Which company was the predecessor of Pure Oil Company?

• A. Standard Oil Company
• B. Producers' and Refiners' Oil Company
• C. Union Oil Company
• D. Gulf Oil Corporation

Answer: (B)

The key idea is tracing Pure Oil’s historical roots. Pure Oil grew out of the Producers’ and Refiners’ Oil Company, a vertically integrated firm that combined both production and refining activities. Through consolidation and branding changes in the early oil industry era, this predecessor ultimately became aligned with the Pure Oil name. The other companies listed are separate and did not serve as the direct predecessor to Pure Oil.