1. Transportation revenue and traffic of large oil pipe line companies, carriers having annual operating revenues of more than $500,000, compiled from quarterly reports (form QPS) of 47 pipe line companies; 4 quarters (Jan.-Dec.) of 1949 and 1948. Bookmark Corporate/Agency Authors: Interstate Commerce Commission Publisher: Interstate Commerce Commission Date: [1950.] SuDoc number: IC 1 pip.7:949/5