Abstract The roles service company engineers play in the oil and gas industry have changed drastically over the last decade. Prior to 1990, the engineering staff employed by the operating company did most reservoir and production history analysis. The last decade has seen this situation change. During the 90's, while seeking to streamline their own operations, many operating companies began to depend much more heavily upon service company engineers to do the background work described above. Working relationships evolved to the point that service company engineers are often stationed at the operating companies’ facilities while performing duties that had previously been the responsibility of the operating companies’ reservoir or production engineering departments. This creates an atmosphere of increased service company accountability. Directly proportional to this increase in accountability is the degree of service company engineer responsibility. No longer does the service company engineer simply design treatments based upon the request of the customer. To meet these demands, service companies have had to implement training programs that equip their engineering staffs with the tools to perform these new job responsibilities, including reservoir, drilling and completions engineering functions. This paper will describe a grid curriculum structure developed to meet the needs of pressure pumping service company engineers. A vast array of classes, some of which were never before available to service company engineers from within, have been viewed as essential to the success of the operating/service company partnerships. As we move into the next millennium, the curriculum structure must be flexible enough to meet the ever-changing needs of the industry. How will these individuals’ roles change over the next decade? No one knows for sure. If the changes are as profound as the last decade, the training program's scope and flexibility are crucial for its future success. Introduction As soon as hydrocarbon production from underground reservoirs became an economically attractive enterprise, service companies were formed to provide the innovative technologies, equipment and products required by the production and operating companies in their new endeavors. Suppliers of raw materials and equipment for the service companies appeared almost simultaneously to feed the developing enterprises. Indeed an industry was formed. Initially, the service companies were conceived and formed due to one or more demands or requirements exhibited by the production companies. The production companies knew what was necessary for success, since they were much more mature and knowledgeable in the new industry from a reservoir exploitation standpoint 1 . Very little input was requested from the service companies concerning products and job design, since the production companies controlled the knowledge base for reservoirs in most of the geographical areas. As a result, the new service companies were given specific, detailed instructions regarding equipment requirements and operational procedures. As the oil industry has matured, technical personnel employed by many pumping service companies have been required to become more competent in areas that were heretofore only addressed by production company personnel. Many production companies have seen the benefits of more ‘open’ relationships with their contractors. Contractors’ expertise is now utilized to a much greater extent and in progressively earlier stages of the well designs. 2 To provide their technical personnel with the tools needed, in this environment of cooperative effort towards desired results, pumping service companies must make training programs available to them which address areas that before were the sole responsibility of the producing companies’ personnel.