The Unnamed field
4,310 wells — 0.8% of the Kansas register.
What stands out in the Unnamed field
The operator named on most of these records is Murfin Drilling Co., INC, on 102 of them (2.4%), ahead of Sandridge Exploration and Production LLC (78) and Oxy Usa, INC (66). The oldest well here was completed in 1900 and the most recent in 2026, and the deepest reaches 9906 feet — Jones 3506 1-13h, drilled in 2013.
| Measurement | Median | 90th percentile | Kansas median |
|---|---|---|---|
| Total depth | 3651 ft | 5150 ft | 2831 ft — deeper here |
What happened to these wells — in the Unnamed field
2,396 of the 4,310 wells in the Unnamed field are classed as plugged and abandoned. 4 were plugged at the State’s expense because no responsible party could be found, and 106 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, 1,343 of these wells have a date on file. What each class means.
Producing formations
| Formation | Wells | Share |
|---|---|---|
| Arbuckle | 292 | 6.8% |
| Mississippian | 235 | 5.5% |
| Lansing-kansas City | 126 | 2.9% |
| Mississippi | 122 | 2.8% |
| St Louis | 106 | 2.5% |
| Bartlesville | 98 | 2.3% |
| Lansing | 86 | 2.0% |
| Morrow | 63 | 1.5% |
| Viola | 45 | 1.0% |
| Arbuckle, Lansing Kansas City | 43 | 1.0% |
The formation is recorded on only 21 % of Kansas wells, so this table describes the minority that carry one.
Where the field lies
| County | Wells | Share |
|---|---|---|
| Cowley | 273 | 6.3% |
| Butler | 208 | 4.8% |
| Ellis | 149 | 3.5% |
| Sumner | 147 | 3.4% |
| Greenwood | 116 | 2.7% |
| Ness | 115 | 2.7% |
| Pawnee | 109 | 2.5% |
| Marion | 108 | 2.5% |
| Coffey | 99 | 2.3% |
| Graham | 98 | 2.3% |
| Sedgwick | 98 | 2.3% |
| Barton | 95 | 2.2% |
Who operates there
| Operator | Wells | Share |
|---|---|---|
| Murfin Drilling Co., INC | 102 | 2.4% |
| Sandridge Exploration and Production LLC | 78 | 1.8% |
| Oxy Usa, INC | 66 | 1.5% |
| Merit Energy Company, LLC | 53 | 1.2% |
| S & K Oil Production, INC | 49 | 1.1% |
| Altavista Energy, INC | 49 | 1.1% |
| E.h. Adair Oil CO | 45 | 1.0% |
| American Warrior, INC | 45 | 1.0% |
| Downing-nelson Oil CO INC | 36 | 0.8% |
| Ritchie Exploration, INC | 34 | 0.8% |
| Shakespeare Oil Co., INC | 34 | 0.8% |
| Tdi, INC | 33 | 0.8% |
| Arcadian Resources, LLC | 31 | 0.7% |
| Palomino Petroleum, INC | 29 | 0.7% |
An old well on land in Kansas?
4 wells in Kansas were plugged at the State’s expense, out of 4,310 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 |
|---|---|---|---|---|---|
| Roberts 1 API 15-073-23127 | Kickapoo Prod | Unnamed | 1440 | 1984 | State |
| Lee 2-21 API 15-093-20737 | Merit Energy | Unnamed | 5140 | 1981 | State |
| Cooper 3 API 15-035-21982 | Morris Craig Oil | Unnamed | 3087 | 1978 | State |
| Anderson, D 7-1 API 15-065-24090-0001 | The Mustang, LLC | Unnamed | 4297 | — | State |
| Quenzer 27-5 API 15-181-20656 | Chizum Oil, LLC | Unnamed | 4980 | 2026 | — |
| Penny 1 API 15-051-27134 | C G Oil, INC | Unnamed | 3460 | 2026 | — |
| Hummer 16d-28 API 15-205-28574 | Redbud Oil & Gas Operating, LLC | Unnamed | 1280 | 2026 | — |
| Swisher I 24 API 15-011-24941 | S & K Oil Production, INC | Unnamed | 687 | 2026 | — |
| Swisher I 25 API 15-011-24942 | S & K Oil Production, INC | Unnamed | 682 | 2026 | — |
