Chevron works to meet the world's growing demand for energy by exploring for oil and natural gas; refining and marketing gasoline; producing chemicals and geothermal power and more.

Petróleos Mexicanos es el organismo paraestatal encargado de la extracción y procesado de petróleo y gas.

Statoil's biggest activities are located in Norway. With our head office in Stavanger, corporate functions are split between that city and Oslo.

Third largest integrated energy company in the US and the fifth largest refiner in the world.

俄罗斯天然气工业股份公司 （LSE：OGZD）；俄语：ОАО Газпром，英语：Gazprom，简称“俄气”，有时音译为“盖茨普洛姆”，是俄罗斯最大的公司，也是全世界最大的天然气开采企业。“俄气”为中欧、东欧和独联体各国提供所需的几乎全部天然气。

People in the know trust the Texaco brand. For more than a century, the Texaco brand has combined experience with knowledge to attract customers who wish to be come - or already are - car enthusiast.

中国石油化工集团公司(英文缩写Sinopec Group)是1998年7月国家在原中国石油化工总公司基础上重组成立的特大型石油石化企业集团，是国家独资设立的国有公司、国家授权投资的机构和国家控股公司。中国石化集团公司注册资本 1306亿元，总经理为法定代表人，总部设在北京。

The World Energy Council is the foremost global and inclusive forum for impartial dialogue and thought leadership on our common energy future.

OPEC(Organization of the Petroleum Exporting Countries) is a permanent intergovernmental organization of 12 oil-exporting developing nations that coordinates and unifies the petroleum policies of its Member Countries.

中国海洋石油总公司（以下简称中国海油）是中国最大的国家石油公司之一，是中国最大的海上油气生产商，逐渐发展成为主业突出、产业链完整的综合型能源集团，拥有油气勘探、开发、生产及销售、天然气及发电、化工、炼化、化肥、油田服务、海油工程、综合服务等。