There's a new man at the top of Berkshire Hathaway's (BRK.A -0.30%) (BRK.B -0.26%) freight railroad subsidiary BNSF Railway. The company announced that it has appointed Carl Ice to the position, effective January 1. He will also keep his current post of president. He replaces current CEO and Chairman Matthew Rose, who will stay with the company as executive chairman.

Ice is a 34-year veteran of the firm, and is currently its president and COO. His appointment has been praised by Berkshire Hathaway CEO and guiding light Warren Buffett, who was quoted as saying that "the combination of Matt's and Carl's talents is the perfect arrangement for the future. I consider Berkshire very fortunate to have these men at BNSF's helm."

Ice's appointment is the second executive suite shift in as many months. In late October, the company announced that Executive Vice President and CFO Tom Hund is to retire in Q1 2014, to be replaced by fellow executive Julie Piggott.