The Squirrel formation
11,151 wells name this formation. The field is recorded on only 21 % of the register, so this is the minority that carries one.
| Measurement | Median | 90th percentile | Kansas median |
|---|---|---|---|
| Total depth | 820 ft | 1100 ft | 2831 ft — shallower here |
What stands out on the Squirrel
The operator named on most of these records is Birk Petroleum, on 768 of them (6.9%), ahead of Altavista Energy, INC (696) and R J Enterprises (663). The oldest well here was completed in 1912 and the most recent in 2025, and the deepest reaches 2041 feet — East Bell 'ws' 1, drilled in 1966.
Where it is produced
| County | Wells | Share |
|---|---|---|
| Miami | 2,047 | 18.4% |
| Franklin | 1,963 | 17.6% |
| Coffey | 1,922 | 17.2% |
| Woodson | 1,701 | 15.3% |
| Anderson | 1,271 | 11.4% |
| Douglas | 1,044 | 9.4% |
| Linn | 503 | 4.5% |
| Allen | 190 | 1.7% |
| Bourbon | 172 | 1.5% |
| Johnson | 153 | 1.4% |
| Leavenworth | 125 | 1.1% |
| Greenwood | 20 | 0.2% |
| Wilson | 17 | 0.2% |
| Montgomery | 8 | 0.1% |
| Neosho | 3 | 0.0% |
| Crawford | 1 | 0.0% |
| Lyon | 1 | 0.0% |
In which fields
| Field | Wells | Share |
|---|---|---|
| Paola-rantoul | 2,563 | 23.0% |
| Unknown | 871 | 7.8% |
| Vernon | 765 | 6.9% |
| Neosho Falls-leroy | 702 | 6.3% |
| Bush City Shoestring | 418 | 3.7% |
| Baldwin | 333 | 3.0% |
| Parmely | 329 | 3.0% |
| Centerville | 286 | 2.6% |
| Wildcat | 265 | 2.4% |
| Garnett Shoestring | 239 | 2.1% |
| Humboldt-chanute | 184 | 1.7% |
| Owl Creek | 155 | 1.4% |
| Rantoul | 150 | 1.3% |
| Crandall North | 136 | 1.2% |
What happened to these wells — on the Squirrel
1,618 of the 11,151 wells on the Squirrel are classed as plugged and abandoned. 16 were plugged at the State’s expense because no responsible party could be found, and 200 sit on the register as inactive — neither producing nor plugged.
⚠️ Two fields in this register disagree, and we show both rather than pick one: across Kansas, 245,220 wells are classed as plugged but 92,867 of them carry no plugging date, while 26,002 wells carry a date under another class. Here, 1,656 of these wells have a date on file. What each class means.
An old well on land in Kansas?
16 wells in Kansas were plugged at the State’s expense, out of 11,151 on the register — the sign that an operator was gone. If you find a well on your land, report it and do not tidy it up: knocking over casing can make you the responsible party. This site reads the register; it does not plug wells. Tell us where and we pass the request to Kansas operators and consultants.
We recommend nobody and we are nobody's agent. We have no arrangement with any firm today — we are collecting these requests in order to go and find them. What we do with this.
