About: tight gas

Premodifier: tight
Head noun: gas

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

Broader concepts

label	provenance	confidence
unconventional natural gas	isap:281611520	0.817018
unconventional resource	isap:330874942	0.674166
unconventional gas	isap:281611056	0.356726

Narrower concepts

label	provenance	confidence
shale gas	isap:281611338	0.506942