South Dakota Investment Council’s holdings in Occidental Petroleum were worth $25,549,000 at the end of the most recent quarter. Portus Wealth Advisors LLC purchased a new position in Occidental Petroleum during the first quarter valued at approximately $29,000. Occidental Petroleum News SummaryHere are the key news stories impacting Occidental Petroleum this week:Occidental Petroleum Stock PerformanceOccidental Petroleum stock opened at $56.14 on Thursday. Occidental Petroleum Corporation has a fifty-two week low of $38.80 and a fifty-two week high of $67.45. Receive News & Ratings for Occidental Petroleum Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Occidental Petroleum and related companies with MarketBeat.com's FREE daily email newsletter.