WorkVenture gives you an inside look at what it's like to work at C.S.O. PETROLEUM Co., Ltd., office & team photos, reviews and more. This is the C.S.O. PETROLEUM Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at C.S.O. PETROLEUM Co., Ltd..Apply to Starbucks CoffeeApply to Panalpina worldApply to 360 innovativeApply to ORO