and it's pushing higher. it looks like goldwyn continue to shine, pauline. >> it certainly looks like that. nina, the price of oil is another commodity that's been on the rise. oil drilling usually involves trying to get the crude up out of the ground. in singapore, they put it into the ground, way underground. we explain why. >> reporter: juran island, singapore's hub for the petro chemical industry. global companies have invested more than $30 billion to set up here and singapore wants the big business on this small island to grow. high security here on juran restricts cameras but this lone mountain of rock debris gives a hint of what's happening just off this island far under the sea, traveling deep into the earth below the sea bed, you can see tunnels and caves being carved to store oil and oil byproducts used by the companies in five enormous underground