| Swisher 33 API 15-011-24943 | S & K Oil Production, INC | Unnamed | 722 | 2026 | — |
| Swisher 36 API 15-011-24944 | S & K Oil Production, INC | Unnamed | 682 | 2026 | — |
| Swisher 37 API 15-011-24946 | S & K Oil Production, INC | Unnamed | 691 | 2026 | — |
| Bell 1-21 API 15-153-21361 | Downing-nelson Oil CO INC | Unnamed | 4968 | 2026 | — |
| Swisher I 21 API 15-011-24947 | S & K Oil Production, INC | Unnamed | 706 | 2026 | — |
| Goltl Owwo 1-8 API 15-153-21314-0001 | Downing-nelson Oil CO INC | Unnamed | 4774 | 2026 | — |
| Helen 3-16 API 15-153-21362 | Downing-nelson Oil CO INC | Unnamed | 4816 | 2026 | — |
| Jean 1-31 API 15-153-21364 | Downing-nelson Oil CO INC | Unnamed | 4847 | 2026 | — |
| Terwilliger 34-2 Owwo API 15-101-21874-0001 | Talon Group LLC | Unnamed | 4640 | 2026 | — |
| Gravity 1 API 15-099-24728 | Basin Operating Services, LLC | Unnamed | 5998 | 2026 | — |
| Rost 2-26 API 15-057-21107 | M3 Helium Corp | Unnamed | 5570 | 2026 | — |
| Pdp 1-33 API 15-193-21155 | American Warrior, INC | Unnamed | 4507 | 2026 | — |
| Ronald 1-27 API 15-193-21156 | American Warrior, INC | Unnamed | 4570 | 2026 | — |
| Six B 3b 1 API 15-137-20777 | Ritchie Exploration, INC | Unnamed | 3944 | 2026 | — |
| Carroll 1-6 API 15-191-22874 | Blueridge Petroleum Corporation | Unnamed | 4250 | 2026 | — |
| Lang-marx Unit 1 API 15-137-20778 | Ritchie Exploration, INC | Unnamed | 3882 | 2026 | — |
| Roesener 1-8 API 15-153-21368 | Downing-nelson Oil CO INC | Unnamed | 4929 | 2026 | — |
| Breshears 10 API 15-103-21474 | Schmidt Construction Services LLC | Unnamed | 760 | 2026 | — |
| Breshears 9 API 15-103-21475 | Schmidt Construction Services LLC | Unnamed | 760 | 2026 | — |
| Polifka 1-3 API 15-063-22488 | Shakespeare Oil Co., INC | Unnamed | 4500 | 2026 | — |
| Kells I-5 API 15-081-22299 | Eiger Operating Company, LLC | Unnamed | 5662 | 2026 | — |
| Roesener 2-8 API 15-153-21369 | Downing-nelson Oil CO INC | Unnamed | 4830 | 2026 | — |
| Mary 2-34 API 15-193-21164 | American Warrior, INC | Unnamed | 4545 | 2026 | — |
| Marjorie Crotts I-34 API 15-031-24691 | Altavista Energy, INC | Unnamed | 1116 | 2025 | — |
| Marjorie Crotts I-33 API 15-031-24693 | Altavista Energy, INC | Unnamed | 1106 | 2025 | — |
| Marjorie Crotts I-32 API 15-031-24697 | Altavista Energy, INC | Unnamed | 1092 | 2025 | — |
| Brobee Swd 1-26 API 15-057-20828-0002 | Sanguine Resources, LLC | Unnamed | 6630 | 2025 | — |
| Sue Duroche 3 API 15-161-20086 | Hyt Operating LLC | Unnamed | 3453 | 2025 | — |
| Blythe 13-20 API 15-127-20606 | Hyt Operating LLC | Unnamed | 5300 | 2025 | — |
| Marjorie Crotts 36 API 15-031-24703 | Altavista Energy, INC | Unnamed | 1108 | 2025 | — |
| Sauder 17 API 15-031-24705 | Altavista Energy, INC | Unnamed | 1095 | 2025 | — |
| Marlene 1-32 API 15-101-22698 | Shakespeare Oil Co., INC | Unnamed | 4580 | 2025 | — |
| Wells 2-27 API 15-203-20394 | Shakespeare Oil Co., INC | Unnamed | 4898 | 2025 | — |
| Steckel/darney 5 API 15-109-21680 | Raymond Oil Company, INC | Unnamed | 4700 | 2025 | — |
| Hush 6-9 API 15-119-21491 | O'brien Energy Resources Corp | Unnamed | 6000 | 2025 | — |
| Wilkinson Trust 1-5 API 15-171-21335 | Landmark Resources, INC | Unnamed | 4979 | 2025 | — |
| Marjorie Crotts I-35 API 15-031-24714 | Altavista Energy, INC | Unnamed | 1111 | 2025 | — |
