Company:  PAA NATURAL GAS STORAGE L ... (PNG)
Form Type:  10-K
Filing Date:  2/29/2012 
CIK:  0001481506 
Address:  333 CLAY STREET, SUITE 1500 
City, State, Zip:  HOUSTON, Texas 77002 
Telephone:  713-646-4100 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$21.65  
Change: 
0.07 (0.32%)  
Trade Time: 
04:03 PM EST  
Market Cap: 
$1.31B
Description of Business
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  FORM 10-K
    PART I
      Item 1A. Risk Factors
      Item 1B. Unresolved Staff Comments
      Item 3. Legal Proceedings
      Item 4. Mine Safety Disclosures
    PART II
      Item 5. Market for Registrant's Common Units, Related ...
      Item 6. Selected Financial Data
      Item 7. Management's Discussion and Analysis of Financial ...
        Results of Operations
        Liquidity and Capital Resources
      Item 7A. Quantitative and Qualitative Disclosures About ...
      Item 8. Financial Statements and Supplementary Data
      Item 9. Changes In and Disagreements With Accountants on ...
      Item 9A. Controls and Procedures
    Certifications
    PART II
      Item 9B. Other Information
    PART III
      Item 10. Directors and Executive Officers of Our General ...
        NAME AND TITLE
      Item 11. Executive Compensation
        COMPENSATION TABLE
      Item 12. Security Ownership of Certain Beneficial Owners and ...
        BENEFICIAL OWNERS
      Item 13. Certain Relationships and Related Transactions, and ...
      Item 14. Principal Accountant Fees and Services
    PART IV
      Item 15. Exhibits and Financial Statement Schedules
    SIGNATURES
    Report of Independent Registered Public Accounting Firm
    BALANCE SHEET
    INCOME STATEMENT
    STOCKHOLDERS EQUITY
    CASH FLOW
    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
      BALANCE SHEET
      BALANCE SHEET
      Note 18-Subsequent Events
    EXHIBIT INDEX
  EXHIBIT 10.8
  EXHIBIT 10.9
  EXHIBIT 21.1
    SUBSIDIARIES
  EXHIBIT 23.1
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 31.1
    CERTIFICATIONS
  EXHIBIT 31.2
    CERTIFICATIONS
  EXHIBIT 32.1
    CERTIFICATION OF
  EXHIBIT 32.2
    CERTIFICATION OF