COBB
Lease 1001112550 · Russell County, Kansas · NWNENW Sec 30 T15S R11W · DOR 104833
Monthly oil production
132 months filed with the Kansas Geological Survey, Mar 1980 to Dec 2025. Volumes are bbl at lease level — a lease can cover many wells, so this is not a well's output.
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 55,123.29 bbl.
| Month | Oil (bbl) | Wells |
|---|---|---|
| Dec 2025 | 156.28 | 1 |
| Jul 2025 | 148.17 | 1 |
| Apr 2025 | 153.65 | 1 |
| Sep 2024 | 139.91 | 1 |
| May 2024 | 152.90 | 1 |
| Jan 2024 | 150.96 | 1 |
| Sep 2023 | 152.89 | 1 |
| May 2023 | 150.19 | 1 |
| Jan 2023 | 161.48 | 1 |
| Aug 2022 | 159.49 | 1 |
| Mar 2022 | 152.37 | 1 |
| Nov 2021 | 153.80 | 1 |
| Jul 2021 | 153.29 | 1 |
| Mar 2021 | 148.93 | 1 |
| Nov 2020 | 154.95 | 1 |
| Jul 2020 | 149.15 | 1 |
| Mar 2020 | 153.95 | 1 |
| Nov 2019 | 155.72 | 1 |
| Jul 2019 | 155.43 | 1 |
| Apr 2019 | 151.67 | 1 |
| Dec 2018 | 155.75 | 1 |
| Sep 2018 | 155.90 | 1 |
| May 2018 | 151.31 | 1 |
| Feb 2018 | 156.46 | 1 |
| Nov 2017 | 161.39 | 1 |
| Jul 2017 | 154.23 | 1 |
| Apr 2017 | 157.87 | 1 |
| Jan 2017 | 164.47 | 1 |
| Oct 2016 | 157.17 | 1 |
| Jun 2016 | 153.64 | 1 |
| Mar 2016 | 161.58 | 1 |
| Dec 2015 | 155.62 | 1 |
| Jul 2015 | 168.53 | 1 |
| Apr 2015 | 158.24 | 1 |
| Jan 2015 | 161.91 | 1 |
| Sep 2014 | 155.84 | 1 |
| Jun 2014 | 152.47 | 1 |
| Dec 2013 | 167.81 | 1 |
| Aug 2013 | 168.31 | 1 |
| May 2013 | 154.56 | 1 |
| Mar 2013 | 158.11 | 1 |
| Feb 2013 | 172.27 | 1 |
| Nov 2012 | 156.28 | 1 |
| Sep 2012 | 160.02 | 1 |
| Jul 2012 | 156.36 | 1 |
| May 2012 | 160.22 | 1 |
| Mar 2012 | 163.73 | 1 |
| Jun 2011 | 157.16 | 1 |
| Jan 2011 | 173.74 | 1 |
| Sep 2010 | 159.50 | 1 |
| Apr 2010 | 164.97 | 1 |
| Nov 2009 | 164.98 | 1 |
| Sep 2008 | 170.02 | 1 |
| Aug 2007 | 163.32 | 1 |
| Sep 2004 | 158.93 | 1 |
| May 2004 | 161.00 | 1 |
| Apr 1999 | 169.29 | 1 |
| Dec 1997 | 169.89 | 1 |
| Aug 1997 | 131.91 | 1 |
| Apr 1997 | 158.27 | 1 |
| Dec 1996 | 159.58 | 1 |
| Jul 1996 | 160.26 | 1 |
| Feb 1996 | 161.24 | 1 |
| Oct 1995 | 157.00 | 1 |
| Jun 1995 | 162.00 | 1 |
| Feb 1995 | 156.00 | 1 |
| Sep 1994 | 172.00 | 1 |
| Jun 1994 | 161.00 | 1 |
| Feb 1994 | 164.00 | 1 |
| Oct 1993 | 160.00 | 1 |
| Jul 1993 | 151.00 | 1 |
| Dec 1992 | 149.00 | 1 |
| Aug 1992 | 151.00 | 1 |
| Apr 1992 | 166.00 | 1 |
| Dec 1991 | 159.00 | 1 |
| Aug 1991 | 159.00 | 1 |
| May 1991 | 158.00 | 1 |
| Feb 1991 | 159.00 | 1 |
| Oct 1990 | 162.00 | 1 |
| Jul 1990 | 157.00 | 1 |
| Apr 1990 | 158.00 | 1 |
| Dec 1989 | 161.00 | 1 |
| Sep 1989 | 138.00 | 1 |
| May 1989 | 162.00 | 1 |
| Dec 1988 | 159.00 | 1 |
| Oct 1988 | 123.00 | 1 |
| Jul 1988 | 166.00 | 1 |
| May 1988 | 163.00 | 1 |
| Feb 1988 | 169.00 | 1 |
| Nov 1987 | 169.00 | 1 |
| Aug 1987 | 166.00 | 1 |
| Jun 1987 | 160.00 | 1 |
| Mar 1987 | 167.00 | 1 |
| Dec 1986 | 168.00 | 1 |
| Aug 1986 | 108.00 | 1 |
| May 1986 | 165.00 | 1 |
| Mar 1986 | 172.00 | 1 |
| Jan 1986 | 140.00 | 1 |
| Oct 1985 | 175.00 | 1 |
| Jul 1985 | 167.00 | 1 |
| May 1985 | 175.00 | 1 |
| Feb 1985 | 168.00 | 1 |
| Dec 1984 | 175.00 | 1 |
| Sep 1984 | 175.00 | 1 |
| Jul 1984 | 172.00 | 1 |
| May 1984 | 173.00 | 1 |
| Mar 1984 | 172.00 | 1 |
| Jan 1984 | 178.00 | 1 |
| Oct 1983 | 175.00 | 1 |
| Aug 1983 | 171.00 | 1 |
| Jun 1983 | 171.00 | 1 |
| Apr 1983 | 175.00 | 1 |
| Feb 1983 | 171.00 | 1 |
| Jan 1983 | 174.00 | 1 |
| Oct 1982 | 173.00 | 1 |
| Aug 1982 | 173.00 | 1 |
| Jul 1982 | 172.00 | 1 |
| Apr 1982 | 175.00 | 1 |
| Feb 1982 | 176.00 | 1 |
| Dec 1981 | 174.00 | 1 |
| Oct 1981 | 173.00 | 1 |
| Aug 1981 | 174.00 | 1 |
| Jun 1981 | 172.00 | 1 |
| Apr 1981 | 174.00 | 1 |
| Mar 1981 | 175.00 | 1 |
| Jan 1981 | 176.00 | 1 |
| Nov 1980 | 175.00 | 1 |
| Sep 1980 | 173.00 | 1 |
| Jul 1980 | 172.00 | 1 |
| May 1980 | 170.00 | 1 |
| Apr 1980 | 125.00 | 1 |
| Mar 1980 | 171.00 | 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
2 wells the state's well register assigns to this lease. Every one has a page.
| Well | No. | Operator | Status |
|---|---|---|---|
| COBB | 1 | Richlan Drilling, a General Partnership | Producing |
| CHEGWIDDEN | 1 | Petroleum Inc | Plugged and Abandoned |
Location
38.725055, -98.590651 · NWNENW Sec 30 T15S R11W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001112550. The state’s own record.