BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T155N R95W section 36

Spacing unit8 wells allowed · order 34736Alkali Creek-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R95W section 36
Pool
Alkali Creek-Bakken
Zone
Zone IV
County
Williams County
Surveyed wells inside
7
Most wells operated by
XTO Energy
Unit id
dsu-17bd9cf46e6f5e591ace
Wells allowed by the latest linked order
8
Wells assigned to this unit
7
Pending permits inside
0
Balance under the allowance
+1
First linked order
Jan 18, 2008
Laterals that still fit (Nov 2026 method)
4 (3.83 two-mile equivalents)
Neighbourhood target density
10.14 two-mile laterals per 1,280 acres
Density drilled so far
6.76 per 1,280 acres

Room to drill: 4 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

TOM STATE 34X-1EXHTOM STATE 34X-1CXDTOM STATE 34X-1E2TOM STATE 34X-1ATOM STATE 34X-1BMADISYN STATE 44X-1MOE STATE 31X-361 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
TOM STATE 34X-1EXHXTO ENERGY INCActive (A)10,880 ft100%
TOM STATE 34X-1CXDXTO ENERGY INCActive (A)10,362 ft100%
TOM STATE 34X-1E2XTO ENERGY INCActive (A)10,323 ft100%
TOM STATE 34X-1AXTO ENERGY INCActive (A)10,278 ft100%
TOM STATE 34X-1BXTO ENERGY INCActive (A)10,276 ft100%
MADISYN STATE 44X-1XTO ENERGY INCActive (A)10,260 ft100%
MOE STATE 31X-36XTO ENERGY INCInactive (IA)9,360 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 11553Case 9819Established the spacing unitHEADINGTON OIL, LP
  2. Order 11610Case 9861Pooled all interests in the unitHEADINGTON OIL CO. LLC
  3. Order 11648Case 9889Designated the spacing unit
  4. Order 13859Case 11704Established the spacing unit, 2 wells allowedXTO ENERGY INC.
  5. Order 14593Case 12341Established the spacing unit, 3 wells allowedXTO ENERGY INC.
  6. Order 14461Case 12207Designated the spacing unit, 3 wells allowedCONTINENTAL RESOURCES, INC.
  7. Order 17797Case 15551Pooled all interests in the unitXTO ENERGY INC.
  8. Order 19672Case 17403Designated the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  9. Order 20613Case 18344Established the spacing unit, 8 wells allowedXTO ENERGY INC.
  10. 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

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