BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T151N R93W sections 15, 16, 21, 22

Spacing unitReunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T151N R93W sections 15, 16, 21, 22
Pool
Reunion Bay-Bakken
Zone
Zone XVI
County
Mountrail County
Surveyed wells inside
19
Most wells operated by
MARATHON OIL COMPANY
Unit id
dsu-c80fe085e39d0efb25aa
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.62 two-mile laterals per 1,280 acres
Density drilled so far
9.05 per 1,280 acres

Room to drill: 0 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

BEATRICE USA 31-15TFHESTHER USA 21-15HDORIS USA 21-15TFHMCROBERTS USA 14-21TFHELLA USA 11-16HASLAK USA 44-21TFHFRANCES USA 11-15HWALSH USA 11-16TFHDONAASON USA 34-21TFHNOKELBY USA 34-21HAKKO USA 44-21HSURA USA 44-21TFHSALVESON USA 24-21HGERHARDT USA 14-21HVERNE USA 24-21TFHSHIRLEY PENNINGTON USA 14-22HRUDOLPH USA 41-15TFHJERRY PENNINGTON USA 34-21HBOTTLESON 34-22H1 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%
MCROBERTS USA 14-21TFHMARATHON OIL COMPANYActive (A)10,243 ft100%
ELLA USA 11-16HMARATHON OIL COMPANYActive (A)10,233 ft100%
ASLAK USA 44-21TFHMARATHON OIL COMPANYActive (A)10,229 ft100%
FRANCES USA 11-15HMARATHON OIL COMPANYActive (A)10,218 ft100%
WALSH USA 11-16TFHMARATHON OIL COMPANYActive (A)10,203 ft100%
DONAASON USA 34-21TFHMARATHON OIL COMPANYActive (A)10,202 ft100%
NOKELBY USA 34-21HMARATHON OIL COMPANYActive (A)10,174 ft100%
AKKO USA 44-21HMARATHON OIL COMPANYActive (A)10,173 ft100%
SURA USA 44-21TFHMARATHON OIL COMPANYActive (A)10,169 ft100%
SALVESON USA 24-21HMARATHON OIL COMPANYActive (A)10,164 ft100%
GERHARDT USA 14-21HMARATHON OIL COMPANYActive (A)10,119 ft100%
VERNE USA 24-21TFHMARATHON OIL COMPANYActive (A)10,082 ft100%
SHIRLEY PENNINGTON USA 14-22HMARATHON OIL COMPANYActive (A)9,896 ft100%
RUDOLPH USA 41-15TFHMARATHON OIL COMPANYActive (A)9,580 ft100%
JERRY PENNINGTON USA 34-21HMARATHON OIL COMPANYActive (A)9,270 ft100%
BOTTLESON 34-22HMARATHON OIL COMPANYActive (A)9,074 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 29480Case 27034Established the spacing unitMARATHON OIL CO.
  2. Order 29499Case 27053Designated the spacing unitMARATHON OIL CO.
  3. Order 30563Case 28111Pooled all interests in the unitMARATHON OIL CO.
  4. 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

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