What are the laws against anti-competitive practices?

Asked in Spring, TX - 4 months

There is a club of British professionals and companies in Houston, Texas, who deal among themselves and routinely reject competition. Example: a Scottish company builds interlocking systems for pipeline jumpers used underwater. Their system is becoming a standard product and is requested by many Oil companies for all their offshore work. I ordered this interlocking system from their dealer in Houston. They refused to sell it to me. I found out that they took advice from one of my competitors (a British man). What is my recourse?