<prompt> Translate the following text to SwahiliPetroleum had been found in northern Borneo, at Miri, and in Brunei, and the Anglo-Dutch Shell company used Singapore as its regional depot for its oil supplies and exports.  <response>: Mafuta ya petroli yalipatikana katika maeneo ya Borneo, Miri na Brunei, na kampuni ya Anglo-Dutch Shell ilitumia Singapore kama ghala lake la eneo hilo kwa ajili ya usambazaji na usafirishaji wa mafuta. 