BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T155N R101W sections 4, 5

Spacing unit3 wells allowed · order 24401Missouri Ridge-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R101W sections 4, 5
Pool
Missouri Ridge-Bakken
Zone
Zone II
County
Williams County
Surveyed wells inside
12
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-8ed087fcaff8f2b531ff
Wells allowed by the latest linked order
3
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-9
First linked order
Jan 14, 2014
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.28 two-mile laterals per 1,280 acres
Density drilled so far
7.31 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

ANDRE SHEPHERD 5501 21-5 5TANDRE SHEPHERD 5501 21-5 3TANDRE SHEPHERD 5501 21-5 4TANDRE SHEPHERD 5501 14-7 1TSHEPHERD ANDRE 5501 14-5 4BJENSEN 5501 44-7 8BXANDRE 5601 42-33 2BANDRE 5501 14-5 3BANDRE 5501 13-4HSHEPHERD 5501 12-5 3BSHEPHERD 5501 12-5HSHEPHERD 5501 12-5 2B1 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
ANDRE SHEPHERD 5501 21-5 5TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,814 ft100%
ANDRE SHEPHERD 5501 21-5 3TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,788 ft100%
ANDRE SHEPHERD 5501 21-5 4TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,469 ft100%
ANDRE SHEPHERD 5501 14-7 1TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,453 ft93%
SHEPHERD ANDRE 5501 14-5 4BOASIS PETROLEUM NORTH AMERICA LLCActive (A)5,324 ft70%
JENSEN 5501 44-7 8BXOASIS PETROLEUM NORTH AMERICA LLCPlugged and abandoned (PA)5,165 ft50%
ANDRE 5601 42-33 2BOASIS PETROLEUM NORTH AMERICA LLCActive (A)5,130 ft50%
ANDRE 5501 14-5 3BOASIS PETROLEUM NORTH AMERICA LLCInactive (IA)5,053 ft50%
ANDRE 5501 13-4HOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,892 ft49%
SHEPHERD 5501 12-5 3BOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,662 ft48%
SHEPHERD 5501 12-5HOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,565 ft48%
SHEPHERD 5501 12-5 2BOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,412 ft47%

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 23168Case 20862Established the spacing unit, 3 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

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