The wells
| Lease and well | Operator | Field | Depth (ft) | Year | Plugged |
|---|---|---|---|---|---|
| Golden 1 API 15-207-28409 | Black Star 231 Corp | — | 1550 | 2012 | State |
| Sturdivan (weston) 21 API 15-207-26206 | Integrated Petroleum Corp | Vernon | 1080 | 1994 | State |
| Haley A-2 API 15-045-20938 | Gault Energy CO | Oxbow | 750 | 1986 | State |
| Lotholtz 15 API 15-045-20947 | Gault Drlg | Oxbow | 700 | 1986 | State |
| Harold Neis 7 API 15-045-20692 | Rolex INC | Eudora Southwest | 925 | 1985 | State |
| Harold Neis 2 API 15-045-20592 | Rolex INC | Eudora Southwest | 925 | 1984 | State |
| Harold Neis 9 API 15-045-20693 | Rolex INC | Eudora Southwest | 925 | 1984 | State |
| Lotholtz 5 API 15-045-20703 | Gault Energy Corporation | Oxbow | 665 | 1984 | State |
| Haley 3 API 15-045-20716 | Gault Energy Corp. (05304) | Oxbow | 550 | 1984 | State |
| Hird 1 API 15-045-20372 | Gault Oil | Eudora | 575 | 1983 | State |
| Lothholz 3 API 15-045-20394 | Gault Oil | Oxbow | 640 | 1983 | State |
| Adkinson 1 API 15-045-20400 | Gault Oil Co., LTD | Eudora | 630 | 1983 | State |
| Mankin 1-82 API 15-091-20595 | Reese Exploration, INC | Paola-rantoul | 885 | 1982 | State |
| Ball 188 API 15-107-21345 | Research Exploration & Recovery CO | Centerville | 600 | 1982 | State |
| A. C. Pflug Acp15 Was 15 API 15-121-21448 | Scimitar Resources | Unknown | 759 | 1980 | State |
| B-lothholz 5 API 15-045-21467 | J & J Operating, LLC | Eudora | 665 | — | State |
| Twin Cc Farms Pg2 API 15-107-25566 | Dale E. Jackson Production CO | Unknown | 189 | 2025 | — |
| Twin Cc Farms If2 API 15-107-25557 | Dale E. Jackson Production CO | Unknown | 182 | 2025 | — |
| Twin Cc Farms Ig1 API 15-107-25558 | Dale E. Jackson Production CO | Unknown | 171 | 2025 | — |
| Twin Cc Farms Ig2 API 15-107-25559 | Dale E. Jackson Production CO | Unknown | 183 | 2025 | — |
| Twin Cc Farms Pf1 API 15-107-25560 | Dale E. Jackson Production CO | Unknown | 177 | 2025 | — |
| Twin Cc Farms Pf2 API 15-107-25561 | Dale E. Jackson Production CO | Unknown | 193 | 2025 | — |
| Twin Cc Farms Pg1 API 15-107-25562 | Dale E. Jackson Production CO | Unknown | 183 | 2025 | — |
| Twin Cc Farms Ie1 API 15-107-25563 | Dale E. Jackson Production CO | Unknown | 167 | 2025 | — |
| Twin Cc Farms Ie2 API 15-107-25564 | Dale E. Jackson Production CO | Unknown | 168 | 2025 | — |
| Twin Cc Farms Pd1 API 15-107-25565 | Dale E. Jackson Production CO | Unknown | 165 | 2025 | — |
| Twin Cc Farms Pe1 API 15-107-25567 | Dale E. Jackson Production CO | Unknown | 176 | 2025 | — |
| Twin Cc Farms Pe2 API 15-107-25568 | Dale E. Jackson Production CO | Unknown | 178 | 2025 | — |
| Twin Cc Farms Pd2 API 15-107-25569 | Dale E. Jackson Production CO | Unknown | 166 | 2025 | — |
| Blake 28 API 15-207-30057 | Birk Petroleum | Vernon | 1150 | 2025 | — |
