#oil_industry__oilindustry__refining_industry__oil_business  an industry that produces and delivers oil and oil products
  supertype:  industry  the people engaged in a particular kind of commercial enterprise; "each industry has its own trade publications"
  member:  oil_company__oilcompany  a company that sells oil
  member:  pipeline_company  a company that operates oil pipelines for the oil industry

No statement uses or specializes oil_industry; click here to add one.