The oil company is steadily reducing its reliance on oil and gas. Occidental Petroleum (OXY -1.09%) is one of the country's largest oil and gas producers. It recently increased its exposure to the oil market by acquiring CrownRock in a $12 billion deal. That acquisition will add $1 billion to the company's annual free cash flow, assuming oil prices average around $70 a barrel. Unfortunately for Occidental, crude prices have recently slumped below that level. While lower oil prices will affect the company's ...