The Marmaton formation
825 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 | 4800 ft | 5797 ft | 2831 ft — deeper here |
What stands out on the Marmaton
The operator named on most of these records is Osborn Energy, L.l.c, on 88 of them (10.7%), ahead of Mull Drilling Co., INC (26) and Oxy Usa, INC (25). The oldest well here was completed in 1937 and the most recent in 2026, and the deepest reaches 8458 feet — 11-21-29 H1, drilled in 2013.
Where it is produced
| County | Wells | Share |
|---|---|---|
| Trego | 143 | 17.3% |
| Miami | 95 | 11.5% |
| Scott | 83 | 10.1% |
| Lane | 48 | 5.8% |
| Comanche | 45 | 5.5% |
| Wichita | 45 | 5.5% |
| Finney | 43 | 5.2% |
| Haskell | 43 | 5.2% |
| Seward | 40 | 4.8% |
| Logan | 30 | 3.6% |
| Cheyenne | 23 | 2.8% |
| Meade | 20 | 2.4% |
| Barber | 15 | 1.8% |
| Hodgeman | 15 | 1.8% |
| Thomas | 13 | 1.6% |
| Montgomery | 12 | 1.5% |
| Morton | 11 | 1.3% |
| Ellis | 10 | 1.2% |
| Kearny | 10 | 1.2% |
| Gove | 9 | 1.1% |
In which fields
| Field | Wells | Share |
|---|---|---|
| Wildcat | 109 | 13.2% |
| Louisburg | 69 | 8.4% |
| Unnamed | 35 | 4.2% |
| Shaw Creek | 32 | 3.9% |
| Gagelman South | 17 | 2.1% |
| Victory | 16 | 1.9% |
| Paola-rantoul | 15 | 1.8% |
| Shaw Creek South | 13 | 1.6% |
| Unknown | 9 | 1.1% |
| Saw Log Creek | 7 | 0.8% |
| Demurry | 7 | 0.8% |
| Demurry Southeast | 7 | 0.8% |
| Forest City Coal Gas Area | 7 | 0.8% |
| Stratton | 6 | 0.7% |
What happened to these wells — on the Marmaton
330 of the 825 wells on the Marmaton are classed as plugged and abandoned. 8 were plugged at the State’s expense because no responsible party could be found, and 36 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, 338 of these wells have a date on file. What each class means.
An old well on land in Kansas?
8 wells in Kansas were plugged at the State’s expense, out of 825 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 |
|---|---|---|---|---|---|
| Kircher, Omer O-44 API 15-121-28638 | Osborn Energy, L.l.c | Forest City Coal Gas Area | 673 | 2008 | State |
| Kircher, Omer O-45 API 15-121-28639 | Osborn Energy, L.l.c | Forest City Coal Gas Area | 650 | 2008 | State |
| Kircher, Omer O-47 API 15-121-28641 | Osborn Energy, L.l.c | Forest City Coal Gas Area | 651 | 2008 | State |
| Kircher, Omer O-41 API 15-121-28635 | Osborn Energy, L.l.c | Forest City Coal Gas Area | 860 | 2008 | State |
| Kircher 1 API 15-121-27726 | Osborn Energy, L.l.c | Louisburg | 680 | 2003 | State |
| Kircher, Hazel 7-9 API 15-121-27728 | Osborn Energy, L.l.c | Louisburg | 680 | 2003 | State |
| Emmerton 1 API 15-195-21500 | Foxfire Exploration, INC | Demurry Southeast | 3870 | 1984 | State |
| Wolf 1 API 15-195-21355 | Tam Oil & Gas | Hixson Northeast | 3880 | 1983 | State |
| Adams Trust 1 API 15-119-21304 | Quinque Operating CO | Adams Ranch | 6600 | 2024 | — |
| Wolverine 3 API 15-055-22603 | Merit Energy Company, LLC | Wolves Northwest | 5115 | 2024 | — |
| Kyw Unit 1 API 15-109-21671 | Darrah Oil Company, LLC | Eagle Bluff West | 4701 | 2024 | — |
| Younkin 1-12 API 15-109-21672 | Darrah Oil Company, LLC | Shs North | 4541 | 2024 | — |
| Windholz 25-1 API 15-195-23172 | Basin Operating Services, LLC | Mong | 4105 | 2024 | — |
