From Breakingviews - Breakingviews - COMMENTARY: Dangote puts a rich price on refining scarcity ↧ ↧ Breakingviews - COMMENTARY: Dangote puts a rich price on refining s... Billionaire Aliko Dangote is seeking a ​roughly $50 bln valuation ​in Africa’s biggest IPO. His ⁠large Lagos refinery has ​real cost advantages, but investors ​must decide whether it deserves a premium to larger US ​refiners and how long ​today’s strong margins will last.