Which event occurred earliest?

Which event occurred earliest?

• A. Founding of Guffey Petroleum and Gulf Refining
• B. Discovery of Glenn Pool in Oklahoma
• C. Federal Court ordered dissolution of Standard Oil
• D. Standard Oil Trust dismembered into Standard Oil Interests

Answer: (D)

To know which event happened first, place each event on a timeline and compare their years. The Glenn Pool oil discovery in Oklahoma occurred in 1905, which is earlier than the other listed milestones. The founding of Guffey Petroleum and Gulf Refining came a few years later as oil companies formed in the 1900s, and the federal antitrust action against Standard Oil culminated in a 1911 dissolution order, with the trust being disassembled into separate interests around that time. So, by looking at the dates, the Glenn Pool discovery is the earliest event among these.

To know which event happened first, place each event on a timeline and compare their years. The Glenn Pool oil discovery in Oklahoma occurred in 1905, which is earlier than the other listed milestones. The founding of Guffey Petroleum and Gulf Refining came a few years later as oil companies formed in the 1900s, and the federal antitrust action against Standard Oil culminated in a 1911 dissolution order, with the trust being disassembled into separate interests around that time. So, by looking at the dates, the Glenn Pool discovery is the earliest event among these.