BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

3,840-acre Bakken spacing unit

T149N R91W sections 5, 6, 7, 8, 17, 18

Spacing unitHeart Butte-Bakken

Unit facts

Formation
Bakken
Acres
3,840
Type
Spacing unit
Land described
T149N R91W sections 5, 6, 7, 8, 17, 18
Pool
Heart Butte-Bakken
Zone
Zone LXII
County
Dunn County
Surveyed wells inside
22
Most wells operated by
XTO ENERGY INC
Unit id
dsu-a2b94fa4cf88de0e29d4
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.48 two-mile laterals per 1,280 acres
Density drilled so far
5.13 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

FBIR STEPHEN 31X-19DFBIR STEPHEN 31X-19HFBIR STEPHEN 21X-19FFBIR STEPHEN 31X-19FBIR STEPHEN 21X-19EFBIR STEPHEN 21X-19AFBIR STEPHEN 21X-19BFBIR STEPHEN 31X-19GFBIR BEAKS 24X-8EFBIR BEAKS 24X-8AFBIR BEAKS 24X-8BFBIR HUNTSMEDICINE 24X-8EMHA 5-06-01H-149-92MHA 7-06-01H-149-92FBIR HUNTSMEDICINE 24X-8BMHA 8-06-01H-149-92FBIR BLACKMEDICINE 24X-21EXHMHA 3-06-01H-149-92MHA 1-06-01H-149-92MHA 2-06-01H-149-92MHA 4-06-01H-149-92MHA 6-06-01H-149-921 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
FBIR STEPHEN 31X-19DXTO ENERGY INCActive (A)10,556 ft100%
FBIR STEPHEN 31X-19HXTO ENERGY INCActive (A)10,429 ft100%
FBIR STEPHEN 21X-19FXTO ENERGY INCActive (A)10,213 ft100%
FBIR STEPHEN 31X-19XTO ENERGY INCActive (A)10,211 ft100%
FBIR STEPHEN 21X-19EXTO ENERGY INCActive (A)10,186 ft100%
FBIR STEPHEN 21X-19AXTO ENERGY INCActive (A)10,161 ft100%
FBIR STEPHEN 21X-19BXTO ENERGY INCActive (A)10,150 ft100%
FBIR STEPHEN 31X-19GXTO ENERGY INCActive (A)10,090 ft100%
FBIR BEAKS 24X-8EXTO ENERGY INCActive (A)9,987 ft100%
FBIR BEAKS 24X-8AXTO ENERGY INCActive (A)9,936 ft100%
FBIR BEAKS 24X-8BXTO ENERGY INCActive (A)9,570 ft100%
FBIR HUNTSMEDICINE 24X-8EXTO ENERGY INCActive (A)5,330 ft51%
MHA 5-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)5,077 ft51%
MHA 7-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)5,044 ft51%
FBIR HUNTSMEDICINE 24X-8BXTO ENERGY INCActive (A)5,029 ft50%
MHA 8-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)4,990 ft50%
FBIR BLACKMEDICINE 24X-21EXHXTO ENERGY INCActive (A)4,968 ft45%
MHA 3-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)4,512 ft47%
MHA 1-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)4,271 ft48%
MHA 2-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)4,211 ft46%
MHA 4-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)3,943 ft44%
MHA 6-06-01H-149-92OASIS PETROLEUM NORTH AMERICA LLCActive (A)1,775 ft17%

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 35518Case 32661Designated the spacing unitOASIS PETROLEUM NORTH AMERICA LLC
  2. Order 35852Case 32923Established the spacing unitOASIS PETROLEUM NORTH AMERICA LLC

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

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