WANKER 'B'
Lease 1001139639 · Graham County, Kansas · Sec 35 T7S R23W · DOR 127775
Oil1987–20262 wells
Operator
MAD Operators LLC
Cumulative (state figure)
20,066.40 bbl
First production
1987
Last production
2026
Location (PLSS)
Sec 35 T7S R23W
Monthly oil production
125 months filed with the Kansas Geological Survey, Nov 1987 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
20,066.40 bbl
Months filed
125
Most wells in a month
1
| Month | Oil (bbl) | Wells |
|---|---|---|
| Mar 2026 | 36.00 | 1 |
| Jul 2023 | 153.22 | 1 |
| Dec 2022 | 155.04 | 1 |
| Jun 2021 | 152.82 | 1 |
| Aug 2019 | 154.66 | 1 |
| Mar 2019 | 156.01 | 1 |
| Aug 2018 | 148.51 | 1 |
| Apr 2018 | 153.45 | 1 |
| Nov 2017 | 155.12 | 1 |
| Jun 2017 | 151.91 | 1 |
| Oct 2016 | 144.52 | 1 |
| May 2016 | 155.51 | 1 |
| Dec 2015 | 157.94 | 1 |
| Jul 2015 | 156.74 | 1 |
| Jan 2015 | 159.68 | 1 |
| Aug 2014 | 142.55 | 1 |
| Dec 2013 | 158.59 | 1 |
| Jul 2013 | 156.00 | 1 |
| Mar 2013 | 145.80 | 1 |
| Nov 2012 | 155.40 | 1 |
| Jul 2012 | 154.81 | 1 |
| Mar 2012 | 157.27 | 1 |
| Nov 2011 | 162.56 | 1 |
| Jun 2011 | 143.13 | 1 |
| Mar 2011 | 157.02 | 1 |
| Nov 2010 | 158.11 | 1 |
| Jul 2010 | 158.96 | 1 |
| Mar 2010 | 166.07 | 1 |
| Nov 2009 | 161.18 | 1 |
| Jul 2009 | 156.25 | 1 |
| Mar 2009 | 157.06 | 1 |
| Dec 2008 | 166.14 | 1 |
| Aug 2008 | 163.37 | 1 |
| May 2008 | 156.60 | 1 |
| Jan 2008 | 164.06 | 1 |
| Oct 2007 | 151.97 | 1 |
| Jun 2007 | 153.34 | 1 |
| Mar 2007 | 164.73 | 1 |
| Oct 2006 | 164.33 | 1 |
| Jul 2006 | 153.01 | 1 |
| Apr 2006 | 133.38 | 1 |
| Feb 2006 | 170.04 | 1 |
| Oct 2005 | 154.20 | 1 |
| Jul 2005 | 158.89 | 1 |
| Apr 2005 | 158.03 | 1 |
| Jan 2005 | 154.58 | 1 |
| Nov 2004 | 158.94 | 1 |
| Aug 2004 | 159.66 | 1 |
| May 2004 | 162.97 | 1 |
| Jan 2004 | 145.88 | 1 |
| Sep 2003 | 166.91 | 1 |
| Jun 2003 | 168.30 | 1 |
| Mar 2003 | 163.66 | 1 |
| Nov 2002 | 174.19 | 1 |
| Aug 2002 | 162.57 | 1 |
| May 2002 | 153.67 | 1 |
| Mar 2002 | 158.67 | 1 |
| Dec 2001 | 156.56 | 1 |
| Sep 2001 | 150.46 | 1 |
| Jul 2001 | 148.91 | 1 |
| Apr 2001 | 157.29 | 1 |
| Feb 2001 | 158.17 | 1 |
| Nov 2000 | 161.99 | 1 |
| Aug 2000 | 151.42 | 1 |
| May 2000 | 148.63 | 1 |
| Feb 2000 | 142.51 | 1 |
| Feb 1999 | 164.24 | 1 |
| Jun 1998 | 150.53 | 1 |
| Apr 1998 | 166.39 | 1 |
| Jan 1998 | 163.90 | 1 |
| Nov 1997 | 166.57 | 1 |
| Sep 1997 | 169.85 | 1 |
| Jun 1997 | 146.62 | 1 |
| Mar 1997 | 157.04 | 1 |
| Jan 1997 | 184.18 | 1 |
| Nov 1996 | 168.22 | 1 |
| Sep 1996 | 160.08 | 1 |
| Jun 1996 | 155.83 | 1 |
| Apr 1996 | 157.20 | 1 |
| Mar 1996 | 157.83 | 1 |
| Dec 1995 | 160.00 | 1 |
| Sep 1995 | 177.00 | 1 |
| Jul 1995 | 161.00 | 1 |
| May 1995 | 161.00 | 1 |
| Mar 1995 | 146.00 | 1 |
| Dec 1994 | 162.00 | 1 |
| Sep 1994 | 169.00 | 1 |
| Jun 1994 | 158.00 | 1 |
| Nov 1993 | 163.00 | 1 |
| Sep 1993 | 159.00 | 1 |
| Jun 1993 | 145.00 | 1 |
| Apr 1993 | 172.00 | 1 |
| Dec 1992 | 163.00 | 1 |
| Oct 1992 | 155.00 | 1 |
| Jul 1992 | 171.00 | 1 |
| Apr 1992 | 152.00 | 1 |
| Feb 1992 | 171.00 | 1 |
| Nov 1991 | 139.00 | 1 |
| Sep 1991 | 162.00 | 1 |
| Jul 1991 | 125.00 | 1 |
| Mar 1991 | 135.00 | 1 |
| Jan 1991 | 162.00 | 1 |
| Nov 1990 | 155.00 | 1 |
| Aug 1990 | 160.00 | 1 |
| Jun 1990 | 170.00 | 1 |
| Apr 1990 | 162.00 | 1 |
| Jan 1990 | 156.00 | 1 |
| Nov 1989 | 159.00 | 1 |
| Oct 1989 | 158.00 | 1 |
| Aug 1989 | 160.00 | 1 |
| Jun 1989 | 161.00 | 1 |
| Apr 1989 | 160.00 | 1 |
| Feb 1989 | 165.00 | 1 |
| Dec 1988 | 159.00 | 1 |
| Nov 1988 | 161.00 | 1 |
| Sep 1988 | 158.00 | 1 |
| Aug 1988 | 160.00 | 1 |
| Jul 1988 | 155.00 | 1 |
| Jun 1988 | 143.00 | 1 |
| May 1988 | 159.00 | 1 |
| Mar 1988 | 315.00 | 1 |
| Feb 1988 | 149.00 | 1 |
| Jan 1988 | 162.00 | 1 |
| Dec 1987 | 318.00 | 1 |
| Nov 1987 | 325.00 | 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 |
|---|---|---|---|
| WANKER 'B' | 1 | MAD Operators LLC | Authorized Injection Well |
| WANKER | 1 | MAD Operators LLC | Plugged and Abandoned |
Location
39.400902, -99.854172 · Sec 35 T7S R23W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001139639. The state’s own record.