| Feb 1997 | 81.11 | 3 |
| Nov 1996 | 71.95 | 3 |
| Oct 1996 | 83.06 | 3 |
| Aug 1996 | 80.55 | 3 |
| Jul 1996 | 81.62 | 3 |
| Jun 1996 | 82.31 | 3 |
| Apr 1996 | 80.92 | 3 |
| Mar 1996 | 81.41 | 3 |
| Feb 1996 | 82.54 | 3 |
| Dec 1995 | 81.00 | 3 |
| Nov 1995 | 80.00 | 3 |
| Oct 1995 | 81.00 | 3 |
| Aug 1995 | 79.00 | 3 |
| Jul 1995 | 80.00 | 3 |
| Jun 1995 | 79.00 | 3 |
| Apr 1995 | 80.00 | 3 |
| Mar 1995 | 79.00 | 3 |
| Feb 1995 | 81.00 | 3 |
| Jan 1995 | 81.00 | 3 |
| Nov 1994 | 82.00 | 3 |
| Oct 1994 | 81.00 | 3 |
| Sep 1994 | 81.00 | 3 |
| Aug 1994 | 81.00 | 3 |
| Jun 1994 | 80.00 | 3 |
| May 1994 | 80.00 | 3 |
| Apr 1994 | 83.00 | 3 |
| Mar 1994 | 80.00 | 3 |
| Feb 1994 | 80.00 | 3 |
| Jan 1994 | 81.00 | 3 |
| Dec 1993 | 82.00 | 3 |
| Nov 1993 | 81.00 | 3 |
| Oct 1993 | 80.00 | 3 |
| Sep 1993 | 153.00 | 3 |
| May 1993 | 73.00 | 3 |
| Apr 1993 | 83.00 | 3 |
| Feb 1993 | 83.00 | 3 |
| Jan 1993 | 83.00 | 3 |
| Nov 1992 | 81.00 | 3 |
| Oct 1992 | 82.00 | 3 |
| Sep 1992 | 82.00 | 3 |
| Aug 1992 | 81.00 | 3 |
| Jul 1992 | 78.00 | 3 |
| Jun 1992 | 80.00 | 3 |
| May 1992 | 81.00 | 3 |
| Apr 1992 | 83.00 | 3 |
| Mar 1992 | 83.00 | 3 |
| Feb 1992 | 84.00 | 3 |
| Jan 1992 | 83.00 | 3 |
| Dec 1991 | 83.00 | 3 |
| Nov 1991 | 83.00 | 3 |
| Oct 1991 | 81.00 | 3 |
| Sep 1991 | 81.00 | 3 |
| Aug 1991 | 82.00 | 3 |
| Jul 1991 | 80.00 | 3 |
| Jun 1991 | 82.00 | 3 |
| May 1991 | 80.00 | 3 |
| Apr 1991 | 82.00 | 3 |
| Mar 1991 | 81.00 | 3 |
| Feb 1991 | 84.00 | 3 |
| Jan 1991 | 82.00 | 3 |
| Dec 1990 | 79.00 | 3 |
| Nov 1990 | 82.00 | 3 |
| Oct 1990 | 82.00 | 3 |
| Sep 1990 | 79.00 | 3 |
| Aug 1990 | 155.00 | 3 |
| Jul 1990 | 81.00 | 3 |
| Jun 1990 | 82.00 | 3 |
| May 1990 | 84.00 | 3 |
| Apr 1990 | 83.00 | 3 |
| Mar 1990 | 83.00 | 3 |
| Feb 1990 | 80.00 | 3 |
| Jan 1990 | 84.00 | 3 |
| Dec 1989 | 77.00 | 3 |
| Nov 1989 | 83.00 | 3 |
| Oct 1989 | 166.00 | 3 |
| Sep 1989 | 82.00 | 3 |
| Aug 1989 | 82.00 | 3 |
| Jul 1989 | 82.00 | 3 |
| Jun 1989 | 165.00 | 3 |
| May 1989 | 83.00 | 3 |
| Apr 1989 | 84.00 | 3 |
| Mar 1989 | 83.00 | 3 |
| Feb 1989 | 83.00 | 3 |
| Jan 1989 | 166.00 | 3 |
| Dec 1988 | 83.00 | 3 |
| Nov 1988 | 83.00 | 3 |
| Oct 1988 | 83.00 | 3 |
| Sep 1988 | 83.00 | 3 |
| Aug 1988 | 164.00 | 3 |
| Jul 1988 | 80.00 | 3 |
| Jun 1988 | 80.00 | 3 |
| May 1988 | 165.00 | 3 |
| Apr 1988 | 83.00 | 3 |
| Mar 1988 | 84.00 | 3 |
| Feb 1988 | 167.00 | 3 |
| Jan 1988 | 83.00 | 3 |
| Dec 1987 | 82.00 | 3 |
| Nov 1987 | 163.00 | 3 |
| Oct 1987 | 82.00 | 3 |
| Sep 1987 | 83.00 | 3 |
| Aug 1987 | 162.00 | 3 |
| Jul 1987 | 82.00 | 3 |
| Jun 1987 | 155.00 | 3 |
| May 1987 | 83.00 | 3 |
| Apr 1987 | 79.00 | 3 |
| Mar 1987 | 167.00 | 3 |
| Feb 1987 | 84.00 | 3 |
| Jan 1987 | 85.00 | 3 |
| Dec 1986 | 159.00 | 3 |
| Nov 1986 | 84.00 | 3 |
| Oct 1986 | 162.00 | 3 |
| Sep 1986 | 82.00 | 3 |
| Aug 1986 | 159.00 | 3 |
| Jul 1986 | 81.00 | 3 |
