BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T155N R94W sections 30, 31

Spacing unit8 wells allowed · order 34736Alkali Creek-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R94W sections 30, 31
Pool
Alkali Creek-Bakken
Zone
Zone IV
County
Mountrail County
Surveyed wells inside
8
Most wells operated by
XTO Energy
Unit id
dsu-40bf2b87980ce3525f34
Wells allowed by the latest linked order
8
Wells assigned to this unit
6
Pending permits inside
0
Balance under the allowance
0
First linked order
Jul 1, 2009
Laterals that still fit (Nov 2026 method)
3 (2.86 two-mile equivalents)
Neighbourhood target density
10.09 two-mile laterals per 1,280 acres
Density drilled so far
6.72 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

EMMA 31X-30AEMMA 31X-30EEMMA 31X-30BEMMA 31X-30DEMMA 31X-30CEMMA 31X-30TOM STATE 34X-1HXEALLIE 31X-24HXE1 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
EMMA 31X-30AXTO ENERGY INCActive (A)10,523 ft100%
EMMA 31X-30EXTO ENERGY INCActive (A)10,012 ft100%
EMMA 31X-30BXTO ENERGY INCActive (A)9,937 ft100%
EMMA 31X-30DXTO ENERGY INCActive (A)9,736 ft100%
EMMA 31X-30CXTO ENERGY INCActive (A)9,499 ft100%
EMMA 31X-30XTO ENERGY INCActive (A)9,385 ft100%
TOM STATE 34X-1HXEXTO ENERGY INCActive (A)5,186 ft49%
ALLIE 31X-24HXEXTO ENERGY INCActive (A)5,144 ft50%

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 13183Case 11122Established the spacing unitXTO ENERGY INC.
  2. Order 13267Case 11190Designated the spacing unitXTO ENERGY INC.
  3. Order 15061Case 12798Established the spacing unit, 3 wells allowedXTO ENERGY INC.
  4. Order 14461Case 12207Designated the spacing unit, 3 wells allowedCONTINENTAL RESOURCES, INC.
  5. Order 17787Case 15541Pooled all interests in the unitXTO ENERGY INC.
  6. Order 19672Case 17403Designated the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  7. Order 20613Case 18344Established the spacing unit, 8 wells allowedXTO ENERGY INC.
  8. Order 34736Case 31983Designated the spacing unitHESS BAKKEN INVESTMENTS II, 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.