BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

2,560-acre Bakken spacing unit

T148N R92W sections 10, 11, 14, 15

Spacing unit1 wells allowed · order 24338Heart Butte-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T148N R92W sections 10, 11, 14, 15
Pool
Heart Butte-Bakken
Zone
Zone LI
County
Dunn County
Surveyed wells inside
12
Most wells operated by
XTO Energy
Unit id
dsu-013717930c62f305467e
Wells allowed by the latest linked order
1
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-11
First linked order
Jul 15, 2014
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.71 two-mile laterals per 1,280 acres
Density drilled so far
5.7 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 IRONWOMAN 31X-10DFBIR IRONWOMAN 21X-10AFBIR IRONWOMAN 21X-10BFBIR IRONWOMAN 21X-10EFBIR IRONWOMAN 21X-10AXDFBIR IRONWOMAN 21X-10FFBIR IRONWOMAN 31X-10GFBIR IRONWOMAN 31X-10CFBIR DARCIE 34X-14DFBIR IRONWOMAN 21X-10FBIR DARCIE 34X-14HFBIR DARCIE 34X-141 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 IRONWOMAN 31X-10DXTO ENERGY INCActive (A)10,204 ft100%
FBIR IRONWOMAN 21X-10AXTO ENERGY INCActive (A)10,193 ft100%
FBIR IRONWOMAN 21X-10BXTO ENERGY INCActive (A)10,155 ft100%
FBIR IRONWOMAN 21X-10EXTO ENERGY INCActive (A)10,146 ft100%
FBIR IRONWOMAN 21X-10AXDXTO ENERGY INCActive (A)10,132 ft100%
FBIR IRONWOMAN 21X-10FXTO ENERGY INCActive (A)10,127 ft100%
FBIR IRONWOMAN 31X-10GXTO ENERGY INCActive (A)10,127 ft100%
FBIR IRONWOMAN 31X-10CXTO ENERGY INCActive (A)10,048 ft100%
FBIR DARCIE 34X-14DXTO ENERGY INCActive (A)9,764 ft100%
FBIR IRONWOMAN 21X-10XTO ENERGY INCActive (A)9,730 ft100%
FBIR DARCIE 34X-14HXTO ENERGY INCActive (A)9,626 ft100%
FBIR DARCIE 34X-14XTO ENERGY INCActive (A)9,561 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 23891Case 21549Designated the spacing unitXTO ENERGY INC.
  2. Order 24338Case 22005Established the spacing unit, 1 well allowedXTO ENERGY INC.
  3. Order 28656Case 26240Pooled all interests in the unitXTO ENERGY INC.
  4. Order 35852Case 32923Designated 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

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