Company:  ECOPETROL S.A. (EC)
Form Type:  20-F
Filing Date:  7/15/2011 
CIK:  0001444406 
Address:  CARRERA 7 NO 37-69 
City, State, Zip:  BOGOTA,  00000 
Telephone:  (571) 234-5000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$42.80  
Change: 
-0.90 (-2.06%)  
Trade Time: 
04:00 PM EST  
Market Cap: 
$87.99B
Description of Business
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  FORM 20-F
    PART I
      ITEM 1. Identity of Directors, Senior Management and Advisors
      ITEM 2. Offer Statistics and Expected Timetable
      ITEM 3. Key Information
        BALANCE SHEET
        INCOME STATEMENT
      ITEM 4. Information on the Company
        BENEFICIAL OWNERS
      ITEM 4A. Unresolved Staff Comments
      ITEM 5. Operating and Financial Review and Prospects
        Liquidity and Capital Resources
      ITEM 6. Directors, Senior Management and Employees
      ITEM 7. Major Shareholders and Related Party Transactions
        BENEFICIAL OWNERS
      ITEM 8. Financial Information
        LEGAL PROCEEDINGS
      ITEM 9. The Offer and Listing
      ITEM 10. Additional Information
      ITEM 11. Quantitative and Qualitative Disclosures About ...
        INCOME STATEMENT
      ITEM 12. Description of Securities Other than Equity Securities
    PART II
      ITEM 13. Defaults, Dividend Arrearages and Delinquencies
      ITEM 14. Material Modifications to the Rights of Security ...
      ITEM 15. Controls and Procedures
      ITEM 16A. Audit Committee Financial Expert
      ITEM 16B. Code of Ethics
      ITEM 16C. Principal Accountant Fees and Services
      ITEM 16D. Exemptions from the Listing Standards for Audit ...
      ITEM 16E. Purchases of Equity Securities by the Issuer and ...
      ITEM 16F. Change in Registrant's Certifying Accountant
      ITEM 16G. Corporate Governance
    PART III
      ITEM 17. Financial Statements
      ITEM 18. Financial Statements
      ITEM 19. Exhibits
    BENEFICIAL OWNERS
    BENEFICIAL OWNERS
    BENEFICIAL OWNERS
    BENEFICIAL OWNERS
    BENEFICIAL OWNERS
    BENEFICIAL OWNERS
    Report of Independent Registered Public Accounting Firm
    BALANCE SHEET
    STOCKHOLDERS EQUITY
    CASH FLOW
    Notes to the Consolidated Financial Statements
    BENEFICIAL OWNERS
    BENEFICIAL OWNERS
    STOCKHOLDERS EQUITY
    SIGNATURES
  EXHIBIT 1.2
  EXHIBIT 8.1
  EXHIBIT 12.1
  EXHIBIT 12.2
  EXHIBIT 13.1
  EXHIBIT 16.1
  EXHIBIT 23.1
    Consent of Independent Registered Public Accounting Firm
  EXHIBIT 23.2
    CONSENT OF INDEPENDENT PETROLEUM ENGINEERS
  EXHIBIT 23.3
    Consent of Gaffney, Cline & Associates
  EXHIBIT 23.4
  EXHIBIT 99.1
  EXHIBIT 99.2
  EXHIBIT 99.3