The claim is supported by all three supplied X posts: x post 2046641790564909417, x post 2046640227347820640, and x post 2046679275659493558 each state that Brent crude rose back above $100 per barrel on 2026-04-21 after U.S.-Iran peace talks were paused or put on hold. Independent corroboration appears in the Reuters result titled Brent futures retreat on Iran ceasefire extension after brief ... - Reuters, whose snippet says oil briefly climbed above $100 a barrel. CNBC's Daily Stock Market Live also supports the broader causal context by reporting investor concern that a U.S.-Iran peace deal would not be struck. Because the strongest independent source available here is partly via search snippet rather than a fully fetched article body, confidence is medium rather than high.