The oceans and seas, though vital for maritime trade and commerce, can often be very dangerous and unpredictable, with storms and powerful waves causing terrible ship accidents. Navigational errors or miscommunication among the crew also lead to ship collisions, fires, oil spills and other catastrophic events. This shows that the risks in maritime transportation are immense, and this is where marine insurance steps in, providing a financial safety net against massive losses. In this article, we will discuss the largest maritime insurance payouts. These payouts encompass not just the value of the ship and its cargo, but also the extensive salvage operations, environmental clean-up costs, business interruption losses and third-party liabilities as well. 1. Deepwater Horizon Oil Spill (2010) First in the list is the most renowned incident, which was also the most tragic in terms of its effects. The Deepwater Horizon Oil Spill began on April 20, 2010, in the Gulf of Mexico or Gulf of America, after an explosion and sinking of the Deepwater Horizon Oil Rig, releasing about 200 million gallons of oil into the ocean for more than 87 days. The oil spill led to massive environmental damage, affecting coastal systems, marine life and the local economy, leading to the total costs for BP estimated at $61.6 billion as of 2016. This figure includes the expenses of cleaning the coasts, damage claims, legal settlements and fines. Image Credits: Wikipedia The biggest single settlement was the $20.8 billion agreement, which was reached in 2016 between BP and the government of the United States and the 5 Gulf Coast States, which was approved by a Federal District Judge. It included $5.5 billion for Clean Water Act civil penalties, $8.1 billion for natural resource damages and $4.9 billion to the 5 Gulf states for economic damages and other claims. The Gulf Coast Claims Facility, which managed claims from individuals and businesses, paid an additional $6.2 billion to more than 220,000 claimants. BP also spent more than $14 billion on cleanup operations by January 2013. Transocean, the owner of the rig, agreed to pay $1.4 billion in civil and criminal fines. Halliburton settled for $1.1 billion. Though BP was largely self-insured, Transocean had a $700 million insurance policy, which was a subject of litigation. The total insured losses across the market, encompassing various covers, were in the billions, though not a single “payout” from one insurer. 2. Francis Scott Key Bridge Collapse (2024) The recent collapse of the famous landmark in Baltimore and a major trade lane is said to be one of the most expensive marine insurance losses. Though final figures are still being calculated due to the ongoing investigations and litigation, current estimates for total insured losses range widely, with several experts suggesting that they could exceed $2 billion to $4 billion and even higher. The cost to replace the bridge has been estimated at $1.7 billion to $1.9 billion. Chubb Limited, the bridge’s insurer, has approved an initial $350 million payout to the Maryland Transportation Authority as part of its property insurance policy. Image Credits: Wikipedia The owner of the ship Dali, Grace Ocean Private Ltd., and its manager, Synergy Marine Group, filed a petition to limit their liability to $43.6 million under the Limitation of Liability Act of 1851. This will influence the ultimate net payouts from the vessel’s insurers. Grace Ocean and Synergy Marine Group have