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O
  1.  Ocean Thermal Energy Conversion
  2. Octane (See Grades of Gasoline)
  3.  Offshore/Onshore Production (U.S. & State)
  4. Offshore Reserves (U.S. & State)
  5. Offshore Rotary Rigs
  6. Ohio Energy Profile
  7. Oil (Petroleum) (Main Petroleum Web Page)
  8. Oil Consumption
  9. Oil (Petroleum) Cost to Electric Power Industry (See Petroleum Cost to Electric Power Industry)
  10. Oil Consumption for Electricity Generation (See Consumption of Petroleum for Electricity Generation)
  11. Oil Exports
  12. Oil Fields (See Crude Oil)
  13. Oil-Fired Electric Capacity (See Capacity, Electric)
  14. Oil-Fired Electricity Generation (See Electricity - Petroleum Generation)
  15. Oil Heat (Price and Inventory; includes U.S., State & PADD)
  16. Oil Imports
  17. Oil Inventories/Stocks (U.S., PADD & International)
  18. Oil Market Basics (A primer on oil markets)
  19. Oil Market Chronology (See Chronologies of Energy Events)
  20.  Oil Prices
  21.  Oil Production
  22. Oil Refinery (See Refinery)
  23. Oil Reserves (See Proved Reserves)
  24.  Oil Stocks, Electric Power Sector (U.S., Census Division & State)
  25. Oil Well Production of Gas (U.S. & State)
  26. Oklahoma Energy Profile
  27. Oman Country Energy Profile
  28. On-Highway Diesel Prices, Retail
  29. Onshore Rotary Rigs
  30. OPEC (Organization of Petroleum Exporting Countries)
  31. Operating Expenses, Electric - (Investor-Owned Utilities)
  32. Oregon Energy Profile
  33. Outages, Electrical (See Blackouts)
  34.  Oxygenated Gasoline Prices  
  35.  Oxygenated Gasoline Sales
  36.  Oxygenates (U.S. & PADD)
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A-Z Topics helps you find what you are looking for. It is an alphabetical listing of select content on the EIA web site, including:

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Think of it like the index of a book.  It is structured so that synonyms, acronyms, and cross-referencing provide multiple ways for you to access information.

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The EIA Glossary includes definitions of technical terms.  Please use the glossary to find the meanings of words.

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The listing includes common and technical terms to meet the needs of the public as well as energy specialists.  A-Z Topics lists topics with relevance to a broad cross-section of our Web site’s audiences. The items are representative of popular topics or publications, frequent inquiries, or have critical importance to EIA’s mission. The index will continue to evolve as terms are added and refined.   

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References
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