Berkshire-Backed BNSF Says Rail Megamerger Risks Price Rises

The leader of BNSF Railway Co. warned that the proposed deal to combine two of its rivals risks pushing up costs for customers, a sign of industry opposition to the largest tie-up in US railroad history.

Katie Farmer, BNSF’s chief executive officer, said Wednesday the industry should question whether it’s an “accurate premise” that Union Pacific Corp.’s proposed $72 billion takeover of Norfolk Southern Corp. will lead eventually to double-digit growth in shipping volume for the combined company.