Which peninsula is associated with Alaska's first major oil discovery?

• A. Kenai Peninsula
• B. Alaska Peninsula
• C. Chukchi Peninsula
• D. Alaska Range

Answer: (A)

Alaska's first major oil discovery happened on the Kenai Peninsula. In 1957, the Swanson River oil field was found there, by Richfield Oil Company, marking the first large onshore oil discovery in the state. This milestone sparked ongoing exploration and development in Alaska’s oil industry and shaped the region’s economic future. The other options don’t fit because they refer to different areas or features not tied to that landmark event—the Alaska Peninsula and Chukchi Peninsula are distinct peninsulas with separate histories, and the Alaska Range is a mountain range, not a peninsula.