Houston-based Momentum Midstream has reached a $2.65 billion deal selling a natural gas gathering system and pipeline project in Louisiana. Momentum and Houston-based Indigo Natural Resources - the primary producer feeding into the system - are selling full ownership if the Haynesville Basin assets to Detroit-based DTE Energy Co. (NYSE: DTE). Both the gathering system and pipeline are fully contracted to customers, but the pipeline isn't operational yet. The latter asset will enter service...