Green Mountain Power

Charles B. Yulish was named v.p., corporate communications, for the U.S. Enrichment Corp. Yulish previously was executive v.p. and managing director of the E. Bruce Harrison Co. He began his career with the U.S. Atomic Energy Commission.

Dan Bart was promoted to the new position of v.p., standards and technology, to serve both the Electronic Industries Association and the Telecommunications Industry Association. Bart will retain his current responsibilities with TIA.

Allen Arvig, president of East Otter Tail Telephone Co.

Thomas L. Fisher, president of NICOR Inc., will become CEO at the company's annual meeting on May 3. He also is expected to become chairman in December, succeeding Richard G. Cline. Fisher, 50, joined NICOR's principal subsidiary, Northern Illinois Gas Co., in 1967, became president and CEO in 1988, and has served in a number of executive positions.

PECO Energy Co. president Corbin A. McNeill, Jr. will assume the additional position of CEO at the company's April 12 annual meeting. Joseph F.