21,077 wells across 1,559 active operators, with 77 drilling permits filed in the last 24 months.
Refreshed monthly from KCC well-header records. Data current as of 2026-08-24.
Quick answer: The Sedgwick Basin formation in Kansas has 21,077 wells on record across 1,559 active operators, with 77 drilling permits filed in the last 24 months (as of 2026-08-24). Its most active operators by well count are R & B Oil & Gas, Sandridge Exploration & Production, Pickrell Drilling Company, Herman L Loeb and Val Energy. Compiled from Kansas Corporation Commission (KCC) well-header records, refreshed monthly.
The operators with the most well counts targeting the Sedgwick Basin formation in Kansas:
| # | Operator | Wells in Sedgwick Basin |
|---|---|---|
| 1 | R & B Oil & Gas | 451 |
| 2 | Sandridge Exploration & Production | 350 |
| 3 | Pickrell Drilling Company | 341 |
| 4 | Herman L Loeb | 335 |
| 5 | Val Energy | 317 |
| 6 | Bcemach Iii LLC | 299 |
| 7 | Chieftain Oil | 284 |
| 8 | Bear Petroleum | 278 |
| 9 | Atlas Operating | 276 |
| 10 | Trek Aec | 265 |
The Kansas counties with the most Sedgwick Basin activity:
Barber, Sumner, Mc Pherson, Kingman, Sedgwick
The most recent 53 drilling permits filed for Sedgwick Basin wells in Kansas:
| Permit Date | Well | API | County | Operator | Lateral (ft) |
|---|---|---|---|---|---|
| 2026-08-04 | Kgs-40 Replacement Martin 1 | 15155218280000 |
Reno | Oneok Exploration Company | — |
| 2026-07-27 | Meredith 1-26 | 15191228770000 |
Sumner | Blue Ridge Petroleum | — |
| 2026-07-27 | Kimberlee 1-29 | 15191228760000 |
Sumner | Blue Ridge Petroleum | — |
| 2026-07-22 | To-86 1 | 15155217340001 |
Reno | Oneok Exploration Company | — |
| 2026-07-10 | A J Koehn 8-26 | 15113214210000 |
Mc Pherson | Koehn Radell W Austin Koehn Morgan Koehn | — |
| 2026-07-10 | Yaggy #3 East 1 | 15155216990001 |
Reno | Oneok Exploration Company | — |
| 2026-07-07 | Bolinger 1 | 15095223660000 |
Kingman | Agv | — |
| 2026-07-02 | Patterson 1-7 | 15077221960000 |
Harper | Mcginness Energy Company INC | — |
| 2026-05-14 | Peggy 6-26 | 15095223650000 |
Kingman | Steffen Resource Development LLC | — |
| 2026-05-01 | Dome 1-16 | 15191228750100 |
Sumner | Union Valley Petroleum | — |
| 2026-04-15 | Carroll 1-6 | 15191228740000 |
Sumner | Blue Ridge Petroleum | — |
| 2026-04-15 | Dole 7 | 15155218270000 |
Reno | Howell Oil Company | — |
| 2026-04-09 | Ressler 1 | 15155218260000 |
Reno | Ressler Well Service | — |
| 2026-04-09 | Myers 14 | 15155218250000 |
Reno | Ressler Well Service | — |
| 2026-04-06 | Stonehocker 1-15 | 15191228730000 |
Sumner | Blue Ridge Petroleum | — |
| 2026-03-27 | Caster-Long 1-35 | 15191228720000 |
Sumner | Blue Ridge Petroleum | — |
| 2026-03-13 | Edson 6-7 | 15015242450000 |
Butler | Running Foxes Petroleum | — |
| 2026-02-27 | Alvin 9 | 15191228710000 |
Sumner | Union Valley Petroleum | — |
| 2026-01-14 | Ashton Farms 1-19 | 15191228700000 |
Sumner | Blue Ridge Petroleum | — |
| 2025-11-13 | Kuhlman 1-26 | 15095223640000 |
Kingman | Cobalt Energy | — |
| 2025-10-31 | Chs Refinery 1 | 15113214170000 |
Mc Pherson | Groundwater Management District | — |
| 2025-10-28 | N-05.8 New Zeller 1 | 15155218240000 |
Reno | Oneok Exploration Company | — |
| 2025-09-22 | Hackett 1-30 | 15191228690000 |
Sumner | Blue Ridge Petroleum | — |
| 2025-09-16 | Dickster'S Twister 1-31 | 15173210940100 |
Sedgwick | Bear Petroleum | — |
| 2025-07-22 | Ct-4 Replacement Rumler 1 | 15113214160000 |
Mc Pherson | Oneok Exploration Company | — |
| 2025-07-21 | Ct-2 Replacement Rumler 1 | 15113214150000 |
Mc Pherson | Oneok Exploration Company | — |
| 2025-06-26 | E-45.14 New Martin 1 | 15079207230000 |
Harvey | Oneok Exploration Company | — |
| 2025-06-26 | Hf-09 Replacement Rumler 1 | 15155218180000 |
Reno | Oneok Exploration Company | — |
| 2025-06-26 | Hf-02 Replacement Rumler 1 | 15155218220000 |
Reno | Oneok Exploration Company | — |
| 2025-06-26 | To-80 Replacement Rumler 1 | 15155218190000 |
Reno | Oneok Exploration Company | — |
| 2025-06-26 | Hf-4 Replacement Rumler 1 | 15155218170000 |
Reno | Oneok Exploration Company | — |
| 2025-06-26 | Hf-03 Replacement Rumler 1 | 15155218160000 |
Reno | Oneok Exploration Company | — |
| 2025-06-26 | To-78 Replacement Rumler 1 | 15155218210000 |
Reno | Oneok Exploration Company | — |
| 2025-06-26 | Hf-01 Replacement Rumler 1 | 15155218230000 |
Reno | Oneok Exploration Company | — |
| 2025-06-26 | To-79 Replacement Rumler 1 | 15155218200000 |
Reno | Oneok Exploration Company | — |
| 2025-06-25 | E-21.49 New Martin 1 | 15079207220000 |
Harvey | Oneok Exploration Company | — |
| 2025-06-12 | Medlam 1-11 | 15077221950000 |
Harper | Union Valley Petroleum | — |
