LONDON–Royal Dutch Shell PLC said Wednesday it had agreed to sell some of the oil blocks in Nigeria previously earmarked for disposal as the Anglo-Dutch oil group moves forward with its divestment program. Shell said last year it wanted to divest four oil licenses and a pipeline in Nigeria’s Niger Delta, where sabotage and oil theft has dogged oil companies working in the region. “We have signed sales and purchase agreements for some of the oil mining leases but not all that we are seeking to divest,” a Shell spokesman said, without providing any details. The sale process “hasn’t yet concluded,” the spokesman said. Shell remained committed to Nigeria where it plans to retains offshore production, he said. The divestment, if completed, would be part of $15 billion worth of assets Shell wants to sell by the end of 2015 as it seeks to focus on its more profitable […]