BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T146N R94W sections 30, 31

Spacing unit8 wells allowed · order 32749Killdeer-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T146N R94W sections 30, 31
Pool
Killdeer-Bakken
Zone
Zone IV
County
Dunn County
Surveyed wells inside
10
Most wells operated by
Burlington / Marathon
Unit id
dsu-07bdb1861b46b3376b62
Wells allowed by the latest linked order
8
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
-2
First linked order
Feb 15, 2007
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
10.05 two-mile laterals per 1,280 acres
Density drilled so far
9.86 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

GUY CARLSON 24-31HHAYES 14-31HMASON 14-31TFHKNOX 24-31TFHJACK 44-31TFHHADLEY 34-31TFHKYE 44-31HGRANT CARLSON 24-31HGRANT CARLSON 14-31HTHORSTEIN 14-32H1 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
GUY CARLSON 24-31HMARATHON OIL COMPANYActive (A)11,865 ft100%
HAYES 14-31HMARATHON OIL COMPANYActive (A)11,059 ft100%
MASON 14-31TFHMARATHON OIL COMPANYActive (A)10,334 ft100%
KNOX 24-31TFHMARATHON OIL COMPANYActive (A)10,111 ft100%
JACK 44-31TFHMARATHON OIL COMPANYActive (A)10,090 ft100%
HADLEY 34-31TFHMARATHON OIL COMPANYActive (A)10,017 ft100%
KYE 44-31HMARATHON OIL COMPANYActive (A)9,992 ft100%
GRANT CARLSON 24-31HMARATHON OIL COMPANYActive (A)9,428 ft100%
GRANT CARLSON 14-31HMARATHON OIL COMPANYActive (A)9,107 ft100%
THORSTEIN 14-32HMARATHON OIL COMPANYActive (A)8,532 ft84%

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 10957Case 9334Designated the spacing unitPETROLEUM DEVELOPMENT CORP.
  2. Order 13856Case 11701Designated the spacing unitXTO ENERGY INC.
  3. Order 14362Case 12112Designated the spacing unit, 2 wells allowedMARATHON OIL CO. TO AMEND THE APPLICABLE ORDERS
  4. Order 15863Case 13587Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  5. Order 18849Case 15332Designated the spacing unit, 4 wells allowed
  6. Order 18404Case 16140Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. Order 20313Case 18044Designated the spacing unit, 7 wells allowedBURLINGTON RESOURCES OIL & GAS CO. LP
  8. Order 30793Case 28335Designated the spacing unit, 8 wells allowedMARATHON OIL CO.
  9. Order 30825Case 28367Established the spacing unit, 8 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

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