Oesterle, who has been CEO of the Indianapolis-based consumer review company since 1999, will serve in his position until a successor is named.
He will also remain on the board of directors at least through the remainder of his current term, the company said.
16:46 A look at how Trump’s moves on coal will affect the industry13
00:32 Elon Musk is setting up a company that will link brains and computers23
21:09 Paul Ryan: House Republicans will continue their push for health-care reform this year24
17:45 Rockets announce local charities that will receive team's donations13