Since 1950, Coates Field Service, Inc. has been exclusively in the business of land and right of way acquisition services. Co ... ates Field Service, Inc. provides comprehensive project management, including route selection, title searches, survey and mapping, appraisal, negotiation, relocation, and damage settlement. The first company of its kind, Coates has established a national reputation as a leader in the land and right of way acquisition industry. Corporate headquarters are in Oklahoma City, Oklahoma with divisional offices in Houston, Texas; Tallahassee, Florida; Walnut Creek, California; and Pittsburg, Pennsylvania. read more