Berkshire Hathaway Occident Oil: Check out the Occident Oil Making Companies. Occidental won about 1% after Berkshire Hathaway announced it was buying Oxichem, the petrochemical arm of the oil company, for nearly $10 billion in cash. Berkshire Hathaway’s Class B stock slipped about 0.2%. Fair Isaac – The shares revolved 19% after the company announced a system that would allow the company to access its FICO scores directly. Credit Bureau TransUnion and Equifax each drop out by 11%. Curved Real Estate – Real Estate Trusts rose more than 2% after approving a stock repurchase program of up to $250 million. Celanese – The materials company rose more than 2% after Citi upgraded its stock to buy from neutral. “Even with the slower macro background, we can see that there is a continuing self-help rever that supports revenue growth next year and helps to clean up the balance sheet,” the bank said. Lithium America – Lithium companies have lost approximately 4% in stock to sell from speculative buys, as profits from recently revised loans with the U.S. Department of Energy is limited. “We believe that the recent phase of the stock price is an overkill and does not accurately reflect the impact on the valuation of the revised deal with DOE,” Canaccord said in a memo. Western Digital – Stocks have grown almost 5%, adding 8.8% rallies from the previous session. Nikkei cited CEO Irving Tan, reporting that the data storage company will invest $1 billion in Japan over the next six months. Bloom Energy – Mizuho downgraded the energy company from buy to neutral, pushing inventory down by about 2%. The Wall Street company said Bloom is limited by internal production capacity and stocks are ready for pullback following a 254% rally in the third quarter. -CNBC’s Alex Hurling, Liz Napolitano and Yun Lee contributed the report.