McCullen-Helfrich 1
Lease 1042372633 · Barton County, Kansas · Sec 15 T17S R15W · DOR 140588
Oil2010–20261 well
Operator
Mai Oil Operations, Inc.
Cumulative (state figure)
23,941.56 bbl
First production
2010
Last production
2026
Location (PLSS)
Sec 15 T17S R15W
Monthly oil production
90 months filed with the Kansas Geological Survey, Jan 2010 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
23,941.60 bbl
Months filed
90
Most wells in a month
1
| Month | Oil (bbl) | Wells |
|---|---|---|
| Mar 2026 | 162.63 | 1 |
| Nov 2025 | 162.79 | 1 |
| Jul 2025 | 160.49 | 1 |
| Mar 2025 | 162.16 | 1 |
| Oct 2024 | 155.79 | 1 |
| Jun 2024 | 158.35 | 1 |
| Feb 2024 | 163.25 | 1 |
| Sep 2023 | 158.15 | 1 |
| May 2023 | 164.43 | 1 |
| Jan 2023 | 168.88 | 1 |
| Aug 2022 | 161.58 | 1 |
| May 2022 | 160.75 | 1 |
| Jan 2022 | 165.21 | 1 |
| Aug 2021 | 162.83 | 1 |
| Jun 2021 | 160.98 | 1 |
| Feb 2021 | 168.35 | 1 |
| Nov 2020 | 165.88 | 1 |
| Aug 2020 | 159.98 | 1 |
| Jun 2020 | 161.25 | 1 |
| Feb 2020 | 164.78 | 1 |
| Oct 2019 | 161.98 | 1 |
| Jul 2019 | 162.78 | 1 |
| May 2019 | 163.32 | 1 |
| Feb 2019 | 164.85 | 1 |
| Nov 2018 | 161.27 | 1 |
| Aug 2018 | 162.05 | 1 |
| May 2018 | 161.00 | 1 |
| Mar 2018 | 161.72 | 1 |
| Dec 2017 | 164.53 | 1 |
| Sep 2017 | 163.80 | 1 |
| Jun 2017 | 160.20 | 1 |
| Apr 2017 | 162.23 | 1 |
| Jan 2017 | 165.38 | 1 |
| Oct 2016 | 163.56 | 1 |
| Aug 2016 | 158.94 | 1 |
| Jun 2016 | 161.85 | 1 |
| Mar 2016 | 163.56 | 1 |
| Feb 2016 | 164.39 | 1 |
| Nov 2015 | 163.49 | 1 |
| Aug 2015 | 163.87 | 1 |
| Jun 2015 | 161.30 | 1 |
| May 2015 | 162.81 | 1 |
| Mar 2015 | 163.88 | 1 |
| Dec 2014 | 165.60 | 1 |
| Oct 2014 | 158.83 | 1 |
| Aug 2014 | 162.22 | 1 |
| Jul 2014 | 159.76 | 1 |
| May 2014 | 163.15 | 1 |
| Mar 2014 | 163.78 | 1 |
| Jan 2014 | 164.14 | 1 |
| Nov 2013 | 164.36 | 1 |
| Sep 2013 | 155.78 | 1 |
| Aug 2013 | 159.17 | 1 |
| Jun 2013 | 161.56 | 1 |
| May 2013 | 162.68 | 1 |
| Mar 2013 | 166.32 | 1 |
| Jan 2013 | 165.64 | 1 |
| Dec 2012 | 164.87 | 1 |
| Oct 2012 | 159.62 | 1 |
| Sep 2012 | 162.08 | 1 |
| Aug 2012 | 161.09 | 1 |
| Jun 2012 | 159.76 | 1 |
| May 2012 | 162.49 | 1 |
| Apr 2012 | 159.89 | 1 |
| Mar 2012 | 160.15 | 1 |
| Feb 2012 | 164.46 | 1 |
| Jan 2012 | 164.20 | 1 |
| Dec 2011 | 165.31 | 1 |
| Oct 2011 | 326.78 | 1 |
| Sep 2011 | 161.24 | 1 |
| Aug 2011 | 159.25 | 1 |
| Jul 2011 | 161.01 | 1 |
| Jun 2011 | 322.42 | 1 |
| May 2011 | 322.12 | 1 |
| Apr 2011 | 161.71 | 1 |
| Mar 2011 | 327.08 | 1 |
| Feb 2011 | 330.25 | 1 |
| Jan 2011 | 490.70 | 1 |
| Dec 2010 | 493.79 | 1 |
| Nov 2010 | 658.33 | 1 |
| Oct 2010 | 983.69 | 1 |
| Sep 2010 | 1,455.21 | 1 |
| Aug 2010 | 648.77 | 1 |
| Jul 2010 | 483.84 | 1 |
| Jun 2010 | 482.85 | 1 |
| May 2010 | 648.13 | 1 |
| Apr 2010 | 813.62 | 1 |
| Mar 2010 | 1,141.38 | 1 |
| Feb 2010 | 1,489.28 | 1 |
| Jan 2010 | 831.93 | 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 |
|---|---|---|---|
| McCullen-Helfrich | 1 | Mai Oil Operations, Inc. | Producing |
Location
38.572765, -98.968735 · Sec 15 T17S R15W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1042372633. The state’s own record.