Pfeifer Unit 1-1
Lease 1043502036 · Ellis County, Kansas · Sec 1 T13S R20W · DOR 141174
Oil2010–20261 well
Operator
Downing-Nelson Oil Co Inc
Cumulative (state figure)
13,974.95 bbl
First production
2010
Last production
2026
Location (PLSS)
Sec 1 T13S R20W
Monthly oil production
73 months filed with the Kansas Geological Survey, Nov 2010 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
13,975.00 bbl
Months filed
73
Most wells in a month
1
| Month | Oil (bbl) | Wells |
|---|---|---|
| Jan 2026 | 159.06 | 1 |
| Jul 2025 | 155.91 | 1 |
| Feb 2025 | 153.71 | 1 |
| Oct 2024 | 157.35 | 1 |
| Feb 2024 | 159.10 | 1 |
| Jun 2023 | 156.55 | 1 |
| Dec 2022 | 157.43 | 1 |
| Aug 2022 | 160.60 | 1 |
| Mar 2022 | 314.52 | 1 |
| Dec 2021 | 159.69 | 1 |
| Nov 2021 | 9.00 | 1 |
| Sep 2021 | 155.39 | 1 |
| Jun 2021 | 159.06 | 1 |
| Dec 2020 | 151.99 | 1 |
| Feb 2020 | 157.92 | 1 |
| Sep 2019 | 154.57 | 1 |
| May 2019 | 158.47 | 1 |
| Dec 2018 | 157.74 | 1 |
| Aug 2018 | 157.06 | 1 |
| Apr 2018 | 160.19 | 1 |
| Dec 2017 | 161.22 | 1 |
| Jul 2017 | 155.14 | 1 |
| Apr 2017 | 160.96 | 1 |
| Dec 2016 | 154.06 | 1 |
| Aug 2016 | 158.06 | 1 |
| May 2016 | 162.76 | 1 |
| Mar 2016 | 159.25 | 1 |
| Dec 2015 | 161.92 | 1 |
| Oct 2015 | 161.44 | 1 |
| Jul 2015 | 158.45 | 1 |
| Apr 2015 | 162.68 | 1 |
| Feb 2015 | 163.27 | 1 |
| Dec 2014 | 164.40 | 1 |
| Oct 2014 | 163.56 | 1 |
| Aug 2014 | 160.70 | 1 |
| Jun 2014 | 159.45 | 1 |
| Apr 2014 | 157.71 | 1 |
| Feb 2014 | 159.16 | 1 |
| Jan 2014 | 158.61 | 1 |
| Nov 2013 | 161.59 | 1 |
| Oct 2013 | 160.99 | 1 |
| Aug 2013 | 161.45 | 1 |
| Jun 2013 | 162.82 | 1 |
| May 2013 | 162.48 | 1 |
| Apr 2013 | 161.26 | 1 |
| Feb 2013 | 164.73 | 1 |
| Jan 2013 | 142.18 | 1 |
| Dec 2012 | 161.77 | 1 |
| Nov 2012 | 162.76 | 1 |
| Oct 2012 | 164.58 | 1 |
| Sep 2012 | 161.67 | 1 |
| Aug 2012 | 160.82 | 1 |
| Jul 2012 | 160.86 | 1 |
| Jun 2012 | 160.21 | 1 |
| May 2012 | 163.07 | 1 |
| Apr 2012 | 162.15 | 1 |
| Mar 2012 | 325.76 | 1 |
| Feb 2012 | 161.23 | 1 |
| Jan 2012 | 162.75 | 1 |
| Dec 2011 | 325.42 | 1 |
| Nov 2011 | 164.28 | 1 |
| Oct 2011 | 325.14 | 1 |
| Sep 2011 | 159.78 | 1 |
| Aug 2011 | 322.63 | 1 |
| Jul 2011 | 325.11 | 1 |
| Jun 2011 | 323.42 | 1 |
| May 2011 | 489.62 | 1 |
| Apr 2011 | 488.59 | 1 |
| Mar 2011 | 655.64 | 1 |
| Feb 2011 | 165.46 | 1 |
| Jan 2011 | 156.15 | 1 |
| Dec 2010 | 160.76 | 1 |
| Nov 2010 | 329.71 | 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
1 well the state's well register assigns to this lease. Every one has a page.
| Well | No. | Operator | Status |
|---|---|---|---|
| Pfeifer Unit | 1-1 | Downing-Nelson Oil Co Inc | Producing |
Location
38.950482, -99.492683 · Sec 1 T13S R20W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1043502036. The state’s own record.