Phillips 66 Partners LP made its biggest purchase ever in the third quarter, and kept the deal in the family.

The $2.4 billion dropdown from Phillips 66 Co. included a 25% interest in the Bakken Pipeline, which consists of the Dakota Access and Energy Transfer Crude Oil pipelines. It also included a 100% interest in the Merey Sweeny LP coke processing unit at the Phillips 66 Sweeny refinery in Old Ocean, Texas, near Houston.