BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T156N R93W sections 20, 21, 28, 29

Spacing unit2 wells allowed · order 35988Alger-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T156N R93W sections 20, 21, 28, 29
Pool
Alger-Bakken
Zone
Zone XXIV
County
Mountrail County
Surveyed wells inside
13
Most wells operated by
Devon Energy
Unit id
dsu-74bf0a05e5e851299b5f
Wells allowed by the latest linked order
2
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-11
First linked order
Oct 24, 2014
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.13 two-mile laterals per 1,280 acres
Density drilled so far
5.87 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

LIFFRIG 29-20 6TFHLIFFRIG 29-20 7HBlanchet Federal 5693 14-21 4BBlanchet Federal 5693 14-21 5BKAITLIN FEDERAL 5693 41-28BBlanchet Federal 5693 14-21 3BLIFFRIG 29-20 #3TFHLIFFRIG 29-20 5HBLANCHET FEDERAL 5693 41-28HLIFFRIG 29-20 #2HLIFFRIG 29-20 #4HLIFFRIG 29-20 #1TFHMELL 44-21H1 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
LIFFRIG 29-20 6TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,853 ft100%
LIFFRIG 29-20 7HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,135 ft100%
Blanchet Federal 5693 14-21 4BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,945 ft100%
Blanchet Federal 5693 14-21 5BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,939 ft100%
KAITLIN FEDERAL 5693 41-28BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,924 ft100%
Blanchet Federal 5693 14-21 3BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,916 ft100%
LIFFRIG 29-20 #3TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,743 ft100%
LIFFRIG 29-20 5HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,663 ft100%
BLANCHET FEDERAL 5693 41-28HOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,641 ft100%
LIFFRIG 29-20 #2HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,560 ft100%
LIFFRIG 29-20 #4HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,527 ft100%
LIFFRIG 29-20 #1TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,231 ft100%
MELL 44-21HOASIS PETROLEUM NORTH AMERICA LLCAbandoned (AB)5,502 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 23546Case 21242Designated the spacing unit, 2 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  2. Order 24400Case 22066Established the spacing unit, 2 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.