Spacing units

10,573 drilling spacing units published by NDIC, 9,155 of them matched to the hearing orders that created or changed them, 7,442 with a stated well allowance. Each unit has a page with its footprint, wells and order history.

• McKenzie 2,193
• Williams 1,906
• Mountrail 1,745
• Unknown county 1,680
• Dunn 1,306
• Divide 797
• Burke 432
• Billings 283
• Stark 125
• Golden Valley 49
• McLean 47
• Ward 4
• Mercer 3
• Slope 2
• Renville 1

A unit's county is the county of most of its wells; units without surveyed wells are listed under "Unknown county".