Thursday 11 December 2025 · moved the Index · plateau
US seizes tanker off Venezuela
The US seized the oil tanker Skipper, a sanctioned 'dark fleet' vessel linked to Iranian oil trade, off the coast of Venezuela, with President Trump announcing the seizure on December 11, 2025. Venezuela condemned the seizure as an act of piracy, Cuba called it maritime terrorism, and Iran denounced it as piracy in the Caribbean Sea, while ship-tracking showed the tanker heading away from Venezuela under US control. Coverage noted the seizure put more than 30 sanctioned vessels in Venezuela on notice, and attention remained elevated through late December 2025.
Peak 273.9 on Thursday 11 December 2025. The shaded band is the incident window.
Where the attention came from
Mixed, both over the window and on the peak day. Mixed means no single signal dominated — the attention was spread across search, research, news and social.
Bar = share of the extra attention over the whole window; the tick marks the share on the peak day alone, where the two differ.
How unusual it was
The #4 incident since 2020 by peak. Its peak day ranks #22 among all days — the higher days all belong to 4 bigger incidents.
How far it spread
Stayed in one vessel type — 1 of 6 vessel-type groups drew clearly more readers than usual.
Readers here means readers of the Wikipedia article on each vessel type — the same source as the Research signal, not news coverage — so an incident can dominate the news without moving this panel. Bars start at 1× — normal readership for that vessel type, the weeks before the incident. Grey = no clear lift. "Over time" shows each group's daily readers through the window; "All 12 articles" breaks the six groups back into their members.
How it was framed the frame glossary →
Lead frame: human drama. Trade press was 1% of in-scope coverage — the story had left the trade press and gone mainstream. (Historical coverage is scored on headlines only.)
Acting, or acted upon
In 73% of coverage shipping was the thing acted upon rather than the actor.
How the coverage sounded
Coverage ran 76% negative overall; 4% strongly so.
Each article is scored on a five-step scale from strongly negative to strongly positive; the bar is the share of coverage at each step.
Maritime Attention Index, incident: US seizes tanker off Venezuela, peak 273.9 on 11 December 2025. maritimeattentionindex.com/incidents/2025-us-seizes-tanker-off-venezuela/