An investor in the Gulf of Mexico oil well that was the centerpiece of the country's largest spill has agreed to a $90 million settlement to resolve settle claims flowing from the April 2010 disaster. MOEX...a unit of Mitsui...will pay $70 million in civil penalties for violations of the Clean Water Act, the U.S. Justice Department said today...The company agreed to an additional $20 million to fund land acquisition projects to preserve habitat in several states along the Gulf of Mexico...DOJ [Department of Justice] said the MOEX settlement does not affect the potential liability or recoveries from the five other defendants in the case...An attorney for MOEX, Thomas Campbell...was not immediately reached for comment.[also refers to BP]