BBakken SubsurfaceNorth Dakota well index

Spacing unit · McKenzie County

1,280-acre Bakken spacing unit

T151N R99W sections 30, 31

Spacing unit8 wells allowed · order 34449Tobacco Garden-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R99W sections 30, 31
Pool
Tobacco Garden-Bakken
Zone
Zone II
County
McKenzie County
Surveyed wells inside
5
Most wells operated by
Slawson
Unit id
dsu-9890ea618a86f45e0c58
Wells allowed by the latest linked order
8
Wells assigned to this unit
5
Pending permits inside
0
Balance under the allowance
+3
First linked order
Feb 11, 2011
Laterals that still fit (Nov 2026 method)
4 (3.82 two-mile equivalents)
Neighbourhood target density
9.08 two-mile laterals per 1,280 acres
Density drilled so far
4.81 per 1,280 acres

Room to drill: 4 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

Thor 2-31-30HThor 4-31-30HThor 5-31-30HThor 3-31-30HTHOR 1-31-30H1 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
Thor 2-31-30HSLAWSON EXPLORATION COMPANY, INC.Active (A)11,046 ft100%
Thor 4-31-30HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,145 ft100%
Thor 5-31-30HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,121 ft100%
Thor 3-31-30HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,061 ft100%
THOR 1-31-30HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,028 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 15940Case 13662Established the spacing unit, 1 well allowedENCORE OPERATING, L.P.
  2. Order 15940Case 13662Designated the spacing unitENCORE OPERATING, L.P.
  3. Order 15992Case 13714Pooled all interests in the unitENCORE OPERATING L.P.
  4. Order 18105Case 15850Established the spacing unit, 7 wells allowedDENBURY ONSHORE, LLC
  5. Order 23823Case 21481Designated the spacing unitXTO ENERGY INC.
  6. Order 29377Case 26935Established the spacing unit, 8 wells allowedSLAWSON EXPLORATION CO., INC.

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.

Overlapping units

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