How about Ke Rui?

Ke Rui Petroleum Company is an international company with 49 branches all over the world. The business is very strong and the manufacturing strength is also very good. It is well-known abroad and relatively weak at home. The business chain is relatively long, involving petroleum equipment R&D and manufacturing, oilfield comprehensive engineering services, EPC general contracting and unconventional oil and gas fields. There are seven or eight thousand people now. Generally speaking, such a company is hard to find.