After losing more than $1 billion in two funds managed by Tortoise Capital (now TortoiseEcofin), shareholders are suing, claiming the funds were allowed to become substantially over leveraged. They also claim the excess leverage resulted in $80 million in additional management fees.
Columbia Gas unveils renewable natural gas fleet vehicle
The system, known as NeuFuel, differs from compressed natural gas because it can be used at a lower pressure than CNG.