The Denver-Julesburg (DJ) Basin of Colorado and Wyoming is anchored by the Niobrara and Codell formations across Weld County and the greater Front Range.
The Denver-Julesburg (DJ) Basin has approximately 100,223 wells operated by 2,846 companies. Below are the largest operators by well count. Data as of 2026-09-03.
| # | Operator | Wells | Have produced |
|---|---|---|---|
| 1 | Noble Energy | 10,379 | 8,303 |
| 2 | Kerr-McGee | 9,780 | 8,817 |
| 3 | PDC Energy | 8,350 | 6,737 |
| 4 | Own Resources Operating | 3,441 | 3,391 |
| 5 | Crestone Peak Resources Operating | 2,428 | 2,182 |
| 6 | Anadarko Petroleum | 2,136 | 94 |
| 7 | Extraction Oil & Gas | 1,636 | 1,303 |
| 8 | K P Kauffman Company | 1,458 | 1,316 |
| 9 | Bison Iv Operating LLC | 1,340 | 753 |
| 10 | Gungnir Operating LLC | 1,216 | 0 |
| 11 | EOG Resources | 1,207 | 214 |
| 12 | Bonanza Creek Energy Operating Company | 1,168 | 922 |
| 13 | Highpoint Operating | 977 | 516 |
| 14 | Currently Unassigned | 910 | 9 |
| 15 | Wave Petroleum Operating | 784 | 1 |
| 16 | Verdad Resources | 777 | 521 |
| 17 | Prairie Operating Co. LLC | 697 | 480 |
| 18 | North Silo Resources LLC | 679 | 38 |
| 19 | Longs Peak Resources | 634 | 9 |
| 20 | Fundare Resources Operating Company LLC | 623 | 400 |
| 21 | Dunamis Energy Operating LLC | 567 | 426 |
| 22 | British American Oil Production Company | 534 | 73 |
| 23 | Petroleum | 528 | 39 |
| 24 | Shell Oil Company | 491 | 34 |
| 25 | Omimex Petroleum | 489 | 354 |
The largest operators in the Denver-Julesburg (DJ) Basin by well count in this snapshot are Noble Energy (10,379 wells), Kerr-McGee (9,780 wells), PDC Energy (8,350 wells), Own Resources Operating (3,441 wells), Crestone Peak Resources Operating (2,428 wells). The snapshot includes 2,846 operators and is dated 2026-09-03.
No. “Have produced” counts wells with a recorded first-production date. It does not confirm current production or current royalty payments. The “Wells” column counts well records associated with each operator in this basin snapshot.
Use the linked operator profiles and basin mineral-rights guide for related information. The inquiry link below provides a way to contact Buckhead about your interest.
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Well counts compiled by Buckhead Energy from state oil & gas regulator records (data as of 2026-09-03); reflect wells where each company is the current operator of record in the Denver-Julesburg (DJ) Basin. Informational only.
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