| Marjorie Crotts I-42 API 15-031-24717 | Altavista Energy, INC | Unnamed | 1070 | 2025 | — |
| Davis 6 API 15-015-24239 | Aztec Oil Operating LLC | Unnamed | 1132 | 2025 | — |
| Twin Valley Enterprises C3-13 API 15-125-32567 | Redbud Oil & Gas Operating, LLC | Unnamed | 1325 | 2025 | — |
| Napeste 2-30 API 15-055-22622 | Merit Energy Company, LLC | Unnamed | 5110 | 2025 | — |
| Burnt Hills Ranch P-18 API 15-205-28561 | Cherokee Wells LLC | Unnamed | 1259 | 2025 | — |
| Double K 1 API 15-191-22866 | Agv Corp | Unnamed | 4200 | 2025 | — |
| Marjorie Crotts I-43 API 15-031-24719 | Altavista Energy, INC | Unnamed | 1076 | 2025 | — |
| Doll 1 API 15-055-22630 | Bonanza Carbon Capture, LLC | Unnamed | 6587 | 2025 | — |
| Pratt Energy Azm-1 1 API 15-151-22610 | Pratt Energy, LLC | Unnamed | 4515 | 2025 | — |
| Twin Valley Enterprises C4-13 API 15-125-32569 | Redbud Oil & Gas Operating, LLC | Unnamed | 1325 | 2025 | — |
| Kennedy D Owwo 1 API 15-179-20290-0001 | Castle Resources, INC | Unnamed | 3952 | 2025 | — |
| Beougher 11c-25-1329 API 15-063-22467 | Us Oil Resources LLC | Unnamed | 4575 | 2025 | — |
| Schauer 1-20 API 15-023-21672 | Murfin Drilling Co., INC | Unnamed | 5200 | 2025 | — |
| Mccoy 1 API 15-197-20327 | Hyt Operating LLC | Unnamed | 5562 | 2025 | — |
| Smith 1-36 API 15-093-22023 | Mull Drilling Company, INC | Unnamed | 5190 | 2025 | — |
| Vogler 1-20 API 15-109-21690 | Murfin Drilling Co., INC | Unnamed | 4755 | 2025 | — |
| Moos Family Farms 1-10 API 15-063-22475 | M G Oil INC | Unnamed | 4592 | 2025 | — |
| Hege 1-1 API 15-191-22868 | Blueridge Petroleum Corporation | Unnamed | 3157 | 2025 | — |
| Blowin Sands Unit 1 API 15-151-22615 | Thomas Garner, INC | Unnamed | 4545 | 2025 | — |
| Parke 1-24 API 15-195-23186 | Phillips Exploration Company L.c | Unnamed | 3585 | 2025 | — |
| Bradshaw 9d 1 API 15-193-21151 | Ritchie Exploration, INC | Unnamed | 4750 | 2025 | — |
| Stackhouse Owwo 1 API 15-051-26332-0001 | Castle Resources, INC | Unnamed | 3850 | 2025 | — |
| Sadie Grace 1-13 API 15-175-22297 | Agricultural Energy Services | Unnamed | 6170 | 2025 | — |
| Swisher I 23 API 15-011-24940 | S & K Oil Production, INC | Unnamed | 727 | 2025 | — |
| Swisher 38 API 15-011-24945 | S & K Oil Production, INC | Unnamed | 720 | 2025 | — |
| L & M Unit 1-33 API 15-151-22555 | Shelby Resources LLC | Unnamed | 4915 | 2024 | — |
| Ireland 1 API 15-207-29931 | Owens Oil Company, LLC | Unnamed | 1240 | 2024 | — |
| Marjorie Crotts I-16 API 15-031-24685 | Altavista Energy, INC | Unnamed | 1102 | 2024 | — |
| Marjorie Crotts I-13 API 15-031-24686 | Altavista Energy, INC | Unnamed | 1099 | 2024 | — |
| Marjorie Crotts I-14 API 15-031-24687 | Altavista Energy, INC | Unnamed | 1094 | 2024 | — |
| Marjorie Crotts I-15 API 15-031-24688 | Altavista Energy, INC | Unnamed | 1096 | 2024 | — |
| Ff 1-10 API 15-153-21323 | Downing-nelson Oil CO INC | Unnamed | 4958 | 2024 | — |
| Hartwich 1 API 15-197-20323 | Castle Resources, INC | Unnamed | 2845 | 2024 | — |
| Mlp Elmo 1-11 API 15-067-21464-0001 | Pantera Energy Company | Unnamed | 5700 | 2024 | — |
| King 1-36 API 15-191-22863 | Union Valley Petroleum Corporation | Unnamed | 4675 | 2024 | — |
| Mong Benno 3 API 15-195-23169 | Staab Oil Co., A General Partnership | Unnamed | 4250 | 2024 | — |
