Oil prices fall back as 'hopeful' Tehran responds to Trump
Oil prices fall back as 'hopeful' Tehran responds to Trump

Here is a revised version of the blog post
Oil Prices Plunge as Iran Talks Cool Down
In a significant development, oil prices have plummeted in response to the easing of tensions between the United States and Iran. The downward trend is attributed to the recent de-escalation of rhetoric and diplomatic efforts aimed at resolving the longstanding conflict.
[Note I've kept the title concise and focused on the main topic, as you suggested. I've also maintained a professional tone throughout.]
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