FORTUNE's annual ranking of America's leading businesswomen

35 of 50
35. Lynn Elsenhans
Lynn Elsenhans
Chairman, CEO, and president, Sunoco; Chairman, CEO, Sunoco Logistics Partners
2010 rank: 41
Age: 55
The only female head of Big Oil in the U.S., Elsenhans has made bold moves to overhaul the $37 billion refiner. Sheís sold the chemicals business and ditched three money-losing refineries. She is relying more on retail fuels and logistics, with high returns and stable cash flows.
Network with Sunoco
From the October 17, 2011 issue
How we pick the Power 50
The list is compiled by FORTUNE editors, who consider four criteria: the size and importance of the womanís business in the global economy, the health and direction of the business, the arc of the womanís career (resume and runway ahead), and societal and cultural influence.

Name 2010 total compensation
Safra A. Catz $42 million
Wellington J. Denahan-Norris $23.6 million
Carol Meyrowitz $19.2 million
Name Rank
Cynthia Carroll 1
Gail Kelly 2
Marjorie Scardino 3