Oprah ranks one of the most powerful business women in the world

The Wall Street Journal, recently announced the results of its second global "Top 50 Women To Watch" ranking, which is designed to recognize women who have achieved noteworthy successes in business in the past, as well as those who are poised to play important roles in business in the years to come.

The ranking includes women from the U.S., Europe and Asia, and is divided into seven diverse subgroups:

"Running the Show" -- Women who are chairwomen or chief executive officers.
"In Line to Lead" -- Women who stand to move up in their own companies or elsewhere in the years ahead.
"The Inheritors" -- Women who could be running the family business in the future.
"The Policy Makers" -- Women in government and central banks having a significant impact on business.
"The Owners" -- Women who run their own companies.
"The Advocates" -- Women who are working to improve career opportunities and everyday lives of women.
"On the Sidelines" -- Women who recently have stepped down from high-profile corporate positions and are expected to play a major role in business in the years ahead.

The only black woman on the list was Oprah Winfrey who is ranked in the top spot in "The Owners" category. Winfrey was also ranked in the #4 spot by FORTUNE's List of The 50 Most Powerful Women in Business.