油田

1. Origins, structure, and basic meaning

• Structure: 油田, read ゆでん, combines oil 油 with producing field 田 as the name of a petroleum deposit area.
• Basic usage: It denotes an area containing petroleum deposits for extraction, as in 海底油田.

2. Common pitfalls and similar expressions

• Scope and context
  • It means a natural underground or seabed petroleum deposit, not an artificial facility for storing oil.