The combined personal and social connections of the various family members are very great, both in America and throughout the world. The family members know the most powerful politicians, royalty, public figures, and chief businessmen. Notable figures through Standard Oil alone have included Henry Flagler and Henry H. Rogers. Contemporary figures include Henry Kissinger, Nelson Mandela, Richard Parsons (Chairman and CEO of Time Warner), C. Fred Bergsten, Peter G. Peterson (Senior Chairman of the Blackstone Group), and Paul Volcker.