| Sharp #4 API 15-063-22455 | Arp Operating, LLC | Gaeland Township East | 4720 | 2024 | — |
| Wrangler 2 API 15-195-23152 | Nec Operating - Kansas, LLC | Unnamed | 4150 | 2023 | — |
| Wright 1-5 API 15-171-21303 | Landmark Resources, INC | Unnamed | 5025 | 2023 | — |
| Herl Trust 'a' 1-16 API 15-101-21797-0001 | Darrah Oil Company, LLC | Pendennis North | 4620 | 2023 | — |
| Fisher Unit 35-1 API 15-023-21591 | Arcadian Resources, LLC | Unnamed | 4874 | 2023 | — |
| Wrangler 4 API 15-195-23154 | Nec Operating - Kansas, LLC | Rinker East | 4235 | 2023 | — |
| Wrangler 5 API 15-195-23155 | Nec Operating - Kansas, LLC | Zeman West | 4145 | 2023 | — |
| Fisher 27-1 API 15-023-21596 | Arcadian Resources, LLC | Unnamed | 4745 | 2023 | — |
| Wrangler 3 API 15-195-23156 | Nec Operating - Kansas, LLC | Unnamed | 4070 | 2023 | — |
| Il Farms 2-1 API 15-203-20380 | Shakespeare Oil Co., INC | Unnamed | 4936 | 2023 | — |
| Fisher 22-1 API 15-023-21618 | Arcadian Resources, LLC | Unnamed | 3122 | 2023 | — |
| Liam 3 API 15-193-21098 | Arcadian Resources, LLC | Unnamed | 4653 | 2022 | — |
| Casablanca 1 API 15-171-21285 | Palomino Petroleum, INC | Unnamed | 4920 | 2022 | — |
| Kreutzer 1 API 15-203-20373 | Raymond Oil Company, INC | Unnamed | 5200 | 2022 | — |
| Cale 2-27 API 15-063-22410 | Shakespeare Oil Co., INC | Cale | 4560 | 2022 | — |
| Lhr 2-26 API 15-181-20645 | Chizum Oil, LLC | Gertrude Northwest | 4870 | 2022 | — |
| Decker 10 API 15-171-21290 | Landmark Resources, INC | — | 4925 | 2022 | — |
| Wrangler 1 API 15-195-23151 | Nec Operating - Kansas, LLC | Unnamed | 4192 | 2022 | — |
| Mcdaniel Trust 1-18 API 15-109-21608 | Cobalt Energy LLC | Touchstone West | 4603 | 2021 | — |
| Mac Trust 1-19 API 15-109-21629 | Cobalt Energy LLC | — | 4666 | 2021 | — |
| Cv 1-9 API 15-051-26983 | Arp Operating, LLC | Sweet William Northwest | 4044 | 2020 | — |
| Carrie 15-1 API 15-093-21978 | Merit Energy Company, LLC | Wildcat | 5000 | 2020 | — |
| Cv 2-9 API 15-051-26984 | Arp Operating, LLC | Sweet William Northwest | 4059 | 2020 | — |
| Double Bar X 1-17 API 15-203-20353 | Landmark Resources, INC | Wilbur Southeast | 4880 | 2019 | — |
| Decker 1-6 API 15-171-21217 | Eagle Creek Corp | Wildcat | 4970 | 2018 | — |
| Radnor 'a' 1-30 API 15-109-21540 | Cobalt Energy LLC | — | 4681 | 2018 | — |
| Kyle 1-27 API 15-109-21542 | Cmx, INC | Wildcat | 4725 | 2018 | — |
| Minium R 1-31 API 15-179-21445 | Culbreath Oil & Gas Company, INC | — | 4399 | 2018 | — |
| Binns 'b' 1-32 API 15-109-21553 | Cobalt Energy LLC | — | 4728 | 2018 | — |
| Wright Farms 1-2 API 15-181-20614 | Val Energy, INC | Gertrude Southwest | 5000 | 2018 | — |
| Frahm Unit 1-16 API 15-193-21023 | Val Energy, INC | Levant South | 4890 | 2018 | — |
| Dirks 1 API 15-109-21557 | Palomino Petroleum, INC | Wing Southeast | 4953 | 2018 | — |
| Mcdaniel 1-1 API 15-109-21567 | Concorde Resources Corporation | Wildcat | 4615 | 2018 | — |
| Mcdaniel 1a-19 API 15-109-21570 | Concorde Resources Corporation | Wildcat | 4653 | 2018 | — |
| Lee 1-21 API 15-203-20350 | Landmark Resources, INC | Wildcat | 4840 | 2018 | — |
| Beeson 5-1 API 15-171-21190 | Landmark Resources, INC | Capstone East | 4830 | 2017 | — |
