BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

640-acre Bakken spacing unit

T149N R92W section 9

Spacing unit4 wells allowed · order 35852Heart Butte-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T149N R92W section 9
Pool
Heart Butte-Bakken
Zone
Zone VIII
County
Dunn County
Surveyed wells inside
3
Most wells operated by
Devon Energy
Unit id
dsu-ba3f563b1c398983e2b4
Wells allowed by the latest linked order
4
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
+1
First linked order
Jun 18, 2010
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.03 two-mile laterals per 1,280 acres
Density drilled so far
2.6 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. 7 more would fit the density but not the spacing rule. 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

TWO SHIELDS BUTTE 13-21-32-16H3UTWO SHIELDS BUTTE 13-21-17-1H3UHIGH HAWK 4-9H1 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
TWO SHIELDS BUTTE 13-21-32-16H3UDEVON ENERGY WILLISTON, L.L.C.Active (A)4,798 ft32%
TWO SHIELDS BUTTE 13-21-17-1H3UDEVON ENERGY WILLISTON, L.L.C.Active (A)4,752 ft31%
HIGH HAWK 4-9HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,022 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 14536Case 12284Established the spacing unit, 1 well allowedQUESTAR EXPLORATION AND PRODUCTION CO.
  2. Order 19127Case 16857Established the spacing unit, 4 wells allowedDAKOTA-3 E&P CO, LLC
  3. Order 27340Case 24949Pooled all interests in the unitWPX ENERGY WILLISTON, 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.