| Grandon 6a API 15-121-31872 | Ballou Energy | Paola-rantoul | 650 | 2025 | — |
| Sobba 22 API 15-003-26129 | R J Enterprises | Bush City Shoestring | 847 | 2024 | — |
| Shofner Di-1 API 15-121-31110 | Diamond Star Oil, INC | Paola-rantoul | 701 | 2024 | — |
| Shofner Di-3 API 15-121-31112 | Diamond Star Oil, INC | Paola-rantoul | 722 | 2024 | — |
| Shofner Di-4 API 15-121-31113 | Diamond Star Oil, INC | Paola-rantoul | 697 | 2024 | — |
| Shofner Di-6 API 15-121-31115 | Diamond Star Oil, INC | Paola-rantoul | 691 | 2024 | — |
| Shofner Di-7 API 15-121-31116 | Diamond Star Oil, INC | Paola-rantoul | 691 | 2024 | — |
| Brodmerkle North 21 API 15-207-29514 | Owens Petroleum LLC | Neosho Falls-leroy | 1002 | 2024 | — |
| Grandon 4 API 15-121-31817 | Ballou Energy | Paola-rantoul | 660 | 2024 | — |
| Grandon I-1 API 15-121-31818 | Ballou Energy | Paola-rantoul | 620 | 2024 | — |
| Grandon 5 API 15-121-31821 | Ballou Energy | Paola-rantoul | 740 | 2024 | — |
| N. Minckley 3a API 15-003-26915 | Mcfadden Oil CO | Colony-welda | 750 | 2023 | — |
| Lorance 1a API 15-003-26916 | Mcfadden Oil CO | Colony-welda | 822 | 2023 | — |
| Minckley 9x API 15-003-26917 | Mcfadden Oil CO | Colony-welda | 782 | 2023 | — |
| Minckley 1a API 15-003-26918 | Mcfadden Oil CO | Colony-welda | 782 | 2023 | — |
| Lin Lea Ih2 API 15-011-24767 | Dale E. Jackson Production CO | Lost Creek | 164 | 2023 | — |
| Lin Lea Ig2 API 15-011-24769 | Dale E. Jackson Production CO | Lost Creek | 153 | 2023 | — |
| Lin Lea Ih5 API 15-011-24765 | Dale E. Jackson Production CO | Lost Creek | 158 | 2023 | — |
| Lin Lea Ie2 API 15-011-24771 | Dale E. Jackson Production CO | Lost Creek | 160 | 2023 | — |
| Lin Lea Ph3 API 15-011-24774 | Dale E. Jackson Production CO | Lost Creek | 168 | 2023 | — |
| Lin Lea If2 API 15-011-24775 | Dale E. Jackson Production CO | Lost Creek | 151 | 2023 | — |
| Lin Lea If3 API 15-011-24776 | Dale E. Jackson Production CO | Lost Creek | 151 | 2023 | — |
| Lin Lea Ph4 API 15-011-24777 | Dale E. Jackson Production CO | Lost Creek | 165 | 2023 | — |
| Lin Lea Ie3 API 15-011-24780 | Dale E. Jackson Production CO | Lost Creek | 147 | 2023 | — |
| Lin Lea Ih4 API 15-011-24785 | Dale E. Jackson Production CO | Lost Creek | 166 | 2023 | — |
| Lin Lea Ih3 API 15-011-24786 | Dale E. Jackson Production CO | Lost Creek | 163 | 2023 | — |
| Lin Lea Ig3 API 15-011-24787 | Dale E. Jackson Production CO | Lost Creek | 154 | 2023 | — |
| Lin Lea Id3 API 15-011-24788 | Dale E. Jackson Production CO | Lost Creek | 154 | 2023 | — |
| Lin Lea Id2 API 15-011-24789 | Dale E. Jackson Production CO | Lost Creek | 149 | 2023 | — |
| Lin Lea Ic7 API 15-011-24790 | Dale E. Jackson Production CO | Lost Creek | 154 | 2023 | — |
| Lorance 2a API 15-003-26930 | Mcfadden Oil CO | Colony-welda | 822 | 2023 | — |
| Tremain 14 API 15-031-24660 | Quest Development CO | Parmely | 1060 | 2023 | — |
