The Federal Energy Regulatory Commission has published a Combined Notice of Filings listing three natural gas pipeline rate and refund report filings received. Black Hills/Kansas Gas Utility Company filed under Section 284.123 (AVTS Filing effective 4/1/2026); Portland Natural Gas Transmission System filed an administrative tariff update (effective 6/1/2026); and Transwestern Pipeline Company filed a negotiated rate filing (effective 5/1/2026). The notice establishes comment deadlines and instructs interested parties on intervention procedures.
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