Thomas J. Usher, chairman and CEO of USX Corporation, has announced the appointment of three new executive positions in the United States Steel Corporation. Reporting to Usher, as chairman, president and CEO of United States Steel will be Roy G. Dorrance, vice chairman and chief operating officer; Dan D. Sandman, vice chairman and chief legal & administrative officer and John P. Surma, Jr., vice chairman and chief financial officer. All three have also been identified as directors of United States Steel Corporation, following the separation of USX’s steel and energy businesses.