Angelina Teny was appointed adviser on petroleum matters to the South Sudan Energy and Mines Ministry, and was the leader of negotiations with the Khartoum government over ownership and management of oil assets. While attending an energy conference in Ghana in September 2011 she spoke on the state of the oil industry in South Sudan after two months of full independence. She said that management of oil resources was largely though not entirely being handled from the south, and South Sudan was in control of most of its oil fields.