| 2025-06-12 | Ruth Ann 1-6 | 15191228670000 |
Sumner | Union Valley Petroleum | — |
| 2025-06-11 | Joanne 1 | 15007245110000 |
Barber | Briscoe Petroleum | — |
| 2025-06-06 | Gb-82 Replacement Martin 1 | 15173210930000 |
Sedgwick | Mid Continent Market Center LLC | — |
| 2025-05-12 | Tyson 16-23 Swd | 15173203650003 |
Sedgwick | Bear Petroleum | — |
| 2025-05-06 | Dole 8 | 15155218140000 |
Reno | Howell Oil Company | — |
| 2025-04-23 | Eshelman Swd | 15155218130000 |
Reno | Excalibur Production Company | — |
| 2025-04-11 | Bryce 1 | 15007245100000 |
Barber | Hayes Oil Gas | — |
| 2025-04-07 | Packard 1-32 | 15007245090000 |
Barber | Packard Energy | — |
| 2025-04-01 | Pmb 1-17 | 15095223610000 |
Kingman | Grand Mesa Operating Company | — |
| 2025-02-28 | Cue 29 | 15113214140000 |
Mc Pherson | Midcontinent Production | — |
| 2025-01-29 | Struthers 1-1 | 15173210920000 |
Sedgwick | Grand Mesa Operating Company | — |
| 2024-12-16 | Sun City 1-35 | 15007245070000 |
Barber | Griffin Charles N | — |
| 2024-12-05 | Fitch 1 | 15191228650000 |
Sumner | Agv | — |
Wells targeting the Sedgwick Basin that have been spudded but are waiting on completion — near-term production upside:
| Spud Date | Days Waiting | Well | Operator | County | Lateral (ft) |
|---|---|---|---|---|---|
| 2026-07-27 | 27 | Bolinger 1 | Agv | Kingman | — |
| 2026-07-01 | 53 | Bott A 4 | Kantor Oil Company | Harvey | — |
| 2026-06-18 | 66 | Alameda Unit 5-3 | C & K Operating | Kingman | — |
| 2026-06-11 | 73 | Dole 7 | Howell Oil Company | Reno | — |
| 2026-06-01 | 83 | Ressler 1 | Ressler Well Service | Reno | — |
| 2026-05-18 | 97 | Myers 14 | Ressler Well Service | Reno | — |
The Sedgwick Basin is one of Kansas's active oil and gas plays, with 21,077 wells on file across 1,559 distinct operators of record. Operators have filed 77 drilling permits targeting the Sedgwick Basin in the last 24 months — a measure of how active the play is right now versus its historical baseline.
For mineral owners with interests in Barber, Sumner, Mc Pherson, Kingman, Sedgwick, knowing whether your tract sits within an active Sedgwick Basin footprint is a foundational valuation question. Active formations with consistent permit flow command premium pricing; legacy formations with steady but declining production are valued differently.
See all Kansas oil & gas formations & plays · Download the Kansas formations dataset (CSV)
21,077 wells target the Sedgwick Basin in Kansas, worked by 1,559 active operators, per KCC well-header records (as of 2026-08-24).
By well count, the most active Sedgwick Basin operators in Kansas are R & B Oil & Gas, Sandridge Exploration & Production, Pickrell Drilling Company, Herman L Loeb and Val Energy. The full ranking is in the table on this page.
Operators filed 77 drilling permits targeting the Sedgwick Basin in the last 24 months, and there are 6 drilled-but-uncompleted (DUC) wells awaiting completion — a live measure of current activity, per KCC records.
Operators filed 77 new drilling permits targeting the Sedgwick Basin in Kansas over the last 24 months, with 6 drilled-but-uncompleted (DUC) wells awaiting completion. New permits and spuds are the clearest signal of active Sedgwick Basin drilling, per KCC records (as of 2026-08-24).
Sedgwick Basin activity in Kansas currently spans 21,077 wells on record and 1,559 active operators, led by R & B Oil & Gas, Sandridge Exploration & Production, Pickrell Drilling Company, Herman L Loeb and Val Energy, with 77 drilling permits filed in the last 24 months — refreshed monthly from Kansas Corporation Commission (KCC) well-header records (as of 2026-08-24).
The most active Sedgwick Basin counties in Kansas are Barber, Sumner, Mc Pherson, Kingman, Sedgwick.
Value depends on your net mineral acres or royalty decimal, the operator, the remaining drilling locations, and current oil and gas prices. Buckhead Energy checks your tract against current Sedgwick Basin well and permit data and puts a free, no-obligation written offer in writing — this page is informational only, not a valuation.
Cite this dataset
Permanently archived and citable via a DOI on Zenodo (CERN), under a CC BY 4.0 license. DOI: 10.5281/zenodo.21442884 · View on Zenodo
License & attribution: This data is licensed CC BY 4.0. You are free to share and adapt it, including commercially, provided you credit “Buckhead Energy” and link back to this page or the DOI above.
Get a free written offer based on your specific tract, operator, and the current Sedgwick Basin activity in your area.
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Formation: Sedgwick Basin
State: Kansas
Total wells: 21,077
Active operators: 1,559
Permits 24mo: 77
Last refresh: 2026-08-24