BBakken SubsurfaceNorth Dakota well index

Spacing unit · McLean County

320-acre Bakken drilling unit

T150N R90W section 4

Drilling unit2 wells allowed · order 35256Deep Water Creek Bay-Bakken

Unit facts

Formation
Bakken
Acres
320
Type
Drilling unit
Land described
T150N R90W section 4
Pool
Deep Water Creek Bay-Bakken
Zone
Zone II
County
McLean County
Surveyed wells inside
1
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-3f769ec38f142bc07b69
Wells allowed by the latest linked order
2
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
+1
First linked order
Feb 15, 2011
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.5 two-mile laterals per 1,280 acres
Density drilled so far
1.82 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. 3 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

RUPPLE 1-4H-150-901 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
RUPPLE 1-4H-150-90OASIS PETROLEUM NORTH AMERICA LLCPlugged and abandoned (PA)4,727 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 15862Case 13586Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  2. Order 15867Case 13591Established the spacing unit, 2 wells allowed

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.