US Seismic Systems Receives Order for Custom Downhole Seismic Arrays

US Seismic Systems, a subsidiary company of Acorn Energy, Inc.

announced today that it has received an order for custom downhole seismic systems based upon its revolutionary fiber optic sensor technology from a leading international oilfield seismic equipment company. The value of this contract to USSI once in full production is anticipated to be approximately $6 million annually. This is the third significant order received by USSI from a major oilfield equipment company in 2011. Jim Andersen, CEO of USSI said, "This order, which is for high temperature, permanent downhole systems, addresses the growing need for high resolution seismic systems designed to facilitate enhancing the recovery from mature, declining oilfields. We continue to have meaningful negotiations for the integration of our seismic systems in the solutions of a number of innovative players in the oilfield business."