BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T151N R93W sections 14, 15, 22, 23

Spacing unit1 wells allowed · order 23051Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T151N R93W sections 14, 15, 22, 23
Pool
Reunion Bay-Bakken
Zone
Zone XVI
County
Mountrail County
Surveyed wells inside
18
Most wells operated by
Burlington / Marathon
Unit id
dsu-b9ab502cd06f752f4df0
Wells allowed by the latest linked order
1
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-17
First linked order
Sep 13, 2013
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.56 two-mile laterals per 1,280 acres
Density drilled so far
8.26 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

BEATRICE USA 31-15TFHESTHER USA 21-15HDORIS USA 21-15TFHFRANCES USA 11-15HWESTERDAHL 41-14HMIKKELSEN 11-14HSURA USA 44-21TFHSHIRLEY PENNINGTON USA 14-22HOSTLUND 11-14HRUTH MARTIN 21-14TFHMARLAND 41-14TFHRUDOLPH USA 41-15TFHOSTLUND 11-14TFHCORA 31-14TFHMARTIN 31-14HAH 34-23HBOTTLESON 34-22HJODI AUBOL 41-14H1 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
BEATRICE USA 31-15TFHMARATHON OIL COMPANYActive (A)10,406 ft100%
ESTHER USA 21-15HMARATHON OIL COMPANYActive (A)10,321 ft100%
DORIS USA 21-15TFHMARATHON OIL COMPANYActive (A)10,314 ft100%
FRANCES USA 11-15HMARATHON OIL COMPANYActive (A)10,218 ft100%
WESTERDAHL 41-14HMARATHON OIL COMPANYActive (A)10,217 ft100%
MIKKELSEN 11-14HMARATHON OIL COMPANYActive (A)10,043 ft100%
SURA USA 44-21TFHMARATHON OIL COMPANYActive (A)9,925 ft98%
SHIRLEY PENNINGTON USA 14-22HMARATHON OIL COMPANYActive (A)9,896 ft100%
OSTLUND 11-14HMARATHON OIL COMPANYActive (A)9,850 ft100%
RUTH MARTIN 21-14TFHMARATHON OIL COMPANYActive (A)9,767 ft100%
MARLAND 41-14TFHMARATHON OIL COMPANYActive (A)9,582 ft100%
RUDOLPH USA 41-15TFHMARATHON OIL COMPANYActive (A)9,580 ft100%
OSTLUND 11-14TFHMARATHON OIL COMPANYActive (A)9,524 ft100%
CORA 31-14TFHMARATHON OIL COMPANYActive (A)9,452 ft100%
MARTIN 31-14HMARATHON OIL COMPANYActive (A)9,451 ft100%
AH 34-23HMARATHON OIL COMPANYPlugged and abandoned (PA)9,293 ft100%
BOTTLESON 34-22HMARATHON OIL COMPANYActive (A)9,074 ft100%
JODI AUBOL 41-14HMARATHON OIL COMPANYActive (A)7,609 ft77%

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 22959Case 20654Designated the spacing unitWPX ENERGY WILLISTON, LLC
  2. Order 23051Case 20746Established the spacing unit, 1 well allowedMARATHON OIL CO.
  3. Order 31536Case 28985Designated the spacing unit

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

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