Correct Answer:
C. USA
The USA has been the world's largest crude oil producer since 2018, a position it is projected to maintain through 2025. This leadership is largely due to advancements in hydraulic fracturing and horizontal drilling technologies, which have unlocked vast shale oil reserves.
- Russia is a major global oil producer and exporter, but its output has been surpassed by the United States in recent years.
- Saudi Arabia, a founding member of OPEC, has historically been a top producer, but the USA's production volume has exceeded theirs.
- Iran is a significant oil-producing nation, particularly within the Middle East, but its production levels are considerably lower than the top three global producers.