BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

640-acre Bakken spacing unit

T148N R95W sections 5, 6

Spacing unit4 wells allowed · order 35872Lost Bridge-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T148N R95W sections 5, 6
Pool
Lost Bridge-Bakken
Zone
Zone III
County
Dunn County
Surveyed wells inside
4
Most wells operated by
Burlington / Marathon
Unit id
dsu-e355476e1ad6a85833e5
Wells allowed by the latest linked order
4
Wells assigned to this unit
4
Pending permits inside
0
Balance under the allowance
0
First linked order
Oct 7, 2011
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
10.16 two-mile laterals per 1,280 acres
Density drilled so far
8.9 per 1,280 acres

Room to drill: 1 lateral 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

BEAR DEN 42-5TFHROSS 42-5HSTRUTHERS USA 41-5HRYAN 42-5TFH1 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
BEAR DEN 42-5TFHMARATHON OIL COMPANYActive (A)11,089 ft100%
ROSS 42-5HMARATHON OIL COMPANYActive (A)10,275 ft100%
STRUTHERS USA 41-5HMARATHON OIL COMPANYActive (A)10,261 ft100%
RYAN 42-5TFHMARATHON OIL COMPANYActive (A)10,217 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 17623Case 15377Established the spacing unit, 2 wells allowedMARATHON OIL CO.
  2. Order 21607Case 19304Pooled all interests in the unitMARATHON OIL CO.
  3. Order 26927Case 24561Designated the spacing unit, 4 wells allowedXTO ENERGY INC.
  4. Order 27062Case 24701Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  5. Order 31409Case 28863Designated the spacing unitMARATHON OIL CO.
  6. Order 34367Case 31635Designated the spacing unit, 3 wells allowedMARATHON OIL CO.
  7. Order 34367Case 31635Listed the unit in a pool zone table, 4 wells allowedMARATHON 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

One other unit shares a surveyed well with this one; overlapping units are not additive.