BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T152N R93W sections 28, 33

Spacing unit1 wells allowed · order 20888Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T152N R93W sections 28, 33
Pool
Reunion Bay-Bakken
Zone
Zone III
County
Mountrail County
Surveyed wells inside
13
Most wells operated by
Burlington / Marathon
Unit id
dsu-ccfae765a65d24b9c943
Wells allowed by the latest linked order
1
Wells assigned to this unit
12
Pending permits inside
0
Balance under the allowance
-12
First linked order
Mar 27, 2009
Review note
later_order_likely_missing
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.84 two-mile laterals per 1,280 acres
Density drilled so far
11.67 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

DONKIN USA 14-33HLillian USA 24-33HTHELMA USA 14-33TFHLAVERNE USA 24-33HPFUNDHELLER USA 44-33HDawson USA 24-33TFHDuane USA 24-33TFHOlive USA 34-33TFHBetty Lou USA 14-33TFHGladheim USA 34-33HEARL PENNINGTON USA 44-33HALEXANDER USA 44-33TFHANNIE USA 11-29TFH1 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
DONKIN USA 14-33HMARATHON OIL COMPANYActive (A)10,098 ft100%
Lillian USA 24-33HMARATHON OIL COMPANYActive (A)10,083 ft100%
THELMA USA 14-33TFHMARATHON OIL COMPANYActive (A)10,016 ft100%
LAVERNE USA 24-33HMARATHON OIL COMPANYActive (A)10,001 ft100%
PFUNDHELLER USA 44-33HMARATHON OIL COMPANYActive (A)9,980 ft100%
Dawson USA 24-33TFHMARATHON OIL COMPANYActive (A)9,941 ft100%
Duane USA 24-33TFHMARATHON OIL COMPANYActive (A)9,878 ft100%
Olive USA 34-33TFHMARATHON OIL COMPANYActive (A)9,798 ft100%
Betty Lou USA 14-33TFHMARATHON OIL COMPANYActive (A)9,783 ft100%
Gladheim USA 34-33HMARATHON OIL COMPANYActive (A)9,707 ft100%
EARL PENNINGTON USA 44-33HMARATHON OIL COMPANYActive (A)9,595 ft100%
ALEXANDER USA 44-33TFHMARATHON OIL COMPANYActive (A)9,131 ft100%
ANNIE USA 11-29TFHMARATHON OIL COMPANYPlugged and abandoned (PA)5,140 ft52%

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 12896Case 10896Established the spacing unitMARATHON OIL CO.
  2. Order 13281Case 11201Designated the spacing unit
  3. Order 15256Case 12989Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  4. Order 17198Case 14948Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  5. Order 18909Case 16640Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  6. Order 20888Case 18586Established the spacing unit, 1 well allowedMARATHON OIL CO.
  7. Order 20888Case 18586Designated the spacing unit, 7 wells allowedMARATHON OIL CO.
  8. Order 25136Case 22805Pooled all interests in the unitMARATHON OIL CO.
  9. 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.