Investors are selling oil again. Here's why

Risk-taking still looks muted, but global investors have resumed buying stocks. Interest in safe haven assets like gold and the Japanese yen has leveled off. Brent crude, the global benchmark for oil prices, is back near $68 per barrel after spiking close to $71 on Monday.

Investors are shaking off the volatile political environment in part by pointing to how markets responded to the last big spike in tensions in the Middle East.

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