About: bakken formation

Premodifier: bakken
Head noun: formation

Same concepts
http://dbpedia.org/resource/Bakken_Formation

Broader concepts

label	provenance	confidence
u.s shale field	isap:13805551	0.767705
oil	isap:487104845	0.407948
rock	isap:151338553	0.404296

Narrower concepts

label	provenance	confidence
north dakota	isap:420923831	0.363559