Related by context. Frequent words. (Click for all words.) 65 Oil 63 Gas 61 petroleum 61 Natural Gas 56 Energy 56 oil 55 Petrochemical 54 Refining 53 natural gas 53 gas 53 crude oil 51 Exploration 50 Minerals 50 ExxonMobil 50 Offshore Oil 50 Pipeline 50 Chevron 49 ConocoPhillips 49 oilfields 48 Oilfield 48 Mining 48 Shell 47 Refinery 47 Exxon Mobil 47 Electric Power 47 hydrocarbon 46 Coal 46 Fertilizer 46 Royal Dutch Shell 46 hydrocarbons 46 Oil Sands 46 Conoco 46 Petrochemicals 45 Petrol 45 Convenience Stores 45 Marathon Oil 45 BG Group 45 Conoco Phillips 45 LNG 45 oilfield 45 Gas Pipeline 45 ChevronTexaco 44 refineries 44 Pipelines 44 Shell Oil 44 Sinopec 44 CNPC 44 Geophysical 44 Fertiliser 43 Exxon 43 Mineral Resources 43 CNOOC 43 coalbed methane 43 Biofuels 43 shale gas 43 LPG 43 CNOOC Ltd. 42 refinery 42 Renewable Energy 42 gas condensate 42 PetroChina 42 Refineries 42 Pioneer Natural Resources 42 Offshore 42 Oils 42 Drilling 42 Cement 42 pipelines 42 Telecommunications 42 Pharmaceutical 41 Aviation 41 Lukoil 41 Tullow Oil 41 Chemical 41 Unocal 41 crude 41 Range Resources 41 Petro Canada 41 InterOil 41 onshore 41 Statoil 41 Anadarko Petroleum 41 Addax Petroleum 41 Esso 41 NNPC 41 Electricity 41 Mineral 41 Petro 41 Eni 40 BP 40 Cnooc 40 Saudi Aramco 40 Wind Energy 40 Occidental Petroleum 40 Repsol YPF 40 Amoco 40 deepwater 40 Beverage 40 KNOC 40 refiner 40 barrels