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Block 5A is an oil concession in South Sudan. After oil field development began during the Second Sudanese Civil War, Block 5A was the scene of extensive fighting as rival militias struggled for control. Out of an original population of 240,000, an estimated 12,000 were killed or died of starvation and 160,000 were displaced by force. Production started in 2006. There is evidence that the environmentally sensitive marshlands beside the Nile are becoming polluted. European companies have been accused of complicity in clearance of the population from the oil field. ==Location== The Block 5A concession covers the central part of Unity State on the west of the White Nile, extending west into Warrap State and East into Jonglei State to the east of the Nile. Block 5A is part of a huge, fertile floodplain fed by rivers from the Congo, Uganda, Kenya and Ethiopia. In the dry season the land becomes parched. Pastoralists move their herds from one area to another in search of grazing, usually staying close to a river or permanent wetland. In the wet season, the low lying lands are covered in flood water, and the herders move to higher ground. Block 5A is populated by Nuer people of the Bul, Leek, Jagei, Western Jikany and Dok sections. The town of Leer, in Dok Nuer territory, is in a key position in the block. On the east of the Nile the southern part of Zeraf island lies in Block 5a, populated mostly by Thiang Nuer. Geologically, Block 5A is located in the Muglad Basin, which extends from South Sudan north into Sudan and is rich in oil deposits. The Thar Jath field in Block 5A has an area of . Reserves at the Thar Jath field are said to be 250 million barrels. Mala field was expected to start production with 10,000 bpd in 2007 which would go up to 20,000 bpd by 2008. Mala was thought to have 44 million barrels of reserves. Oil has also been found in Jarayan field. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Block 5A, South Sudan」の詳細全文を読む スポンサード リンク
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