(The Center Square) – Eleven states, led by Texas, have sued the three largest institutional investors in the world for allegedly conspiring to buy coal company stocks to control the market, reduce competition and violate federal and state antitrust laws.

The lawsuit was filed in U.S. District Court for the Eastern District of Texas Tyler Division and demands a trial by jury. It names as defendants BlackRock, Inc., State Street Corporation, and Vanguard Group, Inc., which combined manage more than $26 trillion in assets.