New Shareholders
| 2011 |
Inception Date |
| National Fuel Gas |
May |
01 |
| 2010 |
Inception Date |
| Talisman Energy |
July |
01 |
| NSTAR |
June |
01 |
| Santos Limited |
May |
31 |
| ATP Oil & Gas |
October |
31 |
| 2009 |
Inception Date |
| Energy Future Holdings |
August |
01 |
| Sempra Energy |
June |
26 |
| Mariner Energy |
June |
01 |
|
