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| 8/21/2025 | BKGNIGPF | KBRA rates Tortoise notes AAA, preferreds A+ |
| 12/24/2024 | BKIGPF | KBRA gives Tortoise notes AAA, preferreds A+ |
| 12/19/2024 | IGPF | KBRA rates Tortoise notes AAA, preferreds A+ |
| 2/12/2016 | IGLMPF | Tortoise Energy Infrastructure calls mandatory redeemable preferreds |
| 12/22/2015 | IGLMPF | Tortoise Energy Infrastructure calls mandatory redeemable preferreds |
| 4/2/2015 | IGPF | Fitch rates Tortoise Energy notes AAA |
| 12/22/2014 | IGPF | Fitch assigns AAA to Tortoise Energy notes |
| 10/10/2014 | IGPF | Fitch rates Tortoise Energy preferreds AA |
| 12/7/2012 | IGLMPF | Tortoise Energy Infrastructure calls mandatory redeemable preferreds |
| 12/3/2012 | IGPF | New Issue: Tortoise Energy sells $80 million 4.375% $10-par mandatory redeemable preferreds |
| 12/22/2009 | IG | Tortoise Energy calls $60 million series A auction-rate notes due 2044 |
| 12/4/2008 | IGPV | Tortoise buys back $40 million senior notes with cash and credit |