The New York-listed owner says the fund-raising effort will help it acquire one of five vessels owned by private sponsor Dynagas Holding for which it has purchase options.

Dynagas Partners filed a prospectus supplement with the US Securities & Exchange Commission to sell "cumulative redeemable preferred units" at $25 apiece. It has not yet priced the distributions payout on the shares, which will trade separately on the New York Stock Exchange.

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