O.C.I. DIVISION / GLOBAL DRILLING SUPPLIERS INC.
370 Industrial Park Road
Brookville PA 15825 
        FAX Telephone    
www.ocidivision.com +1 (814) 849-6288 +1 (800) 453-6400

DFI Corporate Representatives:
James W. Rupert Vice President +1 (800) 453-6400
Mark D. Kuenning President +1 (513) 671-8700

Individual Corporate Members:
Chris Kalgren Sales +1 (800) 453-6400
Don Nolder Sales +1 (800) 453-6400
Jacki Rupert Admin +1 (800) 453-6400
Josh Rupert Service and Repair Dept MNGR +1 (800) 453-6400

Services, Materials and/or Equipment offered:
Manufacturer and distributor of drilling accessories for the construction industry for both domestic and international projects. Project planning and consulting services are available. Specialists in overburden drilling applications.