BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,920-acre Bakken spacing unit

T149N R91W sections 20, 29, 32

Spacing unit6 wells allowed · order 35852Heart Butte-Bakken

Unit facts

Formation
Bakken
Acres
1,920
Type
Spacing unit
Land described
T149N R91W sections 20, 29, 32
Pool
Heart Butte-Bakken
Zone
Zone XLVII
County
Dunn County
Surveyed wells inside
4
Most wells operated by
XTO Energy
Unit id
dsu-ed8fbff4a4882f79cac4
Wells allowed by the latest linked order
6
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
+2
First linked order
Feb 24, 2026
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.63 two-mile laterals per 1,280 acres
Density drilled so far
1.54 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

FBIR HEADLESSTURTLE 44X-32CFBIR HUNTSMEDICINE 24X-8EFBIR HUNTSMEDICINE 24X-8BFBIR BLACKMEDICINE 24X-21EXH1 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
FBIR HEADLESSTURTLE 44X-32CXTO ENERGY INCActive (A)10,026 ft100%
FBIR HUNTSMEDICINE 24X-8EXTO ENERGY INCActive (A)5,117 ft49%
FBIR HUNTSMEDICINE 24X-8BXTO ENERGY INCActive (A)5,115 ft50%
FBIR BLACKMEDICINE 24X-21EXHXTO ENERGY INCActive (A)4,085 ft37%

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 34199Case 31478Designated the spacing unit, 6 wells allowedDEVON ENERGY WILLISTON, LLC
  2. Order 35254Case 32474Established the spacing unit, 6 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

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