BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T148N R96W sections 11, 14

Spacing unit12 wells allowed · order 35872Lost Bridge-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T148N R96W sections 11, 14
Pool
Lost Bridge-Bakken
Zone
Zone XIII
County
Dunn County
Surveyed wells inside
8
Most wells operated by
XTO Energy
Unit id
dsu-c884432f6ad3856d0e63
Wells allowed by the latest linked order
12
Wells assigned to this unit
8
Pending permits inside
0
Balance under the allowance
+4
First linked order
Dec 12, 2008
Laterals that still fit (Nov 2026 method)
3 (2.87 two-mile equivalents)
Neighbourhood target density
10.69 two-mile laterals per 1,280 acres
Density drilled so far
7.39 per 1,280 acres

Room to drill: 3 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

BULLBERRY FEDERAL 24X-2H2BULLBERRY FEDERAL 24X-2GBULLBERRY FEDERAL 24X-2DRBULLBERRY FEDERAL 24X-2CTUCKERMAN FEDERAL 11X-11FTUCKERMAN 11X-11BTUCKERMAN 11X-11TUCKERMAN FEDERAL 11X-11A1 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
BULLBERRY FEDERAL 24X-2H2XTO ENERGY INCActive (A)10,301 ft100%
BULLBERRY FEDERAL 24X-2GXTO ENERGY INCActive (A)10,248 ft100%
BULLBERRY FEDERAL 24X-2DRXTO ENERGY INCActive (A)10,237 ft100%
BULLBERRY FEDERAL 24X-2CXTO ENERGY INCActive (A)10,229 ft100%
TUCKERMAN FEDERAL 11X-11FXTO ENERGY INCActive (A)9,365 ft100%
TUCKERMAN 11X-11BXTO ENERGY INCActive (A)9,326 ft100%
TUCKERMAN 11X-11XTO ENERGY INCActive (A)9,281 ft100%
TUCKERMAN FEDERAL 11X-11AXTO ENERGY INCActive (A)8,713 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 12647Case 10484Established the spacing unit
  2. Order 13370Case 11274Designated the spacing unitXTO ENERGY INC.
  3. Order 15174Case 12907Designated the spacing unitXTO ENERGY INC.
  4. Order 15983Case 13705Established the spacing unit, 3 wells allowedXTO ENERGY INC.
  5. Order 17122Case 14846Pooled all interests in the unitXTO ENERGY INC.
  6. Order 18257Case 15994Designated the spacing unit, 8 wells allowedDENBURY ONSHORE, LLC
  7. Order 21013Case 18711Established the spacing unit, 8 wells allowedXTO ENERGY INC.
  8. Order 26927Case 24561Designated the spacing unit, 12 wells allowedXTO ENERGY INC.
  9. Order 27024Case 24660Established the spacing unit, 12 wells allowedXTO ENERGY INC.

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

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