BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

T157N R92W section 27

Spacing unitCottonwood-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T157N R92W section 27
Pool
Cottonwood-Bakken
Zone
Zone I
County
Mountrail County
Surveyed wells inside
1
Most wells operated by
EOG RESOURCES, INC.
DMR case / order on the footprint
11308 /
Unit id
dsu-2266478a3e75695285cf
Laterals that still fit (Nov 2026 method)
1 (0.48 two-mile equivalents)
Neighbourhood target density
6.6 two-mile laterals per 1,280 acres
Density drilled so far
0.86 per 1,280 acres

Room to drill: 1 lateral still fit at the density this unit's neighbourhood has reached (the larger of the 75th percentile of mature units within 10 miles and the median of units drilled in the last three years), placed in the widest gaps with the setbacks of the November 2026 method. 3 more would fit the density but not the spacing rule. Machine-made and geometric: not a commitment to drill, not a permit, order, lease or plan, and no economics. Land is counted once, so a unit under a larger unit shows only what the larger one left. How it is computed.

Map

COTTONWOOD 100-27H1 mi

DMR footprint (NAD83) with the published surface locations of its wells. Laterals run under the unit; pads often sit on a neighbouring section.

Open in the regional 3D viewerFootprint, wells and production playbackSee on the cases and orders mapHistorical spacing units by order

Wells inside the unit

WellOperatorStatusLateral inside
COTTONWOOD 100-27HEOG RESOURCES, INC.Active (A)4,496 ft100%

Surveyed Bakken-system laterals with at least 660 ft of plan-view length inside the published footprint. Geometric membership, not a legal assignment; a lateral can cross several units.

Order history

  1. Order 13412Case 11308Extended the spacing unitEOG RESOURCES, INC.
  2. Order 13631Case 11507Pooled all interests in the unitEOG RESOURCES, INC.
  3. Order 14132Case 11944Pooled all interests in the unitEOG RESOURCES, INC.
  4. Order 35122Case 32367Terminated the spacing unit

Facts extracted from signed NDIC orders whose land description covers this footprint; machine-extracted and not human-reviewed. A stated allowance is what that order allowed, not proof that it governs today.