This green stock certificate from Mississippi River Corporation, issued in 1965, features a vignette of two men, an oil pipe, and a train and is registered in Delaware.

The Mississippi River Corporation was originally incorporated on February 8, 1928, as the Mississippi River Fuel Corporation. It was established by a consortium that included Standard Oil Company (New Jersey), Columbian Carbon Company, United Carbon Company, Electric Power & Light Corporation, and Moody-Seagraves and Palmer Corporation. The company initially operated gas pipelines from the Richmond and Monroe gas fields in Louisiana, supplying customers in Arkansas, Missouri, and Illinois.

In 1949, under the leadership of President William G. Marbury, the company began to diversify its operations. In 1959, it acquired shares in the Missouri Pacific Railroad, and by 1962, it held a majority vote in the railroad. A legal dispute with the Alleghany Corporation over corporate control of the Missouri Pacific Railroad was resolved in 1974, resulting in Mississippi River Fuel Corporation gaining full control of the railway, owning 66.3% of its shares.

Between 1963 and 1964, the company expanded its business by acquiring several companies in the concrete and cement production sectors. In 1965, reflecting its broader business interests, the company was renamed Mississippi River Corporation. By 1974, it had three main subsidiaries: the Missouri Pacific Railroad Company, Mississippi River Transmission Corporation (gas pipeline operations), and River Cement Company.

In 1976, the company was rebranded as the Missouri Pacific Corporation. In 1980, it agreed to merge with Union Pacific Corporation, a merger that was approved on December 22, 1982.