BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T154N R91W sections 4, 5

Spacing unit11 wells allowed · order 35866Sanish-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T154N R91W sections 4, 5
Pool
Sanish-Bakken
Zone
Zone XXIII
County
Mountrail County
Surveyed wells inside
13
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-d07515be1f0adf720cd3
Wells allowed by the latest linked order
11
Wells assigned to this unit
7
Pending permits inside
0
Balance under the allowance
-2
First linked order
Oct 26, 2007
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.49 two-mile laterals per 1,280 acres
Density drilled so far
8.46 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

BURL TTT 13-3TFHED TTT FEDERAL 43-4HTTT RANCH 43-4HARNDT 14-5-3XHARNDT 13-5TFXJONES 34-4HELMA TTT FEDERAL 43-4HBILL TTT FEDERAL 42-4TFHGORDON TTT FEDERAL 41-4HJONES 12-8HUARNDT 14-5XHARNDT 14-5-2XHEVAN TTT 41-4HU1 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
BURL TTT 13-3TFHWHITING OIL AND GAS CORPORATIONActive (A)10,197 ft100%
ED TTT FEDERAL 43-4HWHITING OIL AND GAS CORPORATIONActive (A)9,717 ft100%
TTT RANCH 43-4HWHITING OIL AND GAS CORPORATIONActive (A)9,508 ft100%
ARNDT 14-5-3XHWHITING OIL AND GAS CORPORATIONAbandoned (AB)9,488 ft100%
ARNDT 13-5TFXWHITING OIL AND GAS CORPORATIONActive (A)9,173 ft94%
JONES 34-4HWHITING OIL AND GAS CORPORATIONActive (A)8,627 ft100%
ELMA TTT FEDERAL 43-4HWHITING OIL AND GAS CORPORATIONActive (A)8,289 ft100%
BILL TTT FEDERAL 42-4TFHWHITING OIL AND GAS CORPORATIONAbandoned (AB)7,364 ft100%
GORDON TTT FEDERAL 41-4HWHITING OIL AND GAS CORPORATIONActive (A)5,258 ft100%
JONES 12-8HUWHITING OIL AND GAS CORPORATIONActive (A)5,092 ft73%
ARNDT 14-5XHWHITING OIL AND GAS CORPORATIONActive (A)4,620 ft48%
ARNDT 14-5-2XHWHITING OIL AND GAS CORPORATIONActive (A)1,116 ft11%
EVAN TTT 41-4HUWHITING OIL AND GAS CORPORATIONActive (A)726 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 11399Case 9687Established the spacing unitWHITING OIL & GAS CORP.
  2. Order 11400Case 9688Designated the spacing unitWHITING OIL & GAS CORP
  3. Order 11694Case 9927Pooled all interests in the unitWHITING OIL & GAS CORP.,
  4. Order 13904Case 11743Designated the spacing unit, 4 wells allowedWHITING OIL & GAS CORP.
  5. Order 15653Case 13377Established the spacing unit, 6 wells allowedWHITING OIL & GAS CORP.
  6. Order 22284Case 19977Designated the spacing unit, 8 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  7. Order 22284Case 19977Listed the unit in a pool zone table, 6 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  8. Order 22761Case 20455Designated the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  9. Order 22761Case 20455Listed the unit in a pool zone table, 6 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  10. Order 23316Case 21010Designated the spacing unit, 8 wells allowedSLAWSON EXPLORATION CO., INC.
  11. Order 23316Case 21010Listed the unit in a pool zone table, 6 wells allowedSLAWSON EXPLORATION CO., INC.
  12. Order 22755Case 20449Established the spacing unit, 11 wells allowedWHITING OIL AND GAS CORP.
  13. Order 24251Case 21918Designated the spacing unit, 11 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  14. Order 31505Case 28954Designated the spacing unitWHITING OIL AND GAS CORP.

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

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