Related by context. Frequent words. (Click for all words.) 65 Ethanol Production 64 Holds Promise 63 Hydraulic Fracturing 61 Prices Climb 61 Prices Slip 61 Saving Tips 60 Oil Extraction 60 Futures Climb 59 Prices Surge 59 Environmental Impacts 59 Reduces Risk 59 Futures Decline 59 Underpin 58 Severance Tax 58 Could Harm 58 Improve Efficiency 58 Different Types 58 Output Rises 58 Costs Rise 58 Cellulosic Ethanol 57 Slows Down 57 GHG Emissions 57 Prices Soar 57 Rise Slightly 57 Oil Prices Slip 57 Urgently Needed 57 Costs Update1 56 Stocks Waver 56 Biodiesel Production 56 Better Manage 56 Lawmakers Propose 56 Flame Retardants 56 Mild Weather 56 Immune Cells 56 Prices Jump 56 Is Little Changed 55 Economic Impacts 55 Japanese Stocks Climb 55 Falls Sharply 55 Futures Rise 55 OIL FUTURES Nymex 55 Proposed Changes 55 Oil Surges 55 Concerns Raised 55 Regulatory Requirements 55 Mechel Announces 55 Oil Prices Climb 55 Modestly Higher 55 Weaker Dollar 54 Hydrogen Storage 54 -* Newtek 54 Storage Tanks 54 High Growth Forecasted 54 Crisis Looms 54 Debate Rages 54 Causes Concern 54 Remains Unchanged 54 Oil Retreats 54 Could Threaten 54 Refined Products 54 Sniff Out 54 Commodity Outlook 54 Highlights Importance 54 Outweigh 54 Debate Heats Up 54 Dollar Weakness 54 Diversifies 54 Lawmaker Proposes 54 Cause Problems 53 Coking Coal 53 Radiation Exposure 53 Cognitive Decline 53 Groups Seek 53 Wide Ranging 53 Inch Higher 53 IrelandRESEARCH AND MARKETS 53 Tanker Truck 53 Profiting From 53 Experts Urge 53 Heating Costs 53 Extend Gains 53 Smallpox Vaccine 53 Warning Issued 53 Commodity Prices 53 Be Discussed 53 Tap Into 53 Tapping Into 53 Official Warns 53 Concerns Ease 53 Drying Up 53 Provides Operational Update 53 Cost Structure 52 Stocks Plummet 52 Expert Says 52 Carbon Sequestration 52 Ends Down 52 Oil Rigs 52 -Judge Kozinski 52 Diesel Fuel 52 Expert Warns 52 Inflation Worries