<p>Global oil prices have fallen sharply, leading to significant revenue shortfalls in many energy exporting nations, such as Nigeria. For Ngozi Okonjo-Iweala, the country's finance minister: "Obviously, it would be nice if both Opec and non-Opec members moved a little. But we should see this as the opportunity for Nigeria to truly diversify its sources of revenues."</p><br /><br />Visit our website:<br />http://www.france24.com<br /><br />Like us on Facebook:<br />https://www.facebook.com/FRANCE24.English<br /><br />Follow us on Twitter:<br />https://twitter.com/France24_en
