Mealey's (January 4, 2022, 11:57 AM EST) -- WASHINGTON, D.C. — A hydraulic fracturing pipeline company on Dec. 20 filed a supplemental brief in the U.S. Supreme Court, arguing that its petition for review is not mooted by the fact that the Federal Energy Regulatory Commission (FERC) granted the company’s application for a temporary certificate for the construction of the pipeline pending completion of proceedings at the circuit court level....