Shell is a group of energy and petrochemicals companies.
Exxon Mobil Corporation explores and produces crude oil and natural gas.
Clean Harbors is a company providing environmental, energy, industrial, and hazardous waste disposal services.
Baker Hughes is an international industrial and oilfield service company.
Centrica is an integrated energy company.
Rio Tinto is a global mining and metals company.
Chevron is an integrated energy and technology company.
Oceaneering is a global oilfield provider of engineered services and products primarily to the offshore oil and gas industry, with a focus on deepwater applications.
Total is a multinational integrated oil and gas company.
Cabot Oil & Gas Corporation is an independent North American natural gas producer.
Hess is a global independent energy company primarily engaged in the exploration and production of crude oil and natural gas.
BP (British Petroleum) is an oil and petrochemical company.