BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

Footprint 219008c4

Spacing unit

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
County
Mountrail County
Surveyed wells inside
4
Most wells operated by
SLAWSON EXPLORATION COMPANY, INC.
Unit id
dsu-219008c418c99fe2e38e
Laterals that still fit (Nov 2026 method)
2 (1.9 two-mile equivalents)
Neighbourhood target density
10 two-mile laterals per 1,280 acres
Density drilled so far
7.25 per 1,280 acres

Room to drill: 2 laterals 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. 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

WALLEYE (FEDERAL) 1-12-11HWALLEYE (FEDERAL) 3-12-11TFHWALLEYE (FEDERAL) 4-12-11TF2HWALLEYE FEDERAL 12-12-11TF3H1 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 playback

Wells inside the unit

WellOperatorStatusLateral inside
WALLEYE (FEDERAL) 1-12-11HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,339 ft100%
WALLEYE (FEDERAL) 3-12-11TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,324 ft100%
WALLEYE (FEDERAL) 4-12-11TF2HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,900 ft100%
WALLEYE FEDERAL 12-12-11TF3HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,305 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

No order in the research snapshot has been matched to this footprint yet.

Overlapping units

One other unit shares a surveyed well with this one; overlapping units are not additive.