US energy giant ConocoPhillips has agreed to sell its Nigerian operations to growing African group Oando for 1.79 billion dollars (1.35 billion euros).
A suicide bomber rammed a bus into a church at a military barracks in restive northern Nigeria on Sunday and another detonated his explosives-packed car minutes later, killing 11 people and wounding dozens more.
Gunmen massacred at least 26 people in a student housing area of northeast Nigeria on Tuesday, calling victims out by name before shooting them or slitting their throats.
Nigerian Islamist group Boko Haram on Thursday claimed a set of fires at telecom masts across the north, while threatening journalists with the Voice of America radio network.
Nigeria's government has reached out to members of Islamist militant group Boko Haram through back-channel talks in a bid to end an insurgency that has killed hundreds, the president's spokesman said Sunday.
An oil industry watchdog said Monday that Shell paid Nigeria's military and police $65 million over two years to secure company facilities, alleging the firm had bankrolled forces widely accused of rights abuses.
Senior White House adviser David Plouffe, who managed President Barack Obama's 2008 presidential campaign, accepted a $100,000 speaking fee from an affiliate of a company doing business with Iran.
Rights group Amnesty International said Friday investigations into Shell oil spills in Nigeria were a "fiasco," alleging the company repeatedly blamed sabotage in an effort to avoid responsibility.
Nigeria on Monday signed a Memorandum of Understanding with an American energy firm to build six oil refineries, in a project worth 4.5 billion dollars.