Group Petroleum Services, Inc. is a Texas Corporation with 32 years of experience in the gasoline and diesel freight delivery business. Mission: We are people dedicated to meeting the transportation needs of our customers in a safe and effective manner, on-time and for a commercially economical price. Philosophy: Service is our product. Safety is foremost in our operations. Our customers deserve quality service and value. Driving Force: Superior Customer Service Our Pledge: Professionalism is GPS’ trademark. It is management’s unwavering commitment that every employee of GPS will act in an ethical manner, exercise good judgment, show respect and deliver on promises.