BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

T157N R91W section 31

Spacing unitTerminated by order 35122 (May 12, 2026)Alger-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T157N R91W section 31
Pool
Alger-Bakken
Zone
Zone I
County
Mountrail County
Surveyed wells inside
3
Most wells operated by
EOG RESOURCES, INC.
Unit id
dsu-ae5ddc278a5f7405a323
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
6.75 two-mile laterals per 1,280 acres
Density drilled so far
2.53 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

ROSS 35-0331HROSS 2-03HJAMES HILL 1-31H1 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
ROSS 35-0331HEOG RESOURCES, INC.Active (A)8,950 ft100%
ROSS 2-03HEOG RESOURCES, INC.Active (A)3,676 ft64%
JAMES HILL 1-31HHESS BAKKEN INVESTMENTS II, LLCPlugged and abandoned (PA)1,739 ft22%

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 14975Case 12714Designated the spacing unitOASIS PETROLEUM NORTH AMERICA LLC
  2. Order 15116Case 12849Established the spacing unit, 1 well allowedEOG RESOURCES, INC.
  3. Order 16454Case 14179Pooled all interests in the unitEOG RESOURCES, INC.
  4. Order 35268Case 32488Designated the spacing unitHESS BAKKEN INVESTMENTS II, LLC
  5. 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.

Overlapping units

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