15th June 2026
If the US–Iran peace deal holds and the Strait of Hormuz fully reopens, you should expect some easing in oil, gas, and electricity prices—but not immediately. The earliest visible effects for Caithness and the wider Highlands are likely 4–12 weeks after stable shipping resumes, with full impacts taking 3–6 months.
Below is a clear, evidence‑based timeline using what we know from current reporting.
Oil & Heating Oil: When will prices fall?
Global oil prices surged because the conflict removed over 10% of global supply when Iran restricted the Strait of Hormuz, the largest disruption in history . Even after the ceasefire, hundreds of tankers remain stranded awaiting safe passage guarantees .
Realistic timeline for price relief
0–4 weeks:
Markets remain volatile. Even with a peace deal, traders wait for proof that tankers can move freely again. Prices may stay high or fluctuate.
4–8 weeks:
If shipping lanes reopen properly, crude supply begins to normalise. This is when heating oil prices in the UK could start to ease, as refiners get cheaper feedstock.
8–12 weeks:
More stable downward movement becomes possible. This aligns with analysts warning that stocks were approaching crisis levels by late June—so recovery takes time even after peace .
For Caithness specifically
Heating oil is bought in bulk and priced weekly. You’ll likely see:
First small reductions: late July–August
More meaningful drops: September onward
Full normalisation: depends on whether Hormuz stays open without new incidents.
Gas Prices: When will they fall?
Gas markets were hit because LNG tankers also pass through Hormuz. The conflict removed 20% of global LNG supply in some scenarios .
Timeline
0–6 weeks:
No immediate change. LNG shipping is slower to restart than oil.
6–12 weeks:
UK wholesale gas prices could begin to ease if LNG flows resume.
3–6 months:
This is when households might see lower bills—but only if Ofgem’s price cap reflects sustained lower wholesale prices.
Electricity Prices: When will they fall?
UK electricity prices track gas prices because gas still sets the marginal price in the grid.
Timeline
No change until gas prices fall.
Expect any reduction to appear in the next Ofgem price cap cycle, which typically lags wholesale markets by 3 months.
So even if peace stabilises markets in July, electricity bills may not fall until October or January.
What this means for Caithness households
Caithness is more exposed than urban areas because:
High reliance on heating oil
Higher transport costs baked into local deliveries
Rural premiums on electricity standing charges
So even when global prices fall, local reductions lag by a few weeks.
Likely order of relief
Crude oil prices fall first
Heating oil follows (2–6 weeks later)
Gas prices ease (6–12 weeks)
Electricity bills fall last (3–6 months)
If the US–Iran peace deal holds and Hormuz stays open:
Heating oil: first relief late July–August; bigger drops by autumn
Gas: easing from late summer
Electricity: autumn or winter price cap cycles