(Reuters) – Dominion Energy Inc said on Friday it expects to resume construction of the $7.0 billion-$7.5 billion Atlantic Coast natural gas pipeline from West Virginia to North Carolina in the third quarter and complete it by early 2021, despite legal and regulatory challenges.

“It’s been a very frustrating process, but we are winding our way through it … and we’re making progress,” Dominion Chief Executive Thomas Farrell said on Dominion’s first-quarter earnings call.

The company still needs to resolve two major legal cases before it can complete the project, which has been on hold since late last year.

Atlantic Coast is designed to carry 1.5 billion cubic feet per day of gas from the Marcellus and Utica shale in Pennsylvania, Ohio and West Virginia