BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

640-acre Bakken spacing unit

T146N R93W sections 4, 5, 8, 9

Spacing unit1 wells allowed · order 17932Bailey-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T146N R93W sections 4, 5, 8, 9
Pool
Bailey-Bakken
Zone
Zone I
County
Dunn County
Surveyed wells inside
5
Most wells operated by
Burlington / Marathon
Unit id
dsu-f195f90e80068c3648cf
Wells allowed by the latest linked order
1
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-4
First linked order
Nov 28, 2011
Review note
later_order_likely_missing
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.56 two-mile laterals per 1,280 acres
Density drilled so far
8.92 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

ALVIN 44-8HAURELIA 44-8TFHSYDNEY 14-9TFHMILTON GUENTHER 14-9HPAULSON 14-9H1 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
ALVIN 44-8HMARATHON OIL COMPANYActive (A)10,210 ft100%
AURELIA 44-8TFHMARATHON OIL COMPANYActive (A)9,970 ft98%
SYDNEY 14-9TFHMARATHON OIL COMPANYActive (A)9,889 ft100%
MILTON GUENTHER 14-9HMARATHON OIL COMPANYActive (A)9,485 ft100%
PAULSON 14-9HMARATHON OIL COMPANYActive (A)7,105 ft41%

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 17932Case 15677Established the spacing unit, 1 well allowedMARATHON OIL CO.
  2. Order 17932Case 15677Designated the spacing unitMARATHON OIL CO.
  3. Order 33775Case 31086Designated the spacing unitMARATHON OIL CO.

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.