One of New York City’s energy suppliers accused a rival of monopolizing the city’s liquid fuel storage market in a purported effort to drive it out of the heating oil and diesel fuel market, according to a lawsuit filed by Dechert.

Approved Oil Co. told a Brooklyn federal court that a slew of Sprague Holdings-owned companies were able to consolidate control over the city’s storage capacity for heating oil and diesel fuel, a vital “choke point” in the liquid fuel distribution network, by acquiring Buckeye Terminal, the facility that Approved uses to store fuel for future deliveries.