| Lorance 4a API 15-003-26931 | Mcfadden Oil CO | Colony-welda | 822 | 2023 | — |
| Lorance 5a API 15-003-26933 | Mcfadden Oil CO | Colony-welda | 800 | 2023 | — |
| Lin Lea Ph5a API 15-011-24794 | Dale E. Jackson Production CO | Lost Creek | 161 | 2023 | — |
| Snyder Pa2 API 15-011-24799 | Dale E. Jackson Production CO | Feagins | 423 | 2023 | — |
| Snyder Pa3 API 15-011-24800 | Dale E. Jackson Production CO | Feagins | 470 | 2023 | — |
| Snyder Pb1 API 15-011-24803 | Dale E. Jackson Production CO | Feagins | 180 | 2023 | — |
| Snyder Pb2 API 15-011-24804 | Dale E. Jackson Production CO | Feagins | 422 | 2023 | — |
| Snyder Pa1 API 15-011-24805 | Dale E. Jackson Production CO | Feagins | 181 | 2023 | — |
| John E. Burkdoll 2 API 15-059-22991-0001 | Bg-5, INC | Paola-rantoul | 810 | 2022 | — |
| Miller 0 12 API 15-059-20335-0001 | Zeta Energy, LLC | Paola-rantoul | 750 | 2022 | — |
| Schornick 3 API 15-207-29848 | Quest Development CO | Wildcat | 1015 | 2022 | — |
| Harbison 49 API 15-121-31686 | Justin Energy Corp | Paola-rantoul | 727 | 2022 | — |
| Hunt 28-i API 15-121-31690 | M. J. T. Enterprises | Paola-rantoul | 596 | 2022 | — |
| Blohm 6ao API 15-001-31733 | Mcfadden Oil CO | Iola | 870 | 2022 | — |
| Blohm 7ao API 15-001-31734 | Mcfadden Oil CO | Iola | 870 | 2022 | — |
| Hunley 12-a API 15-003-25225 | R J Enterprises | Bush City Shoestring | 817 | 2021 | — |
| Storrer 3 API 15-207-29802 | C & S Oil | Neosho Falls-leroy | 1014 | 2021 | — |
| Faulhaber Pb7 API 15-011-24657 | Dale E. Jackson Production CO | Feagins West | 204 | 2020 | — |
| Blohm 3ao API 15-001-31629 | Mcfadden Oil CO | Iola | 870 | 2020 | — |
| Blohm 4ao API 15-001-31630 | Mcfadden Oil CO | Iola | 870 | 2020 | — |
| Blohm 5ao API 15-001-31631 | Mcfadden Oil CO | Iola | 870 | 2020 | — |
| Brewer 4-a API 15-031-24287 | Rj Energy, LLC | Neosho Falls-leroy | 976 | 2019 | — |
| Brewer 7-i API 15-031-24288 | Rj Energy, LLC | Neosho Falls-leroy | 986 | 2019 | — |
| Brewer 7-a API 15-031-24291 | Rj Energy, LLC | Neosho Falls-leroy | 991 | 2019 | — |
| Brewer 12-a API 15-031-24293 | Rj Energy, LLC | Neosho Falls-leroy | 970 | 2019 | — |
| Edwards/williamson 9 API 15-031-24329 | C & S Oil | Neosho Falls-leroy | 1077 | 2019 | — |
| 1-3 Peine 5 API 15-003-26623 | Colt Energy INC | Colony-welda | 866 | 2019 | — |
| Mccoy 4wa API 15-059-27197 | Tdr Construction, INC | Paola-rantoul | 820 | 2019 | — |
| Mccoy 8w API 15-059-27198 | Tdr Construction, INC | Paola-rantoul | 840 | 2019 | — |
| Mccoy 9w API 15-059-27199 | Tdr Construction, INC | Paola-rantoul | 840 | 2019 | — |
| Thrasher I-4 API 15-045-22291 | Midstates Energy Operating, LLC | Eudora Southwest | 783 | 2019 | — |
| Martin 12 API 15-003-26632 | Colt Energy INC | Colony-welda | 1000 | 2019 | — |
| Compton 6 API 15-121-31536 | Reusch Well Service, INC | Paola-rantoul | 713 | 2019 | — |