| Jun 1986 | 162.00 | 3 |
| May 1986 | 164.00 | 3 |
| Apr 1986 | 163.00 | 3 |
| Mar 1986 | 83.00 | 3 |
| Feb 1986 | 166.00 | 3 |
| Jan 1986 | 164.00 | 3 |
| Dec 1985 | 166.00 | 3 |
| Nov 1985 | 164.00 | 3 |
| Oct 1985 | 82.00 | 3 |
| Sep 1985 | 94.00 | 3 |
| Aug 1985 | 81.00 | 3 |
| Jul 1985 | 161.00 | 3 |
| Jun 1985 | 240.00 | 3 |
| May 1985 | 240.00 | 3 |
| Apr 1985 | 81.00 | 3 |
| Mar 1985 | 162.00 | 3 |
| Feb 1985 | 84.00 | 3 |
| Jan 1985 | 84.00 | 3 |
| Dec 1984 | 82.00 | 3 |
| Nov 1984 | 163.00 | 3 |
| Oct 1984 | 82.00 | 3 |
| Sep 1984 | 147.00 | 3 |
| Aug 1984 | 79.00 | 3 |
| Jul 1984 | 163.00 | 3 |
| Jun 1984 | 162.00 | 3 |
| May 1984 | 80.00 | 3 |
| Apr 1984 | 166.00 | 3 |
| Mar 1984 | 83.00 | 3 |
| Feb 1984 | 165.00 | 3 |
| Jan 1984 | 87.00 | 3 |
| Dec 1983 | 85.00 | 3 |
| Nov 1983 | 169.00 | 3 |
| Oct 1983 | 82.00 | 3 |
| Sep 1983 | 164.00 | 3 |
| Aug 1983 | 148.00 | 3 |
| Jul 1983 | 148.00 | 3 |
| Jun 1983 | 83.00 | 3 |
| May 1983 | 161.00 | 3 |
| Apr 1983 | 167.00 | 3 |
| Mar 1983 | 166.00 | 3 |
| Feb 1983 | 86.00 | 3 |
| Jan 1983 | 158.00 | 3 |
| Dec 1982 | 170.00 | 3 |
| Nov 1982 | 169.00 | 3 |
| Oct 1982 | 169.00 | 3 |
| Sep 1982 | 169.00 | 3 |
| Aug 1982 | 163.00 | 3 |
| Jul 1982 | 167.00 | 3 |
| Jun 1982 | 165.00 | 3 |
| May 1982 | 248.00 | 3 |
| Apr 1982 | 163.00 | 3 |
| Mar 1982 | 170.00 | 3 |
| Feb 1982 | 165.00 | 3 |
| Jan 1982 | 162.00 | 3 |
| Dec 1981 | 258.00 | 3 |
| Nov 1981 | 167.00 | 3 |
| Oct 1981 | 244.00 | 3 |
| Sep 1981 | 165.00 | 3 |
| Aug 1981 | 245.00 | 3 |
| Jul 1981 | 239.00 | 3 |
| Jun 1981 | 252.00 | 3 |
| May 1981 | 242.00 | 3 |
| Apr 1981 | 576.00 | 3 |
| Mar 1981 | 249.00 | 3 |
| Feb 1981 | 86.00 | 3 |
| Jan 1981 | 84.00 | 3 |
| Dec 1980 | 81.00 | 3 |
| Nov 1980 | 70.00 | 3 |
| Oct 1980 | 77.00 | 3 |
| Sep 1980 | 80.00 | 3 |
| Aug 1980 | 71.00 | 3 |
| Jul 1980 | 162.00 | 3 |
| Jun 1980 | 81.00 | 3 |
| Apr 1980 | 79.00 | 3 |
| Mar 1980 | 81.00 | 3 |
| Jan 1980 | 74.00 | 3 |
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
12 wells the state's well register assigns to this lease. Every one has a page.
| Well | No. | Operator | Status |
|---|---|---|---|
| DUNLAP | 1 | unavailable | Well Drilled |
| DUNLAP | 3 | Valentine Oil Co. | Recompleted |
| DUNLAP | 3 | Massey, Gary R. | Authorized Injection Well |
| DUNLAP | 1 | Massey, Gary R. | Producing |
| FRED DUNLAP | 7 | unavailable | Plugged and Abandoned |
| DUNLAP | 5 | Massey, Gary R. | Producing |
| FRED DUNLAP | 6 | unavailable | Plugged and Abandoned |
| DUNLAP | 4 | unavailable | Plugged and Abandoned |
| DUNLAP | 5 | unavailable | Plugged and Abandoned |
| DUNLAP | 2 | unavailable | — |
| DUNLAP | 2 | unavailable | Plugged and Abandoned |
| DUNLAP | 2 | unavailable | Plugged and Abandoned |
Location
37.893853, -96.420721 · NE Sec 9 T25S R9E
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001109228. The state’s own record.