What is the modern name that Ohio Oil Company later became?

• A. Sunoco
• B. Conoco
• C. Marathon
• D. Texaco

Answer: (C)

Mergers and branding in the oil industry create long-lasting lineages, where an early company’s name survives in today’s corporate brands. The Ohio Oil Company, through subsequent branding decisions, adopted the Marathon name and operated as Marathon Oil Company for many years. That Marathon lineage continued, with the downstream business evolving into Marathon Petroleum Corporation in the modern era. So the name that ultimately carries the legacy back to Ohio Oil is Marathon, which is why that choice is the best answer. The other names come from different corporate lineages and are not direct descendants of Ohio Oil.