Adams Resources & Energy, Inc. engages in the business of crude oil marketing, transportation and storage in various crude oil and natural gas basins. The company is headquartered in Houston, Texas and currently employs 703 full-time employees. The firm's segments include Marketing Segment, Transportation Segment, and Oil and Gas Segment. The firm manages its Marketing Segment through its subsidiary, Gulfmark Energy, Inc. (Gulfmark), which is engaged in marketing of crude oil. The firm operates its Transportation Segment through its subsidiary, Service Transport Company (STC), which is engaged in liquid chemicals transportation.