Publications are free to GPA Midstream and GPSA members and are accessible through the members-only Data Book and Publications Cloud. Any employee of member companies may access the cloud by visiting GPAmidstream.org/login and creating a free account using your work email address. Once you create an account, log in and click on Cloud-Based Data Book and Publications. Non-members may purchase publications and are not required to create an account to make a purchase. Non-members should use the links below to find and purchase publications of interest.