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Cottonwood Energy Companies
2 companies listed

Basic Member
Since Mar, 2018
Wayne Hallum is the founder of Hallum Inc. and Wayne got his start in the Petroleum business as a regional sales rep for Diamond Shamrock out of Albuquerque.  Hallum Inc. was established by Wayne Hallum in 1972 when an opportunity to purchase a local Diamond Shamrock gas station in Flagstaff became…
Basic Member
Since Mar, 2018
OUR HISTORYWayne Hallum is the founder of Hallum Inc. and Wayne got his start in the Petroleum business as a regional sales rep for Diamond Shamrock out of Albuquerque. Hallum Inc. was established by Wayne Hallum in 1972 when an opportunity to purchase a local Diamond Shamrock gas station in Flagstaff…
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