BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

T154N R90W section 31

Spacing unit3 wells allowed · order 35934Parshall-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T154N R90W section 31
Pool
Parshall-Bakken
Zone
Zone V
County
Mountrail County
Surveyed wells inside
6
Most wells operated by
EOG Resources
Unit id
dsu-81b704d072be18ad234d
Wells allowed by the latest linked order
3
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-3
First linked order
Dec 19, 2008
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.76 two-mile laterals per 1,280 acres
Density drilled so far
4.9 per 1,280 acres

Room to drill: 0 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. 2 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

AUSTIN 81-3130HAUSTIN 22-31HAUSTIN 82-31HAUSTIN 107-31HAUSTIN 48-3130HAUSTIN 47-3130H1 mi

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

Wells inside the unit

WellOperatorStatusLateral inside
AUSTIN 81-3130HEOG RESOURCES, INC.Active (A)5,448 ft88%
AUSTIN 22-31HEOG RESOURCES, INC.Active (A)5,109 ft100%
AUSTIN 82-31HEOG RESOURCES, INC.Active (A)5,009 ft100%
AUSTIN 107-31HEOG RESOURCES, INC.Active (A)4,256 ft100%
AUSTIN 48-3130HEOG RESOURCES, INC.Plugged and abandoned (PA)3,266 ft64%
AUSTIN 47-3130HEOG RESOURCES, INC.Active (A)2,119 ft35%

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 12573Case 10630Pooled all interests in the unitEOG RESOURCES, INC.
  2. Order 14077Case 11890Listed the unit in a pool zone table, 3 wells allowedHUNT OIL CO.
  3. Order 14127Case 11939Established the spacing unit, 3 wells allowedEOG RESOURCES, 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

3 other units share a surveyed well with this one; overlapping units are not additive.