<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.saudia arabia, ambayo ndio mzalishaji mkubwa wa mafuta duniani, imeathiriwa sana na kuanguka kwa bei ya mafuta.  <response>: saudia arabia, which is the biggest oil producer in the world, has been significantly impacted by the falling oil prices. 