BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T145N R96W sections 26, 35

Spacing unit6 wells allowed · order 35805Murphy Creek-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T145N R96W sections 26, 35
Pool
Murphy Creek-Bakken
Zone
Zone X
County
Dunn County
Surveyed wells inside
5
Most wells operated by
Burlington / Marathon
Unit id
dsu-86dcab3061efe0dd88f2
Wells allowed by the latest linked order
6
Wells assigned to this unit
4
Pending permits inside
0
Balance under the allowance
+1
First linked order
Sep 14, 2007
Laterals that still fit (Nov 2026 method)
6 (5.7 two-mile equivalents)
Neighbourhood target density
8.95 two-mile laterals per 1,280 acres
Density drilled so far
3.35 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

ALICE DARWIN 34-35HDARWIN 34-35HEDWARD DARWIN 14-35HDARWIN 14-35HERBE 41-22H1 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
ALICE DARWIN 34-35HMARATHON OIL COMPANYActive (A)9,367 ft100%
DARWIN 34-35HMARATHON OIL COMPANYActive (A)9,263 ft100%
EDWARD DARWIN 14-35HMARATHON OIL COMPANYActive (A)8,782 ft100%
DARWIN 14-35HMARATHON OIL COMPANYPlugged and abandoned (PA)5,047 ft100%
ERBE 41-22HMARATHON OIL COMPANYActive (A)2,852 ft18%

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 11317Case 9632Established the spacing unitMARATHON OIL CO.
  2. Order 11646Case 9887Designated the spacing unit
  3. Order 13317Case 11233Designated the spacing unit
  4. Order 14422Case 12170Designated the spacing unit, 2 wells allowedTRACKER RESOURCE DEVELOPMENT II, LLC
  5. Order 15133Case 12866Designated the spacing unit, 6 wells allowedENCORE OPERATING, L.P.
  6. Order 15646Case 13370Pooled all interests in the 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

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