46 U.S.C. § 41106 — Marine terminal operators

agree with another marine terminal operator or with a common carrier^* to boycott, or unreasonably discriminate in the provision of terminal services to, a common carrier or ocean tramp;

give any undue or unreasonable preference or advantage or impose any undue or unreasonable prejudice or disadvantage with respect to any person; or

unreasonably refuse to deal or negotiate.