52,600 wells across 1,937 recorded operators, with 0 drilling permits filed in the 24-month window at summary refresh.
Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
Quick answer: The Excello-Mulky formation in Kansas has 52,600 wells on record across 1,937 recorded operators, with 0 drilling permits filed in the 24-month window at source refresh. Its operators with the most wells on record are River Rock Operating, Redbud Oil & Gas11/Ofb, Colt Energy, Postrock Midcontinent Production and Kansas Energy Company. Source: Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
The operators with the most well counts targeting the Excello-Mulky formation in Kansas:
| # | Operator | Wells in Excello-Mulky |
|---|---|---|
| 1 | River Rock Operating | 2,374 |
| 2 | Redbud Oil & Gas11/Ofb | 2,094 |
| 3 | Colt Energy | 1,879 |
| 4 | Postrock Midcontinent Production | 949 |
| 5 | Kansas Energy Company | 846 |
| 6 | A & A Well Service | 841 |
| 7 | Running Foxes Petroleum | 797 |
| 8 | Dart Cherokee Basin Operating | 763 |
| 9 | Cherokee Wells | 734 |
| 10 | Jv Oil | 652 |
The Kansas counties with the most Excello-Mulky activity:
Montgomery, Allen, Neosho, Wilson, Chautauqua
The Excello-Mulky is not among the Kansas formations tracked separately in the yearly permit mix, so only statewide permit counts are shown.
| Year | State permits | This formation | Share | Median lateral |
|---|---|---|---|---|
| 2026 | 752 | — | — | — |
| 2025 | 751 | — | — | — |
| 2024 | 1,279 | — | — | — |
| 2023 | 1,372 | — | — | — |
| 2022 | 1,697 | — | — | — |
| 2021 | 1,328 | — | — | — |
| 2020 | 557 | — | — | — |
| 2019 | 1,206 | — | — | — |
Share of each year’s Kansas drilling permits by target formation, for the formations with the most permits.
| Year | Forest City Basin | Anadarko Basin | Central Kansas Uplift | Cherokee Basin | Sedgwick Basin | Las Animas Arch |
|---|---|---|---|---|---|---|
| 2026 | 22.7% | 19.4% | 15% | 27.3% | 4.4% | 5.5% |
| 2025 | 21.7% | 21.8% | 16.6% | 26% | 5.1% | 6% |
| 2024 | 29% | 13.8% | 16.3% | 26.6% | 4.2% | 5% |
| 2023 | 30.5% | 15.4% | 22.2% | 16.5% | 3.6% | 6.3% |
| 2022 | 28.5% | 21.1% | 19.6% | 13.5% | 6.4% | 4.4% |
| 2021 | 25.5% | 23.3% | 17.8% | 9.3% | 5.1% | 3% |
| 2020 | 15.8% | 20.8% | 23.5% | 5.7% | 8.3% | 3.2% |
| 2019 | 20.6% | 25.5% | 23% | 2% | 5.4% | 5% |
Buckhead Energy computes every figure on this page from grouped records in public oil and gas data. The page shows counts, sums, percentiles and indexes only; it does not list individual wells, leases or permits.
Counts under 3 wells and percentiles under 5 wells are withheld; totals are floors.
Share is the formation’s permits as a percent of the state’s permits that year. Median lateral length is published only when at least 5 permits stand behind it.
Last computed: 2026-11-01. These figures are informational only and are not a valuation of any mineral or royalty interest.
The Excello-Mulky is a formation/play group recorded in Kansas, with 52,600 wells on file across 1,937 distinct operators of record. Operators have filed 0 drilling permits targeting the Excello-Mulky in the 24-month window at summary refresh. These are stored records, not a live measure of drilling.
Recorded formation activity provides regional context. It does not establish ownership, future production, royalty payments or a value for an individual tract. Consult qualified professionals about your specific interest.
52,600 wells target the Excello-Mulky in Kansas, worked by 1,937 recorded operators, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
The Excello-Mulky operators with the most wells on record in Kansas are River Rock Operating, Redbud Oil & Gas11/Ofb, Colt Energy, Postrock Midcontinent Production and Kansas Energy Company. The full ranking is in the table on this page. Formation summary date: 2026-11-01.
Operators filed 0 drilling permits targeting the Excello-Mulky in the 24-month window at source refresh, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
Operators filed 0 new drilling permits targeting the Excello-Mulky in Kansas in the 24-month window at source refresh. New permits and spuds record reported activity stages; they do not establish ongoing drilling, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
Excello-Mulky activity in Kansas includes 52,600 wells on record and 1,937 recorded operators, with 0 drilling permits filed in the 24-month window at source refresh — from Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
The primary counties recorded for Excello-Mulky in Kansas are Montgomery, Allen, Neosho, Wilson, Chautauqua. Formation summary date: 2026-11-01.
Value depends on your net mineral acres or royalty decimal, the operator, the remaining drilling locations, and current oil and gas prices. This page is informational only, not a valuation. Formation summary date: 2026-11-01.
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Get Your Free Written OfferFormation: Excello-Mulky
State: Kansas
Total wells: 52,600
Recorded operators: 1,937
Permits 24mo: 0
Summary date: 2026-11-01
