Pressure is rising as Greece's government once more postponed a crucial meeting to agree tough reforms, as Europe's leaders openly discuss Greece leaving the euro.
Oil production is set to start in Uganda after a deal is signed between the government and London-based Tullow oil, which also draws in Chinese and French firms.
South Sudan agrees a deal with Kenya to build an pipeline to Lamu, potentially reducing its dependence on its northern neighbour Sudan to export its oil.
Public transport and ports have ground to a halt in Greece as two of the country's largest public-sector unions strike in protest at continuing austerity.
