BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T156N R93W sections 34, 35

Spacing unit2 wells allowed · order 35988Alger-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T156N R93W sections 34, 35
Pool
Alger-Bakken
Zone
Zone XXIV
County
Mountrail County
Surveyed wells inside
19
Most wells operated by
Devon Energy
Unit id
dsu-3ded032340e018f5733c
Wells allowed by the latest linked order
2
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-17
First linked order
Oct 24, 2014
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
8.64 two-mile laterals per 1,280 acres
Density drilled so far
6.57 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

VACHAL 3-34 #5TFHVACHAL 3-34 #8TFHESTHER HYNEK 3-2F XN 1HVACHAL 3-34 2TFHVACHAL 3-34F XW #1HVACHAL 3-34 #6HVACHAL 3-34 #7HVACHAL 3-34 1-HVACHAL 3-34 #3HVACHAL 3-34 #4TFHHYNEK 2 1HAVA 5693 43-35TSATSUMA 5693 44-35BMANDARIN 5693 43-35BOSAGE 5693 43-35TGINNY H 5693 41-35TPOSTEL 5693 44-35BHYNEK 5693 42-35HCLEMENTINE 5693 44-35T1 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
VACHAL 3-34 #5TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,991 ft100%
VACHAL 3-34 #8TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,873 ft100%
ESTHER HYNEK 3-2F XN 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,841 ft100%
VACHAL 3-34 2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,758 ft100%
VACHAL 3-34F XW #1HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,734 ft100%
VACHAL 3-34 #6HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,647 ft100%
VACHAL 3-34 #7HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,602 ft100%
VACHAL 3-34 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,475 ft100%
VACHAL 3-34 #3HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,467 ft100%
VACHAL 3-34 #4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,437 ft100%
HYNEK 2 1HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)5,115 ft100%
AVA 5693 43-35TOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,791 ft49%
SATSUMA 5693 44-35BOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,790 ft49%
MANDARIN 5693 43-35BOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,690 ft48%
OSAGE 5693 43-35TOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,673 ft48%
GINNY H 5693 41-35TOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,635 ft46%
POSTEL 5693 44-35BOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,617 ft48%
HYNEK 5693 42-35HOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,581 ft49%
CLEMENTINE 5693 44-35TOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,522 ft45%

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 24616Case 22283Established 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

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