DALLAS SERVICE CENTER

LINK SIMLUATION & TRAINING DIVISION

All Other Information Services, Computer Systems Design Services, Computer Facilities Management Services, Other Computer Related Services, Other Scientific and Technical Consulting Services

Commercial and Institutional Building Construction, All Other Specialty Trade Contractors, Surgical and Medical Instrument Manufacturing, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers, Other Professional Equipment and Supplies Merchant Wholesalers

Oil and Gas Pipeline and Related Structures Construction, Other Foundation, Structure, and Building Exterior Contractors, Plate Work Manufacturing, Oil and Gas Field Machinery and Equipment Manufacturing, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Main

Electrical Contractors, Other Computer Related Services, Computer and Office Machine Repair and Maintenance

Power and Communication Line and Related Structures Construction, Electrical Contractors, All Other Specialty Trade Contractors, Printed Circuit Assembly (Electronic Assembly) Manufacturing, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Main

Electrical Contractors, Communication Equipment Repair and Maintenance

Commercial and Institutional Building Construction, Plumbing, Heating, and Air-Conditioning Contractors, Other Building Finishing Contractors, All Other Specialty Trade Contractors, All Other Miscellaneous Chemical Product and Preparation Manufacturing

Electrical Contractors, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers, Software Publishers, Data Processing, Hosting, and Related Services, Custom Computer Programming Services

CUSTOMER CARE OPERATIONS

Commercial and Institutional Building Construction, All Other Specialty Trade Contractors, Power, Distribution, and Specialty Transformer Manufacturing, Other Miscellaneous Durable Goods Merchant Wholesalers, All Other Support Activities for Transportation

Freight Transportation Arrangement, Other Automotive Mechanical and Electrical Repair and Maintenance

WEST TEXAS REST & REF. INC

PRODUCT SERVICES

Computer and Office Machine Repair and Maintenance

Electronic Computer Manufacturing, Computer Storage Device Manufacturing, Other Electronic Component Manufacturing, Office Equipment Merchant Wholesalers, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers

Other Electronic and Precision Equipment Repair and Maintenance

POWER RENTAL

Motor Vehicle Towing, General Automotive Repair, Automotive Exhaust System Repair, Automotive Transmission Repair, Other Automotive Mechanical and Electrical Repair and Maintenance