Global oil majors Chevron Corp and Royal Dutch Shell Plc are putting small refineries on the auction block as they look to trim lower-margin assets in the face of headwinds from rising crude oil prices. Chevron, the second largest U.S. oil company, is soliciting interest in its Burnaby, British Columbia, refinery and gasoline stations, the company told Reuters. Shell is looking for buyers for its Martinez, California, refinery, two people familiar with the situation told Reuters. Shell declined to comment. These two companies, along with peers Exxon Mobil Corp and BP Plc, have sold more than a million barrels per day of U.S. refining capacity in the past three years, according to Stratas Advisors, a Houston-based consultancy. The world’s five largest oil majors together still have enough U.S. capacity to refine about 4.7 million […]