BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T155N R101W sections 3, 10

Spacing unit12 wells allowed · order 34491Cow Creek-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R101W sections 3, 10
Pool
Cow Creek-Bakken
Zone
Zone III
County
Williams County
Surveyed wells inside
8
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-8ca93f6775a7dc9ac3d2
Wells allowed by the latest linked order
12
Wells assigned to this unit
8
Pending permits inside
0
Balance under the allowance
+4
First linked order
Mar 1, 2010
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.29 two-mile laterals per 1,280 acres
Density drilled so far
7.14 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

MONTAGUE 5601 41-34 6TMONTAGUE 5601 41-34 7BMONTAGUE 5501 13-3 #2TMONTAGUE 5601 42-34 #5BMONTAGUE 5501 13-3 #3BKATE EVELYN 5501 14-3TMONTAGUE 5501 13-3HMONTAGUE 5601 42-34 #4T1 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
MONTAGUE 5601 41-34 6TOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,209 ft100%
MONTAGUE 5601 41-34 7BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,172 ft100%
MONTAGUE 5501 13-3 #2TOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,137 ft100%
MONTAGUE 5601 42-34 #5BOASIS PETROLEUM NORTH AMERICA LLCPlugged and abandoned (PA)10,131 ft100%
MONTAGUE 5501 13-3 #3BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,971 ft100%
KATE EVELYN 5501 14-3TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,911 ft100%
MONTAGUE 5501 13-3HOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,552 ft100%
MONTAGUE 5601 42-34 #4TOASIS PETROLEUM NORTH AMERICA LLCActive (A)5,518 ft54%

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 14202Case 12003Established the spacing unit, 1 well allowedOASIS PETROLEUM NORTH AMERICA LLC
  2. Order 16282Case 14007Established the spacing unit, 1 well allowedBRIGHAM OIL & GAS, L.P.
  3. Order 16282Case 14007Designated the spacing unitBRIGHAM OIL & GAS, L.P.
  4. Order 18993Case 16724Pooled all interests in the unitOASIS PETROLEUM NORTH AMERICA LLC
  5. Order 20253Case 17984Designated the spacing unitBRIGHAM OIL & GAS, LP
  6. Order 21128Case 18827Established the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  7. Order 22307Case 20000Designated the spacing unit, 12 wells allowedLIBERTY RESOURCES LLC
  8. Order 23341Case 21037Established the spacing unit, 12 wells allowedOASIS PETROLEUM NORTH AMERICA 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

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