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Top Operators in the Williston Basin (Bakken) by Well Count

The Williston Basin of North Dakota and Montana is the home of the Bakken and Three Forks plays — one of the premier light-oil resource basins in North America.

The Williston Basin (Bakken) has approximately 58,742 wells operated by 2,363 companies. Below are the largest operators by well count. Data as of 2026-08-03.

#OperatorWellsProducing
1 Continental Resources 4,341 3,561
2 Hess Bakken Investments Ii 2,903 2,517
3 Ridge Oil & Gas 2,769 2,758
4 Whiting Petroleum CORP 2,685 2,222
5 Devon Energy Williston,LLC 2,375 2,136
6 Oasis Petroleum North America 2,349 1,932
7 Burlington Resources Oil & Gas Company 1,658 1,170
8 Xto Energy 1,412 1,087
9 Eog Resources 1,366 833
10 Enerplus Resources 1,361 1,093
11 Marathon Oil Company 1,342 1,156
12 Petrohunt 1,326 1,049
13 Mmgl Mt I, LLC 970 785
14 Slawson Exploration Company 933 651
15 Amerada Hess 764 489
16 Kraken Operating 724 620
17 Cobra Oil & Gas 697 631
18 Denbury Onshore 696 596
19 Morning Star Oil Company 621 605
20 Formentera Operations LLC 545 418
21 White Rock Oil & Gas 526 495
22 Fidelity Exploration & Production Company 526 324
23 Neptune Operating LLC 523 487
24 Shell Oil Company 483 32
25 Hunt Oil Company 448 274

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Well counts compiled by Buckhead Energy from state oil & gas regulator records (data as of 2026-08-03); reflect wells where each company is the current operator of record in the Williston Basin (Bakken). Informational only.