Contact Us Sentinel Power Services' technical and sales personnel are available to assist you at any time. Please do not hesitate to contact us via phone, fax or e-mail. For after hours or emergency support, contact us 24/7 via our phone number. As a member of Group CBS, assistance is also available from other group companies.

Telephone (24/7):   Facsimile: E-mail: Address:     Greg Ellis, President/GM:   Jack Heflin, Sales:   Brian Roberts     Toll Free: 800-831-9550 Local: 918-359-0350 918-359-0357 info@sentinelpowerservices.com Sentinel Power Services, Inc. 7517 East Pine Street Tulsa, Oklahoma 74115 Cell Phone: 918-520-7999 gellis@sentinelpowerservices.com Cell Phone: 918-633-5224 jheflin@sentinelpowerservices.com Cell Phone: 918-688-3666 broberts@sentinelpowerservices.com

After Hours or Emergency Support Call anytime: 800-831-9550 Group CBS Emergency Support