In the wake of the initial reports of the merger, another report came out tying BNSF to a possible takeover of another railroad, with the company supposedly partnering with Goldman Sachs to prepare for a deal. While Warren Buffett, the chairman of BNSF parent Berkshire Hathaway, shot down the Goldman speculation, that hasn't quelled chatter that CSX may be in the railroad's crosshairs as an acquisition target.