Despite a dozen years of oil extraction in South Sudan's Unity state, the capital Bentiu has little to show for it." There's no benefit to Bentiu. We're still drinking water from the river," said David Biphal...A dusty town some 80 km (50 miles) from the contested Sudanese border, Bentiu has, like much of South Sudan, never seen any development. Instead, nine months after South Sudan separated from the rest of Sudan to form a new country, the area is now seeing air strikes from Sudanese planes..."The North is taking all the petrol through the pipeline. We're still poor and have no roads," said Biphal...For people in Bentiu, even before the latest flare-up, the prized resource has not provided the most basic of necessities...