BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

2,560-acre Bakken spacing unit

T155N R95W sections 35, 36

Spacing unit2 wells allowed · order 34736Alkali Creek-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T155N R95W sections 35, 36
Pool
Alkali Creek-Bakken
Zone
Zone XVII
County
Williams County
Surveyed wells inside
25
Most wells operated by
XTO Energy
Unit id
dsu-e7565127c8aa0e342da9
Wells allowed by the latest linked order
2
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-23
First linked order
Jul 21, 2015
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
10.09 two-mile laterals per 1,280 acres
Density drilled so far
7.55 per 1,280 acres

Room to drill: 1 lateral 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-36DARLEAN 41X-2HHOVE 11X-35MARMON HAHN TRUST 11X-11DARLEAN 41X-2DDARLEAN 41X-2CHALVERSON 13X-33CXDHALVERSON 13X-33DXADARLEAN 41X-2G2HALVERSON 13X-33EXFHALVERSON 13X-33BXCMYRNA FEDERAL 21X-2EXHHALVERSON 13X-33HHALVERSON 13X-33AMYRNA FEDERAL 21X-2AMYRNA 21X-2BHALVERSON 13X-33EXHMYRNA 21X-2MARMON 1-HD1 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%
DARLEAN 41X-2HXTO ENERGY INCActive (A)7,339 ft49%
HOVE 11X-35XTO ENERGY INCActive (A)5,433 ft100%
MARMON HAHN TRUST 11X-11XTO ENERGY INCActive (A)5,431 ft39%
DARLEAN 41X-2DXTO ENERGY INCActive (A)5,205 ft50%
DARLEAN 41X-2CXTO ENERGY INCActive (A)5,202 ft50%
HALVERSON 13X-33CXDXTO ENERGY INCActive (A)5,184 ft33%
HALVERSON 13X-33DXAXTO ENERGY INCActive (A)5,182 ft33%
DARLEAN 41X-2G2XTO ENERGY INCActive (A)5,098 ft50%
HALVERSON 13X-33EXFXTO ENERGY INCActive (A)5,002 ft31%
HALVERSON 13X-33BXCXTO ENERGY INCActive (A)4,999 ft33%
MYRNA FEDERAL 21X-2EXHXTO ENERGY INCActive (A)4,849 ft48%
HALVERSON 13X-33AXTO ENERGY INCActive (A)4,790 ft32%
HALVERSON 13X-33HXTO ENERGY INCActive (A)4,790 ft32%
MYRNA FEDERAL 21X-2AXTO ENERGY INCActive (A)4,769 ft48%
MYRNA 21X-2BXTO ENERGY INCActive (A)4,764 ft48%
HALVERSON 13X-33EXHXTO ENERGY INCActive (A)4,157 ft29%
MYRNA 21X-2XTO ENERGY INCActive (A)3,910 ft44%
MARMON 1-HDORYX ENERGY CO.Plugged and abandoned (PA)1,951 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 25128Case 22797Designated the spacing unit, 2 wells allowedHESS BAKKEN INVESTMENTS II, LLC
  2. Order 26082Case 23740Established the spacing unit, 2 wells allowedXTO ENERGY INC.
  3. Order 29165Case 26729Designated the spacing unitXTO ENERGY INC.
  4. Order 29315Case 26494Designated the spacing unitXTO
  5. Order 29657Case 27210Pooled all interests in the unitXTO 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

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