| Mcdaniel 1-27 API 15-109-21492 | Concorde Resources Corporation | Wildcat | 4708 | 2017 | — |
| Alan Unit 1-26 API 15-203-20314 | Mull Drilling Company, INC | Wildcat | 5000 | 2017 | — |
| Noll 1-21 API 15-171-20986-0001 | Hartman Oil Co., INC | Isbel North | 4990 | 2017 | — |
| Lang 1-12 API 15-203-20316 | Lario Oil & Gas Company | Wildcat | 5100 | 2017 | — |
| Scott Community 1-3 API 15-171-21206 | Shakespeare Oil Co., INC | Wildcat | 4930 | 2017 | — |
| Wing-dvorachek 1 API 15-109-21507 | Ritchie Exploration, INC | Wildcat | 4900 | 2017 | — |
| Johnson-rapier 1-24 API 15-203-20320 | Eagle Creek Corporation | Wildcat | 4702 | 2017 | — |
| Knobbe 1-4 API 15-203-20322 | Lario Oil & Gas Company | Wildcat | 5000 | 2017 | — |
| Redding 1-3 API 15-203-20325 | Mull Drilling Company, INC | Wildcat | 4980 | 2017 | — |
| Garden City T 3 API 15-055-22205-0001 | Merit Energy Company, LLC | Redwood Southeast | 5102 | 2017 | — |
| Binns 'a' 1-32 API 15-109-21454 | Cobalt Energy LLC | Binns | 4794 | 2016 | — |
| Koehn 3-10 API 15-171-21117-0001 | K3 Oil & Gas Operating Company | Whitesand Creek Southeast | 4950 | 2016 | — |
| Baker Ha Unit 1 API 15-203-20308 | Palomino Petroleum, INC | Adobe Road | 4824 | 2016 | — |
| Jones 19-1 API 15-055-22438 | Merit Energy Company, LLC | Plymell Northwest | 5200 | 2016 | — |
| Kistler 2-14 API 15-193-20976 | Slawson Exploration Company, INC | Wildcat | 4800 | 2016 | — |
| Gano 3-17 API 15-093-21943-0001 | American Warrior, INC | Lakin Northwest | 5050 | 2016 | — |
| Leroy Shaw 1 API 15-179-21358 | Pioneer Oil Company, INC | Unnamed | 4120 | 2015 | — |
| Reed 1-11 API 15-035-24620 | Lawco Holdings, LLC | Wildcat | 3469 | 2015 | — |
| Koehn 3-10 API 15-171-21117 | K3 Oil & Gas Operating Company | Whitesand Creek Southeast | 4950 | 2015 | — |
| Heyd 2-14 API 15-171-21122 | Red Oak Energy, INC | Rudolph Northeast | 4725 | 2015 | — |
| Harold Michaelis Family Trust 1 API 15-109-21383 | Palomino Petroleum, INC | Dirks West | 4923 | 2015 | — |
| Walker 1-25 API 15-203-20303 | Red Oak Energy, INC | Wildcat | 4912 | 2015 | — |
| Downing Trust 1-1 API 15-193-20949 | Brito Oil Company, INC | Wildcat | 4890 | 2015 | — |
| Wesseler Trust 1-34 API 15-171-21132 | Landmark Resources, INC | Pence South | 4880 | 2015 | — |
| Otis P. Dewey Trust 1-4 API 15-153-21153 | Culbreath Oil & Gas Company, INC | Wildcat | 4822 | 2015 | — |
| Manley 'a' 1 API 15-093-21884-0001 | Merit Energy Company, LLC | Beymer | 4875 | 2015 | — |
| Walker 1-31 API 15-035-24644 | Lawco Holdings, LLC | Wildcat | 3496 | 2015 | — |
| Prime Pork 1-11 API 15-171-20962 | Hartman Oil Co., INC | Prime Pork | 4990 | 2014 | — |
| 12-22-4 H4 API 15-195-22881-0100 | Samuel Gary Jr. and Assoc., INC | Shaw Creek South | 4035 | 2014 | — |
| Kuhlman 11-2 API 15-093-21896 | Hartman Oil Co., INC | Wildcat | 5122 | 2014 | — |
| Hall 10 API 15-081-22050 | Oxy Usa, INC | — | 5280 | 2014 | — |
| Lynd Family Trust 13-1 API 15-195-22917 | Circle Star Operating Corp | Stratton | 4031 | 2014 | — |
| 12-22-8 H4 API 15-195-22930-0100 | Samuel Gary Jr. and Assoc., INC | Wildcat | 4893 | 2014 | — |
| Fisher 'a' 1-35 API 15-023-21386 | Cobalt Energy LLC | Wildcat | 5032 | 2014 | — |
