The Nigerian National Petroleum Corporation threatened to cut off much of its oil supply to Ghana over unpaid debts totaling over $180 million USD. Western oil producers have warned Nigeria against making any major changes to the financial details of existing oil production contracts. President Buhari announced his intention to renegotiate the oil contracts that make up the majority of the government’s revenue. The United States military agreed to provide intelligence and surveillance support inside Nigeria to aid in the fight against Boko Haram. President Buhari’s crackdown on corruption made an important step abroad this month with the arrest of the former Nigerian Oil Minister in London. A spree of suicide bombings were carried out in the cities of Maiduguri, Abuja, and Damaturu. Further Boko Haram attacks were carried out in the outskirts of Maiduguri, a Shell oil flow station in the Southern Delta region, and a number of towns along the Nigerian-Cameroonian border. However, the Nigerian military announced a number of significant successful missions against Boko Haram, destroying 3 camps, killing 180 militants, and rescuing hundreds of captives. President Buhari announced 21 cabinet nominations and appointed himself as the new oil minister. A military court sentenced a Nigerian general to six months in prison for the defeat of his forces by Boko Haram militants in January. The International Monetary Fund strongly advised Nigeria to allow the devaluation of the Naira but this was quickly rejected by the Nigerian government. Nigerian regulators fined South Africa’s MTN mobile phone corporation $5.2 billion USD in a move that analysts claim could deter foreign investment in Nigeria. Shell began the construction of a new offshore oil platform on 5 October in the oil rich Bonga deepwater project.