| Date Filed | Type | Description |
| 01/31/2014 |
SC 13G/A
| JANUS CAPITAL MANAGEMENT LLC reports a 4.1% stake in PAA Natural Gas Storage, L.P. |
| 01/02/2014 |
SC 13D/A
| PLAINS ALL AMERICAN PIPELINE LP reports a 100% stake in PAA Natural Gas Storage, L.P. |
| 12/31/2013 |
8-K
| Completion of Acquisition or Disposition of Assets, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Sta... |
| 12/03/2013 |
8-K
| Quarterly results |
| 11/27/2013 |
DEFM14A
| Form DEFM14A - Definitive proxy statement relating to merger or acquisition: |
| 11/06/2013 |
10-Q
| Quarterly Report for the period ended September 30, 2013 |
| 11/05/2013 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 11/04/2013 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 10/23/2013 |
SC 13D/A
| PLAINS ALL AMERICAN PIPELINE LP reports a 61.9% stake in PAA Natural Gas Storage, L.P. |
| 08/27/2013 |
SC 13D/A
| PLAINS ALL AMERICAN PIPELINE LP reports a 61.9% stake in PAA Natural Gas Storage, L.P. |
| 08/07/2013 |
10-Q
| Quarterly Report for the period ended June 30, 2013 |
| 08/05/2013 |
8-K
| Results of Operations and Financial Condition, Regulation FD Disclosure, Financial Statements and Exhibits |
| 05/28/2013 |
8-K
| Regulation FD Disclosure |
| 05/08/2013 |
10-Q
| Quarterly Report for the period ended March 31, 2013 |
| 05/06/2013 |
8-K
| Quarterly results |
| 02/27/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/14/2013 |
SC 13G/A
| JANUS CAPITAL MANAGEMENT LLC reports a 7.3% stake in PAA Natural Gas Storage, L.P. |
| 11/07/2012 |
10-Q
| Quarterly Report for the period ended September 30, 2012 |
| 11/05/2012 |
8-K
| Quarterly results |
| 08/21/2012 |
8-K
| Regulation FD Disclosure |
| 08/07/2012 |
10-Q
| Quarterly Report for the period ended June 30, 2012 |
| 08/06/2012 |
8-K
| Quarterly results |
| 07/03/2012 |
8-K
| Form 8-K - Current report |
| 06/07/2012 |
8-K
| Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance S... |
| 05/29/2012 |
8-K
| Form 8-K - Current report |
| 05/22/2012 |
8-K
| Regulation FD Disclosure |
| 05/08/2012 |
SC 13G/A
| KAYNE ANDERSON CAPITAL ADVISORS LP reports a 4.6% stake in PAA Natural Gas Storage, L.P. |
| 05/08/2012 |
10-Q
| Quarterly Report for the period ended March 31, 2012 |
| 05/07/2012 |
8-K
| Quarterly results |
| 03/06/2012 |
8-K
| Form 8-K - Current report |
| 02/28/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/14/2012 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/07/2012 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 11/14/2011 |
8-K
| Form 8-K - Current report |
|