As the US defense bill for the war with Iran is now estimated to be about $29 billion, the conflict’s disruption to major energy infrastructure is threatening to keep gas prices high for Americans.

US Energy Department officials raised their forecast for gas prices and warned oil futures will likely stay above $100 a barrel in the coming weeks. Retail gas prices are now expected to average $3.88 a gallon this year and $3.62 next, according to the new EIA projections.

One of the world’s largest onshore gas processing facilities located in the United Arab Emirates will not return to full operational capacity until 2027, according to its operator, after Iranian strikes hampered production.

A large oil spill is continuing to swirl in the waters off Iran’s Kharg Island. Satellite imagery shows the spill, which was identified last week, flowing southward and fragmenting as it moves.

The US war against Iran has cost $29 billion so far, according to Jay Hurst, who is performing the duties of Pentagon Comptroller. That is $4 billion higher than the figure senior Pentagon officials provided to Congress two weeks ago. However, one war budgeting expert told CNN that the conflict will ultimately cost US taxpayers at least $1 trillion.

The United Kingdom is sending autonomous mine-hunting equipment and anti-drone systems to the Strait of Hormuz, the British Ministry of Defence said.