O'BRIEN
Lease 1001140589 · Neosho County, Kansas · Sec 27 T28S R21E · DOR 130045
Oil1990–20263 wells
Operator
O'Brien, Owen
Cumulative (state figure)
3,327.77 bbl
First production
1990
Last production
2026
Location (PLSS)
Sec 27 T28S R21E
Monthly oil production
44 months filed with the Kansas Geological Survey, Apr 1990 to Jan 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
3,327.80 bbl
Months filed
44
Most wells in a month
4
| Month | Oil (bbl) | Wells |
|---|---|---|
| Jan 2026 | 128.16 | 4 |
| Nov 2023 | 89.74 | 4 |
| Oct 2022 | 129.65 | 4 |
| Jun 2021 | 123.94 | 4 |
| May 2019 | 128.84 | 4 |
| Jun 2017 | 125.07 | 4 |
| Apr 2015 | 114.05 | 4 |
| Apr 2014 | 123.95 | 4 |
| Aug 2012 | 119.94 | 4 |
| May 2011 | 65.91 | 4 |
| Sep 2010 | 121.33 | 4 |
| Oct 2009 | 108.54 | — |
| Oct 2008 | 58.00 | — |
| May 2008 | 58.61 | — |
| Aug 2007 | 94.99 | — |
| Jul 2006 | 66.81 | — |
| Apr 2006 | 81.80 | — |
| Sep 2005 | 58.39 | — |
| Jul 2005 | 107.16 | — |
| May 2004 | 130.53 | — |
| Jan 2002 | 70.21 | — |
| Jun 2001 | 127.40 | — |
| May 1997 | 63.75 | — |
| Nov 1995 | 56.00 | 1 |
| Jun 1995 | 56.00 | 1 |
| Feb 1995 | 53.00 | 1 |
| Dec 1994 | 53.00 | 1 |
| Apr 1994 | 46.00 | 1 |
| Feb 1994 | 39.00 | 1 |
| Aug 1993 | 26.00 | 1 |
| Apr 1993 | 56.00 | 1 |
| Mar 1993 | 24.00 | 1 |
| Dec 1992 | 23.00 | 1 |
| Sep 1992 | 34.00 | 1 |
| Jul 1992 | 27.00 | 1 |
| Apr 1992 | 15.00 | 1 |
| Feb 1992 | 36.00 | 1 |
| Nov 1991 | 58.00 | 1 |
| Aug 1991 | 68.00 | 1 |
| Apr 1991 | 63.00 | 1 |
| Jan 1991 | 77.00 | 1 |
| Sep 1990 | 74.00 | 1 |
| Jun 1990 | 73.00 | 1 |
| Apr 1990 | 74.00 | 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
3 wells the state's well register assigns to this lease. Every one has a page.
Location
37.580063, -95.096932 · Sec 27 T28S R21E
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001140589. The state’s own record.