| Barnes Trust 2 API 15-009-26416 | Mai Oil Operations, INC | Unnamed | 3590 | 2024 | — |
| Hjv Lahey A 2 API 15-067-21522-0001 | Pantera Energy Company | Unnamed | 5596 | 2024 | — |
| Holsman 2-4 API 15-065-24314 | American Warrior, INC | Unnamed | 3660 | 2024 | — |
| Doug Rozean 1-23 API 15-195-23174 | New Age Oil LLC | Unnamed | 4162 | 2024 | — |
| Svt 2-3 API 15-081-22272 | Presley Operating LLC | Unnamed | 5515 | 2024 | — |
| Blackwelder 2-30 API 15-151-22591 | Trek Aec, LLC | Unnamed | 5100 | 2024 | — |
| Sharp 2 API 15-063-22449 | Arp Operating, LLC | Unnamed | 4622 | 2024 | — |
| Sharp 3 API 15-063-22450 | Arp Operating, LLC | Unnamed | 4604 | 2024 | — |
| Marjorie Crotts 31 API 15-031-24690 | Altavista Energy, INC | Unnamed | 1113 | 2024 | — |
| Marjorie Crotts 33 API 15-031-24692 | Altavista Energy, INC | Unnamed | 1146 | 2024 | — |
| Marjorie Crotts 34 API 15-031-24694 | Altavista Energy, INC | Unnamed | 1155 | 2024 | — |
| Marjorie Crotts 35 API 15-031-24696 | Altavista Energy, INC | Unnamed | 1121 | 2024 | — |
| Marjorie Crotts I-31 API 15-031-24698 | Altavista Energy, INC | Unnamed | 1110 | 2024 | — |
| Mw 1 API 15-167-24143 | Purefield Carbon Capture, LLC | Unnamed | 3770 | 2024 | — |
| Willbanks 1-9 API 15-033-21800 | Thoroughbred Associates L.l.c | Unnamed | 5960 | 2024 | — |
| Marjorie Crotts 39 API 15-031-24699 | Altavista Energy, INC | Unnamed | 1110 | 2024 | — |
| Marjorie Crotts 38 API 15-031-24700 | Altavista Energy, INC | Unnamed | 1112 | 2024 | — |
| Marjorie Crotts 37 API 15-031-24701 | Altavista Energy, INC | Unnamed | 1121 | 2024 | — |
| Mcmu 2 API 15-067-21876-0001 | Pantera Energy Company | Unnamed | 5450 | 2024 | — |
| Marjorie Crotts 40 API 15-031-24702 | Altavista Energy, INC | Unnamed | 1125 | 2024 | — |
| Gano 1-1 API 15-065-24317 | Arp Operating, LLC | Unnamed | 4072 | 2024 | — |
| Bowling 1-19 Owwo API 15-035-24666-0001 | Val Energy, INC | Unnamed | 3850 | 2024 | — |
| Steve George I S 1 API 15-011-24855 | S & K Oil Production, INC | Unnamed | 715 | 2024 | — |
| Steve George I S 2 API 15-011-24856 | S & K Oil Production, INC | Unnamed | 675 | 2024 | — |
| Steve George I S 3 API 15-011-24857 | S & K Oil Production, INC | Unnamed | 710 | 2024 | — |
| Steve George I S 4 API 15-011-24858 | S & K Oil Production, INC | Unnamed | 722 | 2024 | — |
| Steve George I S 5 API 15-011-24859 | S & K Oil Production, INC | Unnamed | 706 | 2024 | — |
| Steve George I S 6 API 15-011-24860 | S & K Oil Production, INC | Unnamed | 716 | 2024 | — |
| Steve George S 8 API 15-011-24867 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Steve George S 5 API 15-011-24862 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Steve George S 6 API 15-011-24863 | S & K Oil Production, INC | Unnamed | 654 | 2024 | — |
| Steve George S 7 API 15-011-24864 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Steve George I S 10 API 15-011-24865 | S & K Oil Production, INC | Unnamed | 682 | 2024 | — |
| Steve George I S 9 API 15-011-24866 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Steve George I S 11 API 15-011-24868 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Steve George I S 7 API 15-011-24869 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Steve George S 4 API 15-011-24870 | S & K Oil Production, INC | Unnamed | 696 | 2024 | — |
