Sisters 'A' 1
Lease 1037829049 · Barber County, Kansas · Sec 12 T33S R11W · DOR 138837
Oil2007–20262 wells
Operator
Chieftain Oil Co., Inc.
Cumulative (state figure)
30,522.18 bbl
First production
2007
Last production
2026
Location (PLSS)
Sec 12 T33S R11W
Monthly oil production
82 months filed with the Kansas Geological Survey, Nov 2007 to Apr 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
30,522.20 bbl
Months filed
82
Most wells in a month
2
| Month | Oil (bbl) | Wells |
|---|---|---|
| Apr 2026 | 152.08 | 2 |
| Feb 2025 | 162.81 | 2 |
| Aug 2024 | 158.34 | 2 |
| May 2023 | 162.65 | 2 |
| Sep 2022 | 169.12 | 2 |
| Jun 2021 | 155.21 | 2 |
| Jul 2020 | 165.66 | 2 |
| Sep 2019 | 164.77 | 2 |
| Mar 2019 | 165.49 | 2 |
| Aug 2018 | 163.86 | 2 |
| Apr 2018 | 5.01 | 2 |
| Mar 2018 | 165.82 | 2 |
| Dec 2017 | 330.91 | 2 |
| Aug 2017 | 169.59 | 2 |
| Apr 2017 | 171.34 | 2 |
| Jan 2017 | 149.25 | 2 |
| Aug 2016 | 319.85 | 2 |
| Apr 2016 | 169.52 | 2 |
| Jan 2016 | 167.15 | 2 |
| Jun 2015 | 161.92 | 2 |
| Aug 2014 | 153.47 | 2 |
| May 2014 | 158.40 | 2 |
| Feb 2014 | 168.63 | 2 |
| Nov 2013 | 163.60 | 2 |
| Aug 2013 | 165.80 | 2 |
| Jun 2013 | 163.16 | 2 |
| Apr 2013 | 163.71 | 2 |
| Feb 2013 | 170.06 | 2 |
| Dec 2012 | 166.83 | 2 |
| Oct 2012 | 161.40 | 2 |
| Aug 2012 | 161.85 | 2 |
| Jul 2012 | 161.27 | 2 |
| May 2012 | 163.58 | 2 |
| Mar 2012 | 160.51 | 2 |
| Feb 2012 | 165.23 | 2 |
| Jan 2012 | 163.92 | 2 |
| Nov 2011 | 145.85 | 2 |
| Oct 2011 | 164.53 | 2 |
| Aug 2011 | 157.66 | 2 |
| Jul 2011 | 159.99 | 2 |
| Jun 2011 | 158.92 | 2 |
| May 2011 | 161.25 | 2 |
| Apr 2011 | 162.79 | 2 |
| Mar 2011 | 164.13 | 2 |
| Feb 2011 | 161.48 | 2 |
| Jan 2011 | 162.64 | 2 |
| Dec 2010 | 165.43 | 2 |
| Nov 2010 | 167.98 | 1 |
| Oct 2010 | 165.76 | 1 |
| Sep 2010 | 320.86 | 1 |
| Aug 2010 | 306.72 | 1 |
| Jul 2010 | 153.16 | 1 |
| Jun 2010 | 318.98 | 1 |
| May 2010 | 646.65 | 1 |
| Apr 2010 | 156.14 | 1 |
| Mar 2010 | 322.70 | 1 |
| Feb 2010 | 604.65 | 1 |
| Jan 2010 | 801.36 | 1 |
| Dec 2009 | 482.31 | 1 |
| Nov 2009 | 1,096.11 | 1 |
| Oct 2009 | 1,006.30 | 1 |
| Sep 2009 | 1,575.24 | 1 |
| Aug 2009 | 1,712.81 | 1 |
| Jul 2009 | 961.87 | 1 |
| Jun 2009 | 162.25 | 1 |
| May 2009 | 326.02 | 1 |
| Feb 2009 | 320.51 | 1 |
| Jan 2009 | 166.74 | 1 |
| Dec 2008 | 487.27 | 1 |
| Nov 2008 | 328.28 | 1 |
| Oct 2008 | 677.35 | 1 |
| Sep 2008 | 511.93 | 1 |
| Aug 2008 | 899.22 | 1 |
| Jul 2008 | 337.80 | 1 |
| Jun 2008 | 501.74 | 1 |
| May 2008 | 664.94 | 1 |
| Apr 2008 | 872.86 | 1 |
| Mar 2008 | 868.23 | 1 |
| Feb 2008 | 1,260.75 | 1 |
| Jan 2008 | 1,035.95 | 1 |
| Dec 2007 | 1,242.39 | 1 |
| Nov 2007 | 1,251.91 | 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 |
|---|---|---|---|
| Sisters 'A' | 1 | Chieftain Oil Co., Inc. | Producing |
| Sisters 'A' | 2 | Chieftain Oil Co., Inc. | Producing |
Location
37.188343, -98.467754 · Sec 12 T33S R11W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1037829049. The state’s own record.