BBakken SubsurfaceNorth Dakota well index

Spacing unit · McKenzie County

640-acre Bakken spacing unit

T150N R99W section 21

Spacing unitSouth Tobacco Garden-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T150N R99W section 21
Pool
South Tobacco Garden-Bakken
Zone
Zone I
County
McKenzie County
Surveyed wells inside
10
Most wells operated by
DEVON ENERGY WILLISTON, L.L.C.
Unit id
dsu-699e3091e88469b6144b
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.38 two-mile laterals per 1,280 acres
Density drilled so far
8.55 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

ORVIS STATE 150-99-21-16-5HORVIS STATE 150-99-21-16-4HORVIS STATE 150-99-21-16-3HORVIS 150-99-21-16-7HORVIS 150-99-21-16-10HSkaar 15-22 XW 1HOBENOUR 150-99-21-16-1HORVIS STATE 150-99-21-16-2HSERGEANT MAJOR 1-21HORVIS 150-99-21-16-6HLW1 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
ORVIS STATE 150-99-21-16-5HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)5,733 ft53%
ORVIS STATE 150-99-21-16-4HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,265 ft50%
ORVIS STATE 150-99-21-16-3HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,059 ft50%
ORVIS 150-99-21-16-7HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,951 ft49%
ORVIS 150-99-21-16-10HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)4,881 ft49%
Skaar 15-22 XW 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,802 ft48%
OBENOUR 150-99-21-16-1HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,336 ft46%
ORVIS STATE 150-99-21-16-2HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,322 ft46%
SERGEANT MAJOR 1-21HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)4,213 ft100%
ORVIS 150-99-21-16-6HLWDEVON ENERGY WILLISTON, L.L.C.Active (A)1,242 ft12%

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 14149Case 11690Pooled all interests in the unitNEWFIELD PRODUCTION CO.
  2. Order 15931Case 13653Designated the spacing unitNEWFIELD PRODUCTION CO.
  3. Order 19631Case 17362Designated the spacing unitHESS CORP.

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

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