The top 25 oil and gas operators in Custer County, Oklahoma, ranked by monthly oil production. Combined output: 860,654 BBL oil and 33,849,238 Mcf gas across 763 reporting wells/leases.
| Rank | Operator | Oil (BBL) | Gas (Mcf) | Wells |
|---|---|---|---|---|
| 1 | Mewbourne Oil Company | 415,621 | 2,864,798 | 29 |
| 2 | Nadel And Gussman | 142,401 | 1,798,795 | 6 |
| 3 | Devon Energy Production Company | 51,759 | 299,424 | 8 |
| 4 | Duncan Oil Properties | 42,410 | 282,934 | 39 |
| 5 | Arnold Oil Properties | 35,988 | 414,880 | 25 |
| 6 | Chesapeake Energy | 28,521 | 172,219 | 6 |
| 7 | Anthem Energy Operating Oklahoma LLC | 26,022 | 342,329 | 2 |
| 8 | Unit Petroleum Company | 21,706 | 625,485 | 54 |
| 9 | Blake Production Company | 16,261 | 117,573 | 6 |
| 10 | Notting Hill Energy LLC | 14,347 | 54,498 | 1 |
| 11 | Continental Resources | 10,953 | 12,721,245 | 61 |
| 12 | Toklan Oil & Gas | 9,512 | 462,138 | 25 |
| 13 | Diversified Production LLC | 8,502 | 1,434,855 | 202 |
| 14 | Sanguine Gas Exploration | 7,503 | 58,161 | 4 |
| 15 | Encino Operating | 5,848 | 82,216 | 20 |
| 16 | Bcemach Iii LLC | 4,521 | 5,009,125 | 78 |
| 17 | Crawley Petroleum | 4,009 | 928,051 | 11 |
| 18 | Teocalli Exploration LLC | 3,169 | 394,298 | 80 |
| 19 | Validus Energy Ii Midcon LLC | 2,547 | 5,196,074 | 21 |
| 20 | Presidio Petroleum | 2,231 | 259,488 | 63 |
| 21 | Bcemach | 1,912 | 2,516 | 4 |
| 22 | Latigo Petroleum | 1,475 | 258,645 | 7 |
| 23 | Chaco Energy Company | 1,367 | 3,711 | 8 |
| 24 | Citizen Energy Ventures LLC | 1,127 | 65,780 | 1 |
| 25 | Overflow Energy | 943 | 0 | 2 |