oil-filtering
oil-finish
oil-fired
oil-firing
oil-flooded
oil-flow
oil-fog
oil-free
oilfree
oil-from-coal
  oil-gas
oil-gathering
oil-gun
oil-hardening
oilhole
oil-hydrogen
oil-immersed
oil-impregnated
oil-in
oiliness
oiling-gear

    oil-gas tar

     газовая смола, нефтегазовая смола

     смола нефтяного газа, смола масляного газа