| Compton 7 API 15-121-31537 | Reusch Well Service, INC | Paola-rantoul | 820 | 2019 | — |
| Overall 17 API 15-003-26634 | Colt Energy INC | Colony-welda | 1000 | 2019 | — |
| Jcb Miller 35 API 15-003-26633 | Colt Energy INC | Colony-welda | 1000 | 2019 | — |
| Murray Twins 7-i API 15-031-24348 | Rj Energy, LLC | Neosho Falls-leroy | 991 | 2019 | — |
| Murray Twins 9-a API 15-031-24351 | Rj Energy, LLC | Neosho Falls-leroy | 1002 | 2019 | — |
| Murray Twins 9-i API 15-031-24349 | Rj Energy, LLC | Neosho Falls-leroy | 981 | 2019 | — |
| Chambers 10 API 15-059-27203 | Reusch Well Service, INC | Paola-rantoul | 770 | 2019 | — |
| Chambers 11 API 15-059-27204 | Reusch Well Service, INC | Paola-rantoul | 733 | 2019 | — |
| Martin I-15 API 15-003-26635 | Colt Energy INC | Colony-welda | 1000 | 2019 | — |
| Jcb Miller I-36 API 15-003-26636 | Colt Energy INC | Colony-welda | 1000 | 2019 | — |
| Murray Twins 1-a API 15-207-29710 | Rj Energy, LLC | Neosho Falls-leroy | 1006 | 2019 | — |
| Murray Twins 19-a API 15-207-29712 | Rj Energy, LLC | Neosho Falls-leroy | 1000 | 2019 | — |
| Murray Twins 2-a API 15-207-29711 | Rj Energy, LLC | Neosho Falls-leroy | 1004 | 2019 | — |
| Murray Twins 18-i API 15-207-29716 | Rj Energy, LLC | Neosho Falls-leroy | 990 | 2019 | — |
| Murray Twins 19-i API 15-207-29717 | Rj Energy, LLC | Neosho Falls-leroy | 1015 | 2019 | — |
| Webb W 2-i API 15-031-24354 | Rj Energy, LLC | Neosho Falls-leroy | 1002 | 2019 | — |
| Freeman A 2-i API 15-031-24353 | Rj Energy, LLC | Neosho Falls-leroy | 1002 | 2019 | — |
| Murray Twins 20-a API 15-207-29718 | Rj Energy, LLC | Neosho Falls-leroy | 1020 | 2019 | — |
| Murray Twins 18-a API 15-207-29719 | Rj Energy, LLC | Neosho Falls-leroy | 1020 | 2019 | — |
| Webb W 3-i API 15-031-24355 | Rj Energy, LLC | Neosho Falls-leroy | 1008 | 2019 | — |
| Brewer 9-i API 15-031-24365 | Rj Energy, LLC | Neosho Falls-leroy | 1009 | 2019 | — |
| Brewer 3-a API 15-031-24357 | Rj Energy, LLC | Neosho Falls-leroy | 991 | 2019 | — |
| Brewer 6-a API 15-031-24358 | Rj Energy, LLC | Neosho Falls-leroy | 1002 | 2019 | — |
| Brewer 9-a API 15-031-24360 | Rj Energy, LLC | Neosho Falls-leroy | 1010 | 2019 | — |
| Brewer 10-a API 15-031-24361 | Rj Energy, LLC | Neosho Falls-leroy | 1002 | 2019 | — |
| Brewer 3-i API 15-031-24362 | Rj Energy, LLC | Neosho Falls-leroy | 998 | 2019 | — |
| Murray Twins 10-i API 15-031-24366 | Rj Energy, LLC | Neosho Falls-leroy | 1008 | 2019 | — |
| Brewer 6-i API 15-031-24364 | Rj Energy, LLC | Neosho Falls-leroy | 1002 | 2019 | — |
| Murray Twins 11-i API 15-031-24367 | Rj Energy, LLC | Neosho Falls-leroy | 973 | 2019 | — |
| Murray Twins 12-i API 15-031-24368 | Rj Energy, LLC | Neosho Falls-leroy | 983 | 2019 | — |
| Murray Twins 13-i API 15-031-24369 | Rj Energy, LLC | Neosho Falls-leroy | 980 | 2019 | — |
