BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T151N R93W sections 17, 20

Spacing unit16 wells allowed · order 31536Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R93W sections 17, 20
Pool
Reunion Bay-Bakken
Zone
Zone XII
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Burlington / Marathon
Unit id
dsu-a7b1e569d5ec4b60f709
Wells allowed by the latest linked order
16
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
+6
First linked order
May 25, 2007
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.81 two-mile laterals per 1,280 acres
Density drilled so far
8.68 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

BECKY USA 21-17TFHNESS USA 31-17HSUNWALL USA 41-17HBALLMEYER USA 41-17TFHHANS USA 31-17TFHRANDI USA 41-17HNUGGET USA 14-20TFHMARTHA GRUBE USA 14-20HSHOBE 24-20HSIBYL USA 44-19TFH1 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
BECKY USA 21-17TFHMARATHON OIL COMPANYActive (A)10,390 ft100%
NESS USA 31-17HMARATHON OIL COMPANYActive (A)10,222 ft100%
SUNWALL USA 41-17HMARATHON OIL COMPANYActive (A)10,193 ft100%
BALLMEYER USA 41-17TFHMARATHON OIL COMPANYActive (A)10,149 ft100%
HANS USA 31-17TFHMARATHON OIL COMPANYActive (A)10,117 ft100%
RANDI USA 41-17HMARATHON OIL COMPANYActive (A)10,065 ft100%
NUGGET USA 14-20TFHMARATHON OIL COMPANYActive (A)9,964 ft100%
MARTHA GRUBE USA 14-20HMARATHON OIL COMPANYActive (A)9,853 ft100%
SHOBE 24-20HMARATHON OIL COMPANYActive (A)9,367 ft100%
SIBYL USA 44-19TFHMARATHON OIL COMPANYActive (A)700 ft7%

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 11098Case 9453Established the spacing unitMARATHON OIL CO.
  2. Order 12482Case 10551Designated the spacing unit
  3. Order 14945Case 12684Designated the spacing unitMARATHON OIL CO.
  4. Order 15256Case 12989Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  5. Order 17198Case 14948Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  6. Order 18909Case 16640Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. Order 25101Case 22770Designated the spacing unit, 16 wells allowedMARATHON OIL CO.
  8. Order 25321Case 22988Established the spacing unit, 16 wells allowedMARATHON OIL CO.

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

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