Shell Oil Company, including its consolidated companies and its share in equity companies, is one of America's largest oil and natural gas producers, natural gas marketers, gasoline marketers and petrochemical manufacturers.
壳牌石油公司，包括它的联合公司和它控股的股份公司是美国最大的石油和天然气生产商、天然气销售商、汽油销售商和石油化工生产商。