| Steve George I S 8 API 15-011-24871 | S & K Oil Production, INC | Unnamed | 706 | 2024 | — |
| Steve George S 3 API 15-011-24872 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Steve George S 1 API 15-011-24873 | S & K Oil Production, INC | Unnamed | 706 | 2024 | — |
| Steve George S 2 API 15-011-24874 | S & K Oil Production, INC | Unnamed | 709 | 2024 | — |
| Napeste 3-29 API 15-055-22613 | Merit Energy Company, LLC | Unnamed | 5100 | 2024 | — |
| Stacy 2-24 API 15-055-22615 | Berexco LLC | Unnamed | 5220 | 2024 | — |
| O'brate-finney 2-5 Owwo API 15-055-22369-0002 | American Warrior, INC | Unnamed | 4900 | 2024 | — |
| Gleason Trust 34a 1 API 15-083-22040 | Ritchie Exploration, INC | Unnamed | 4604 | 2024 | — |
| Park #1 API 15-127-20608 | C & G Drilling, INC | Unnamed | 2510 | 2024 | — |
| Rise #1 API 15-127-20609 | C & G Drilling, INC | Unnamed | 2510 | 2024 | — |
| Steve George Wsw 1 API 15-011-24876 | S & K Oil Production, INC | Unnamed | 1322 | 2024 | — |
| Steve George S 9 API 15-011-24875 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Page I 7 API 15-011-24892 | S & K Oil Production, INC | Unnamed | 722 | 2024 | — |
| Page I 9 API 15-011-24893 | S & K Oil Production, INC | Unnamed | 689 | 2024 | — |
| Swisher Iu 13 API 15-011-24894 | S & K Oil Production, INC | Unnamed | 682 | 2024 | — |
| Swisher Iu 12 API 15-011-24895 | S & K Oil Production, INC | Unnamed | 687 | 2024 | — |
| Czirr 1 API 15-197-20325 | Castle Resources, INC | Unnamed | 3300 | 2024 | — |
| Page I 38 API 15-011-24896 | S & K Oil Production, INC | Unnamed | 688 | 2024 | — |
| Page I 30 API 15-011-24897 | S & K Oil Production, INC | Unnamed | 722 | 2024 | — |
| Page I 39 API 15-011-24898 | S & K Oil Production, INC | Unnamed | 696 | 2024 | — |
| Swisher Iu 14 API 15-011-24899 | S & K Oil Production, INC | Unnamed | 688 | 2024 | — |
| Swisher I 19 API 15-011-24900 | S & K Oil Production, INC | Unnamed | 702 | 2024 | — |
| Swisher I 20 API 15-011-24901 | S & K Oil Production, INC | Unnamed | 705 | 2024 | — |
| Asher 1-3 API 15-185-24160 | Edison Operating Company LLC | Unnamed | 3770 | 2024 | — |
| Sauder 19 API 15-031-24704 | Altavista Energy, INC | Unnamed | 1124 | 2024 | — |
| Sauder 18 API 15-031-24706 | Altavista Energy, INC | Unnamed | 1119 | 2024 | — |
| Sauder 20 API 15-031-24707 | Altavista Energy, INC | Unnamed | 1095 | 2024 | — |
| Sauder 21 API 15-031-24708 | Altavista Energy, INC | Unnamed | 1122 | 2024 | — |
| Sauder 22 API 15-031-24709 | Altavista Energy, INC | Unnamed | 1114 | 2024 | — |
| Sauder 25 API 15-031-24710 | Altavista Energy, INC | Unnamed | 1121 | 2024 | — |
| Sauder 23 API 15-031-24711 | Altavista Energy, INC | Unnamed | 1095 | 2024 | — |
Fields of a comparable size
- Unknown 75,314
- Wildcat 36,703
- Hugoton Gas Area 9,178
- Paola-rantoul 7,078
- Chase-silica 5,384
- Cherokee Basin Coal Area 4,938
- Trapp 4,155
- Hall-gurney 3,287
- Humboldt-chanute 3,280
- Panoma Gas Area 3,007
- Bemis-shutts 2,815
- Kraft-prusa 2,239
- Gorham 2,178
- Spivey-grabs-basil 2,172
- Peru-sedan 2,058
Neighbours by the number of wells, not a ranking: the list slides with the field, so every one of the 109 field pages is reachable from the others. All of them.