| Murray Twins 14-i API 15-031-24370 | Rj Energy, LLC | Neosho Falls-leroy | 980 | 2019 | — |
| Murray Twins 11-a API 15-031-24371 | Rj Energy, LLC | Neosho Falls-leroy | 979 | 2019 | — |
| Murray Twins 12-a API 15-031-24372 | Rj Energy, LLC | Neosho Falls-leroy | 990 | 2019 | — |
| Murray Twins 13-a API 15-031-24373 | Rj Energy, LLC | Neosho Falls-leroy | 990 | 2019 | — |
| Murray Twins 14-a API 15-031-24374 | Rj Energy, LLC | Neosho Falls-leroy | 981 | 2019 | — |
| Murray Twins 15-a API 15-031-24375 | Rj Energy, LLC | Neosho Falls-leroy | 1002 | 2019 | — |
| Murray Twins 16-a API 15-031-24376 | Rj Energy, LLC | Neosho Falls-leroy | 1009 | 2019 | — |
| Murray Twins 17-a API 15-031-24377 | Rj Energy, LLC | Neosho Falls-leroy | 995 | 2019 | — |
| Brewer 10-i API 15-031-24378 | Rj Energy, LLC | Neosho Falls-leroy | 998 | 2019 | — |
| Dennis Crotts 1-a API 15-031-24379 | Rj Energy, LLC | Neosho Falls-leroy | 1038 | 2019 | — |
| Dennis Crotts 3-a API 15-031-24380 | Rj Energy, LLC | Neosho Falls-leroy | 1046 | 2019 | — |
| Dennis Crotts 3-i API 15-031-24381 | Rj Energy, LLC | Neosho Falls-leroy | 1034 | 2019 | — |
| Hunt 16-i API 15-121-31574 | M. J. T. Enterprises | Paola-rantoul | 579 | 2019 | — |
| Hunt 17-i API 15-121-31575 | M. J. T. Enterprises | Paola-rantoul | 580 | 2019 | — |
| Hunt 18-i API 15-121-31576 | M. J. T. Enterprises | Paola-rantoul | 580 | 2019 | — |
| Kitchen 8-a API 15-121-31579 | Poverty Knob Production, LLC | Paola-rantoul | 679 | 2019 | — |
| Kitchen 9-a API 15-121-31580 | Poverty Knob Production, LLC | Paola-rantoul | 668 | 2019 | — |
| Kitchen 5-a API 15-121-31577 | Poverty Knob Production, LLC | Paola-rantoul | 679 | 2019 | — |
| Kitchen 1-w API 15-121-31581 | Poverty Knob Production, LLC | Paola-rantoul | 685 | 2019 | — |
| Kitchen 2-w API 15-121-31582 | Poverty Knob Production, LLC | Paola-rantoul | 677 | 2019 | — |
| Kitchen 3-w API 15-121-31583 | Poverty Knob Production, LLC | Paola-rantoul | 667 | 2019 | — |
| Kitchen 4-w API 15-121-31584 | Poverty Knob Production, LLC | Paola-rantoul | 667 | 2019 | — |
| Kitchen 6-a API 15-121-31585 | Poverty Knob Production, LLC | Paola-rantoul | 678 | 2019 | — |
| Webb W Swd-1 API 15-031-24382 | Rj Energy, LLC | Neosho Falls-leroy | 1512 | 2019 | — |
Other formations
- Mississippian 10,791
- Arbuckle 10,446
- Bartlesville 10,057
- Chase Group 8,994
- Mississippi 5,201
- Lansing-kansas City 3,409
- Council Grove Group 2,462
- Morrow 1,978
- Arbuckle Group 1,866
- Oarb 1,814
- Lansing 1,580
- Cherokee Coals 1,493
- Peru 1,454
- Niobrara 1,349
- Cattleman 1,108
- Viola 1,051
- Kansas City 997
- Squirrel Sand 995
- Arbuckle, Lansing Kansas City 993
- Cherokee 988
- St Louis 947
- Mississippian System 934
- Chase 899
- Wayside 884
- Marmaton 825
- Mrw L 809
- Chester 732
- Simpson 678
- Lansing Kansas City 576
- Mrw U 514
- Tucker 497
- Council Grove 417