Driftwood will help meet soaring demand for LNG, says co-founder Souki.
US has threatened sanctions on companies involved in the project.
Project includes a processing plant and gathering system.
State Department report is expected to be issued later this week.
Revisions make it easier for projects to move forward but could be reversed by the incoming Biden administration.
Double E is one of several pipelines proposed to transport natural gas from the Permian Basin and is expected to enter service in 2021.
A spokeswoman at Equitrans Midstream, one of the companies building the natural gas pipeline, said the Mountain Valley team was aware of the revised state regulations and are sticking with their late-2021 target in-service date.
2.1 Bcf/d project began full commercial in-service on Jan. 1.
The completion of the second deepwater dock at South Texas Gateway at the mouth of the Corpus Christi Ship Channel enables Buckey to accommodate the berthing and loading of two vessels simultaneously.