Contact Us


COG Company Headquarters

 3889 Hwy. 374
Green River, WY  82935

Mailing Address
P.O. Box 790
Green River, WY  82935

Telephone                                     Facsimile
(307)875-5418                          (307)875-5423

Hours of Operation: 9:00 a.m. to 5:00 p.m. Monday-Friday

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