BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T155N R95W sections 24, 25

Spacing unit12 wells allowed · order 32884Capa-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R95W sections 24, 25
Pool
Capa-Bakken
Zone
Zone VIII
County
Williams County
Surveyed wells inside
8
Most wells operated by
XTO Energy
Unit id
dsu-fe01f80c225ef98ec62a
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
Jan 18, 2008
Laterals that still fit (Nov 2026 method)
3 (2.86 two-mile equivalents)
Neighbourhood target density
10.05 two-mile laterals per 1,280 acres
Density drilled so far
7.48 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

ALLIE 31X-24BALLIE 31X-24AALLIE 31X-24FALLIE 31X-24EXHALLIE 31X-24DALLIE 31X-24HALLIE 31X-24CALLIE 31X-241 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
ALLIE 31X-24BXTO ENERGY INCActive (A)10,291 ft100%
ALLIE 31X-24AXTO ENERGY INCActive (A)10,284 ft100%
ALLIE 31X-24FXTO ENERGY INCActive (A)10,089 ft100%
ALLIE 31X-24EXHXTO ENERGY INCActive (A)10,056 ft100%
ALLIE 31X-24DXTO ENERGY INCActive (A)9,797 ft100%
ALLIE 31X-24HXTO ENERGY INCActive (A)9,715 ft100%
ALLIE 31X-24CXTO ENERGY INCActive (A)9,383 ft100%
ALLIE 31X-24XTO ENERGY INCActive (A)9,367 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 11557Case 9823Established the spacing unitHEADINGTON OIL, LP
  2. Order 11612Case 9863Pooled all interests in the unitHEADINGTON OIL CO. LLC
  3. Order 13377Case 11281Designated the spacing unitXTO ENERGY INC.
  4. Order 14594Case 12342Designated the spacing unitXTO ENERGY INC.
  5. Order 14687Case 12431Designated the spacing unit, 3 wells allowedXTO ENERGY INC.
  6. Order 15173Case 12906Established the spacing unit, 3 wells allowedXTO ENERGY INC.
  7. Order 17786Case 15540Pooled all interests in the unitXTO ENERGY INC.
  8. Order 20614Case 18345Established the spacing unit, 8 wells allowedXTO ENERGY INC.
  9. Order 26286Case 23943Established 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

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