Mark Lietzke

Tribex LTC LLC engages in the health care and pharmaceuticals business. The company is headquartered in Tulsa, OK.

SemGroup LP is a company that moves energy safely through a network of pipelines, terminals and storage tanks. Each step the company take demonstrates the vast experience of their employees, their dedication to add value to their customers’ business, and their desire to bolster the relationships. Founded in 2000, their newly reorganized company purchases, sells, processes, transports, and stores energy including crude oil, natural gas, natural gas liquids, asphalt and refined products. Their family of companies is fully operational and has financing firmly in place. All divisions are committed to a “zero incident” culture, with employees working to keep the public, and each other, safe.

Wiltel Communications Group, Inc. provides customized communications solutions to enterprises, and federal government. The company was founded by Robert D. Williams and is headquartered in Tulsa, OK.

Arrow Trucking Co. provides general commodities transportation services. Its services include hauling freight such as construction materials and oil field equipment on flatbed trailers, regional flatbed service, transports oversize and overweight loads. The company was founded in 1948 and is headquartered in Tulsa, OK.