| Beeson Trust 4-1 API 15-171-21038 | Landmark Resources, INC | Wildcat | 4870 | 2014 | — |
| Felt Farm 2-11 API 15-203-20260 | Lario Oil & Gas Company | Felt | 5100 | 2014 | — |
| Dairy 1-18 API 15-171-21070 | Stelbar Oil Corporation, INC | Wildcat | 4947 | 2014 | — |
| Muench 1-16 API 15-171-21074 | New Gulf Operating LLC | Rudolph Northwest | 4815 | 2014 | — |
| Farr 1-11 API 15-171-21075 | New Gulf Operating LLC | Prime Pork | 4970 | 2014 | — |
| Kim 2 API 15-101-22526 | Palomino Petroleum, INC | Stone Knife Southeast | 4780 | 2014 | — |
| Baird Rev Trust 1 API 15-193-20931 | Raymond Oil Company, INC | Wildcat | 4876 | 2014 | — |
| Farr 2-11 API 15-171-21094 | New Gulf Operating LLC | Prime Pork | 4950 | 2014 | — |
| Bahm 2-21 API 15-171-21101 | Shakespeare Oil Co., INC | Wildcat | 4890 | 2014 | — |
| Helen Wells Trust 1 API 15-203-20192 | Raymond Oil Co., INC | Wildcat | 5003 | 2013 | — |
| Moore 1-9 API 15-171-20918 | Abercrombie Energy, LLC | Whitesand Creek South | 4982 | 2013 | — |
| Dreiling 'b' 6 API 15-051-26439 | Damar Resources, INC | Pleasant | 3955 | 2013 | — |
| Miller 6 API 15-083-21872 | Jones & Buck Development | Hanston-oppy | 4513 | 2013 | — |
| Captain Kirk 1 API 15-171-20927 | New Gulf Operating LLC | Star Trek | 4950 | 2013 | — |
| Colburn Tucker 2-18 API 15-203-20205 | Lario Oil and Gas CO | Rees Ranch | 5223 | 2013 | — |
| Dinkel 11 API 15-051-26164-0001 | Dane G. Hansen Trust | Pleasant West | 4000 | 2013 | — |
| Dorzweiler 2-35 API 15-195-22853 | Downing-nelson Oil Co. INC | Agmar Northeast | 4114 | 2013 | — |
| Berning 1-3 API 15-203-20209 | Lario Oil and Gas CO | Felt Northwest | 5200 | 2013 | — |
| Moore 1-27 API 15-171-20937 | New Gulf Operating LLC | Isbel North | 4935 | 2013 | — |
| Ostmeyer 1-20 API 15-193-20889 | Culbreath Oil and Gas Co., INC | Ottley West | 4676 | 2013 | — |
| Marge 1-31 API 15-109-21172 | New Gulf Operating LLC | Lone Butte Southwest | 4740 | 2013 | — |
| Shubert 11-21-31-h1 API 15-195-22863-0100 | Samuel Gary Jr. and Assoc., INC | Shaw Creek Southeast | 4803 | 2013 | — |
| Rocking R Farms 1 API 15-171-20953 | Palomino Petroleum, INC | Whitesand Creek South | 5021 | 2013 | — |
| 11-21-29 H1 API 15-195-22865-0100 | Samuel Gary Jr. and Assoc., INC | Wildcat | 8458 | 2013 | — |
| 12-22-9 H2 API 15-195-22868-0100 | Samuel Gary Jr. and Assoc., INC | Rinker Southeast | 4571 | 2013 | — |
| Janzen 1-34 API 15-171-20956 | Shakespeare Oil Co., INC | Wildcat | 4895 | 2013 | — |
| 12-22-8 H3 API 15-195-22882-0100 | Samuel Gary Jr. and Assoc., INC | Wildcat | 4639 | 2013 | — |
| Carpentier-conner Unit 43-28 API 15-101-22332-0001 | Flatirons Resources LLC | Amy | 4650 | 2013 | — |
| Gaschler-krause Unit 1-20 API 15-171-20982 | Lario Oil and Gas CO | Unnamed | 5000 | 2013 | — |
| Beeson Trust 1-1 API 15-171-20985 | Landmark Resources, INC | Wildcat | 4830 | 2013 | — |
| Gerstberger 1-29 API 15-203-20233 | Murfin Drilling Co., INC | Gerstberger East | 4915 | 2013 | — |
| Winter Land and Cattle 1 API 15-083-21900 | Becker Oil Corporation | Saw Log Creek | 4570 | 2013 | — |
| Schamberger 1 API 15-179-21283 | Pioneer Oil Co., INC | Freda | 4065 | 2012 | — |
| Kwt 1-6 API 15-135-25315 | Mull Drilling Co., INC | Waring | 4490 | 2012 | — |
