BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T156N R91W sections 21, 28

Spacing unit1 wells allowed · order 34366Ross-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T156N R91W sections 21, 28
Pool
Ross-Bakken
Zone
Zone VII
County
Mountrail County
Surveyed wells inside
1
Most wells operated by
Hess / Chevron
Unit id
dsu-9296684d94133b0a1ab7
Wells allowed by the latest linked order
1
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
0
First linked order
Aug 5, 2011
Laterals that still fit (Nov 2026 method)
6 (5.74 two-mile equivalents)
Neighbourhood target density
6.96 two-mile laterals per 1,280 acres
Density drilled so far
0.87 per 1,280 acres

Room to drill: 6 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

STANLEY 28-21-156-91H1 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
STANLEY 28-21-156-91HHESS BAKKEN INVESTMENTS II, LLCInactive (IA)9,224 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 16659Case 14381Established the spacing unit, 1 well allowedSAMSON RESOURCES CO.
  2. Order 16659Case 14381Designated the spacing unitSAMSON RESOURCES CO.
  3. Order 18291Case 16028Pooled all interests in the unitSAMSON RESOURCES CO.
  4. Order 21272Case 18971Established the spacing unit, 7 wells allowedSAMSON RESOURCES CO.
  5. Order 21144Case 18843Designated the spacing unit, 7 wells allowedEOG RESOURCES, INC.
  6. Order 34366Case 31634Established the spacing unit, 1 well allowedHESS BAKKEN INVESTMENTS II, LLC
  7. Order 35556Case 32699Designated the spacing unitEOG 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

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