BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T158N R94W sections 17, 18, 19, 20

Spacing unitTioga-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T158N R94W sections 17, 18, 19, 20
Pool
Tioga-Bakken
Zone
Zone XVII
County
Mountrail County
Surveyed wells inside
11
Most wells operated by
HESS BAKKEN INVESTMENTS II, LLC
Unit id
dsu-223f15b2f6edc7a99953
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
5.51 two-mile laterals per 1,280 acres
Density drilled so far
2.41 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. 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

TI-FOSSAA- 158-94-1819H-1TI-BOKN- 158-94-1720H-1TI-Fossaa- LE-158-94-1819H-1TI-Fossaa- 158-94-1819H-2Hoiby 158-94-5A-17-1HSLovdahl 158-94-32D-20-1HSTIOGA-MADISON UNIT O-143HRTMU O-141AHTMU L-140 AHTIOGA-MADISON UNIT N-136HRTIOGA-MADISON UNIT K-143HR1 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
TI-FOSSAA- 158-94-1819H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)10,324 ft100%
TI-BOKN- 158-94-1720H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)10,289 ft100%
TI-Fossaa- LE-158-94-1819H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)10,171 ft100%
TI-Fossaa- 158-94-1819H-2HESS BAKKEN INVESTMENTS II, LLCActive (A)9,272 ft100%
Hoiby 158-94-5A-17-1HSPETRO-HUNT, L.L.C.Active (A)5,246 ft33%
Lovdahl 158-94-32D-20-1HSPETRO-HUNT, L.L.C.Active (A)5,240 ft31%
TIOGA-MADISON UNIT O-143HRHESS BAKKEN INVESTMENTS II, LLCPlugged and abandoned (PA)3,691 ft100%
TMU O-141AHHESS BAKKEN INVESTMENTS II, LLCPlugged and abandoned (PA)3,085 ft100%
TMU L-140 AHHESS BAKKEN INVESTMENTS II, LLCPlugged and abandoned (PA)2,811 ft100%
TIOGA-MADISON UNIT N-136HRHESS BAKKEN INVESTMENTS II, LLCPlugged and abandoned (PA)2,652 ft82%
TIOGA-MADISON UNIT K-143HRHESS BAKKEN INVESTMENTS II, LLCPlugged and abandoned (PA)1,463 ft63%

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 31851Case 29282Designated the spacing unitHESS BAKKEN INVESTMENTS II, LLC
  2. Order 31852Case 29283Established the spacing unitHESS BAKKEN INVESTMENTS II, LLC
  3. Order 31863Case 29294Pooled all interests in the unitHESS BAKKEN INVESTMENTS II, LLC
  4. Order 34446Case 31710Designated the spacing unitHESS BAKKEN INVESTMENTS II, LLC

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

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