| Holstein Ley 1 API 15-203-20172 | Raymond Oil Co., INC | Holstein Northeast | 5156 | 2012 | — |
| Hentschel 'b' 2 API 15-129-21937 | Oxy Usa, INC | Mustang East | 3910 | 2012 | — |
| Sauer 3-21h API 15-195-22780-0100 | Mid-con Energy Operating, INC | Riga South | 4379 | 2012 | — |
| Danis 1-21 API 15-101-22372 | Larson Operating CO | Reifschneider Southeast | 4656 | 2012 | — |
| Thompson 'b' 6 API 15-081-21112-0001 | Oxy Usa, INC | Victory | 4875 | 2012 | — |
| Frey 'f' 2 API 15-081-21259-0001 | Oxy Usa | Pleasant Prairie Southeast | 5350 | 2012 | — |
| David 1-32 API 15-171-20874-0001 | New Gulf Operating LLC | Beaver Lodge | 5080 | 2012 | — |
| Wilkinson 1-22 API 15-171-20913 | Hartman Oil Co., INC | Isbel North | 4950 | 2012 | — |
| Colburn Tucker 1-18 API 15-203-20194 | Lario Oil and Gas CO | Rees Ranch | 5250 | 2012 | — |
| Wwwm 1-4 API 15-109-21143 | Murfin Drilling Co., INC | High Hat | 4745 | 2012 | — |
| Barlow 1 API 15-055-22092 | Lebsack Oil Production, INC | Damme | 4850 | 2011 | — |
| Hansen 24-28 API 15-101-22288 | Flatirons Resources LLC | Amy | 4620 | 2011 | — |
| Pfenninger 'c' 1 API 15-171-20764-0001 | Fiml Natural Resources, LLC | Mckean East | 4804 | 2011 | — |
| Holstein 1 API 15-203-20162 | Raymond Oil Co., INC | Wildcat | 5183 | 2011 | — |
| Black 'c' 1 API 15-081-21941 | Oxy Usa, INC | Victory | 5670 | 2011 | — |
| Stone 1-19 API 15-055-22103 | Berexco, LLC | Ivanhoe Southwest | 5313 | 2011 | — |
| Usa 'c' 5 API 15-081-21897-0001 | — | Pleasant Prairie | 5350 | 2011 | — |
| Williams 'i' 2 API 15-081-21947 | Oxy Usa, INC | Victory | 5503 | 2011 | — |
| Nichols 1-15 API 15-171-20827 | Shakespeare Oil Co., INC | Radnor | 4900 | 2011 | — |
| Ostmeyer 1-11 API 15-193-20818 | Brito Oil Company, Inc./carmen Schmitt, INC | Albers Southwest | 4698 | 2011 | — |
| Barnhart-wilkinson 2-18 API 15-171-20837 | Eagle Creek Corp | Beaver Cliff | 4925 | 2011 | — |
| G & G Smith 1 API 15-203-20167 | Raymond Oil Co., INC | Holstein Northeast | 5196 | 2011 | — |
| Goering 1-36 API 15-171-20849 | Abercrombie Energy, LLC | Grigston Northeast | 4637 | 2011 | — |
| Hansen 24-28 API 15-101-22288-0001 | Flatirons Resources LLC | Amy | 4620 | 2011 | — |
| Winter 'd' 1 API 15-129-21678-0002 | — | Mustang East | 5100 | 2011 | — |
| Frey Morrow Unit 201 API 15-081-21293-0001 | Oxy Usa, INC | Pleasant Prairie Southeast | 5301 | 2011 | — |
| Winter 14-n8-30-33 API 15-081-21678-0002 | — | Victory | 5733 | 2011 | — |
| Leonard 1-30 API 15-081-21881 | Hj, INC | Arapahoe | 5800 | 2010 | — |
| Mueller C-2 API 15-125-31937 | Colt Energy INC | Coffeyville-cherryvale | 665 | 2010 | — |
| Mueller C-1 API 15-125-31936 | Colt Energy INC | Coffeyville-cherryvale | 665 | 2010 | — |
| Mueller Cdi 2 API 15-125-31940 | Colt Energy INC | — | 640 | 2010 | — |
| Mueller B-1 API 15-125-31931 | Colt Energy INC | Coffeyville-cherryvale | 660 | 2010 | — |
| Mueller C-3 API 15-125-31938 | Colt Energy INC | Coffeyville-cherryvale | 670 | 2010 | — |
Other formations
- Squirrel 11,151
- 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
- Mrw L 809
- Chester 732
- Simpson 678
- Lansing Kansas City 576
- Mrw U 514
- Tucker 497
- Council Grove 417