<span class="" id="parent-fieldname-description"> Respected investor Warren Buffetâs business Berkshire Hathaway has posted record results for the quarter just ended, thanks in part to a healthy increase in revenues at a subsidiary railroad business. </span> <p>Berkshire reported a profit of US$6.4 billion on Monday, for the June quarter, up from US$4.5 billion in last year’s June quarter.</p><p>Key to this was a $1.5 billion lift in revenues, year-on-year, in the company’s railroad, utilities and energy division.</p><p>Railroad company Burlington Northern Santa Fe, one of the biggest of Berkshire’s 70 operating subsidiaries, lodged a second-quarter revenue of US$5.7 billion, up from US$5.3 billion a year ago.</p><p>The growth was credited to an increase in volumes of consumer goods and industrial goods handled by the business.</p><p>Net income for BNSF rose from US$884 million in the June quarter last year, to US$916 million in the June quarter this year.</p><p>The BNSF Railway is the product of nearly 400 different railroad lines that merged or were acquired over the course of 160 years. BNSF now operates in 28 states and two Canadian provinces, employing 43,000 people.</p><p>The company operates 52,300km of track, serving 40 ports and 30 intermodal facilities. It boasts 7000 locomotives across its network, which also features 13,200 signal locations, 13,000 bridges, 26,000 level crossings and 89 tunnels.</p>