Tulsa-Sapulpa Union Railway Co.

The Tulsa-Sapulpa Union Railway (reporting marks, TSU) history dates back to Oklahoma's earliest history as a state. Originally the line was conceived as an interurban and operated under a different name and has only been known as the TSU since World War II. As with virtually all interurbans the two primary lines that made up what would become the TSU were unsuccessful in their first attempts; one to serve the town of Tulsa and the other the town of Sapulpa to the south. After merging and purchasing a third interurban they had somewhat more successful. Unfortunately, it took an additional bankruptcy until the line found its footing, which didn't occur until World War II thanks in large part to an interchange with two Class Is at Tulsa. Since that the railroad has sustained itself through a steady diet of local freight traffic and continued interchange with two Class Is despite the fact that it operates only a portion of its original main line.