BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T155N R102W section 33

Spacing unit1 wells allowed · order 32055Painted Woods-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R102W section 33
Pool
Painted Woods-Bakken
Zone
Zone IV
County
Williams County
Surveyed wells inside
7
Most wells operated by
Devon Energy
Unit id
dsu-5f3c0194e7182ef0a670
Wells allowed by the latest linked order
1
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
-6
First linked order
Oct 28, 2009
Laterals that still fit (Nov 2026 method)
2 (1.9 two-mile equivalents)
Neighbourhood target density
5.39 two-mile laterals per 1,280 acres
Density drilled so far
3.82 per 1,280 acres

Room to drill: 2 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

WING 4-33 #1HMARILYN 31-33 1HMARILYN 31-33 3HMARILYN 31-33 4HMARILYN 31-33 2HDAYTONA 6-5-4 1HDAYTONA 6-5-4 3H1 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
WING 4-33 #1HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)9,547 ft100%
MARILYN 31-33 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,140 ft33%
MARILYN 31-33 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,129 ft32%
MARILYN 31-33 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,122 ft35%
MARILYN 31-33 2HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,084 ft33%
DAYTONA 6-5-4 1HDEVON ENERGY WILLISTON, L.L.C.Confidential (tight hole) (CONFIDENTIAL)5,075 ft33%
DAYTONA 6-5-4 3HDEVON ENERGY WILLISTON, L.L.C.Drilling (DRL)5,071 ft33%

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 13735Case 11601Established the spacing unitBRIGHAM OIL & GAS, LP
  2. Order 14054Case 11871Designated the spacing unitBRIGHAM OIL & GAS, L.P.
  3. Order 18521Case 16255Pooled all interests in the unitBRIGHAM OIL & GAS, L.P.
  4. Order 17382Case 15134Designated the spacing unit, 8 wells allowedBRIGHAM OIL & GAS, L.P.
  5. Order 18297Case 16034Established the spacing unit, 8 wells allowedBRIGHAM OIL & GAS, L.P.
  6. Order 32055Case 29485Established the spacing unit, 1 well allowedGRAYSON MILL OPERATING, LLC
  7. Order 35950Case 33000Designated the spacing unitOASIS 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.