Black Billionaires 2012

Forbes magazine has released it's annual ranking for 2012 of the worlds richest people. This year there are six black billionaires the same as last year. 

1. Saudi Arabia's Mohammed Al Amoudi (World’s Billionaires Rank #61 up from #63 last year), is now the richest black person in the world, with an estimated networth of $12.5 billion, up from last year by $200 million. 
2. Aliko Dangote (World’s Billionaires Rank #76 down from #51), net worth is estimated to be $11.2 billion down from $13.8 billion last year. Nigeria's first billionaire and richest person. In February, Dangote openned a new $1 billion Nigerian cement plant, which is expected to increase his company's production volume by 40% in that country. It's now the largest company on the Nigerian exchange. He also invested $4 billion to build a new cement facility in the Ivory Coast and is building a $115 million cement plant in Cameroon, plus owns plants in Zambia, Senegal, Tanzania and South Africa. 
3. Mike Adenuga (World's Billionaire Rank #248 up from #595 last year) is Nigeria’s second richest person with a net worth of $4.2 billion up from $2 billion last year. Adenuga runs Conoil Producing, the first Nigerian company to strike oil in commercial quantities in the early 1990s. Today it is Nigeria's largest oil exploration company. He also owns Globacom, Nigeria's second-largest mobile telecom operator. He's invested $1 billion on a submarine cable connecting Nigeria to the rest of the world. He made his first million at age 26 selling lace and distributing Coca-Cola, then won a contract to build military barracks in the late 1980s.
4. Patrice Motsepe (World’s Billionaires Rank #442 down from #336), who has the honour of being South Africa's first black billionaire has an estimated net worth of  $2.7 billion  (calculated March 2012), down from $3.3 billion last year. He built a $1.9 billion (sales) publicly traded mining conglomerate, African Rainbow Minerals (ARM), with interests in platinum, nickel, chrome, iron, manganese, coal, copper and gold. The share price of ARM has dropped 10% in the last year, shaving $500 million off Motsepe's net worth.
5. Oprah Winfrey's (World’s Billionaire Rank #442 down from #420) net worth is estimated to be $2.7 billion, unchanged from last year. Her Oprah Winfrey Network (OWN) a joint venture between Winfrey's company Harpo and Discovery Communications, completed its first full year, marked by ratings disappointments and turnover at the top. In mid-2011, Winfrey named herself CEO and chief creative officer, in addition to her previous role as chairman. Oprah's Angel Network has raised more than $70 million for international humanitarian causes.
6. Mo Ibrahim (World’s Billionaire Rank #692) net worth estimated at $1.1 billion down from $1.8 billion. He is a global expert in mobile communications with a distinguished academic and business career. Founder of Celtel International, sold 2005 to MTC Kuwait for $3.4 billion, making it one of Africa's most successful commercial ventures. Dr. Ibrahim personally pocketed $1.4 billion from the sale. The London resident now spends his time on philanthropy and investing in Africa. Created Mo Ibrahim Foundation to award monetary prize to former African heads of state who have shown exemplary leadership in such areas as promoting political freedom. The Foundation also publishes a 300-page index of conditions in 53 developing countries, covering 88 factors such as health, press freedom, and infrastructure.

SOURCE: Forbes.com