Energy Market Briefing

Monday 21 September 2026 · Generated 09:50 BST · Since Friday morning

UK gas and power firmed into Friday's close as the Gulf crisis deepened with a Houthi missile fired directly at Riyadh for the first time, and European gas has pushed higher again this morning on a tight storage picture, even as oil eases on hopes of a Strait of Hormuz de-escalation.

UK Gas▲
NBP Win-26 firmed into Friday's close, up 3.3% day-on-day
UK Power▲
Power followed gas higher, Win-26 up 2.8% into Friday's close
EU Storage▼
69.6% full, 17.4pp below the 5-year norm
Market bias
Firm, mild upside risk on gasSofter · Firmer
UK and European gas keep firming on tight storage and Gulf risk, even as oil eases.
UK gas Win-26
6.79p/kWh
+3.3% day-on-day at Friday's close
UK power Win-26
15.89p/kWh
+2.8% day-on-day at Friday's close
EU gas storage
69.6% full
17.4pp below 5yr norm
TTF prompt
79.52EUR/MWh
+4.2% on the day
Brent crude
101.81$/bbl
lower on the day

Today's headlines

1 · GEOPOLITICS
Houthi rebels fired a ballistic missile directly at Riyadh at the weekend, the first strike on the Saudi capital since the fighting escalated.
First strike on the Saudi capital
Yemen's Iran-aligned Houthi movement fired a ballistic missile at Riyadh in the early hours of Saturday, the first time the group has targeted the Saudi capital directly since the latest escalation began. Saudi air defences intercepted the missile before it reached its target, and the Houthis said they also struck an Aramco facility at Yanbu with cruise missiles and drones.
A widening front
The attack followed a week of intensifying Houthi strikes on Saudi oil infrastructure and shipping, and comes alongside continuing Israel-Iran tension since the February war began. US embassies across the region have warned citizens that airspace could close at short notice.
Diplomacy still stalled
Iran is demanding Washington meet commitments made under the collapsed June memorandum of understanding, including lifting the naval blockade and unfreezing frozen assets, before it will resume talks. There is no sign of a breakthrough, even as markets watch for one.
2 · MARKETS
UK gas and power firmed into Friday's close as the Gulf crisis darkened, with European gas pushing higher again while oil eases on diplomacy hopes.
Gas leads the move
UK gas for Winter-26 firmed roughly 3% into Friday's close and power followed higher, with gas continuing to set the marginal price. European TTF has pushed further above EUR79/MWh this morning, extending a run that took it above EUR80/MWh for the first time in three years earlier this month.
Oil pulls the other way
Brent crude has eased by around 2% today, weighed down by hopes of Iran diplomacy and signs that tanker traffic through the Strait of Hormuz is picking up. The gap between a firming gas market and a softer oil price reflects how differently the two are currently being driven.
A market still on edge
Even with oil easing, the forward curve for UK gas and power remains elevated across every season out to Summer-29, a reminder that the market is pricing persistent risk rather than a single event.
3 · SUPPLY
The US military says tankers are moving through the Strait of Hormuz at the fastest pace in six months, easing the physical supply squeeze.
Hormuz traffic picks up
US Central Command says the volume of crude, cargo and LNG moving through the Strait of Hormuz over the past fortnight is the highest in six months, with more than a billion barrels of oil and over 2,000 commercial transits escorted through the strait in the past two months.
Saudi pipeline nearing restart
Saudi Arabia is working to bring back around half the capacity of its East-West pipeline within days, after drone strikes forced its closure earlier this month, with full capacity expected within around six weeks.
A cautious read
None of this amounts to a resolution. Iran has still exported no oil under the blockade, and the easier Hormuz flows described by CENTCOM apply mainly to escorted allied and Gulf tanker traffic rather than a full reopening.

Forward curve & seasonal movesi

UK powerUK gas NBPmonthly forward, p/kWh · market close on 18 September 2026
0.04.79.414.118.8202720282029203020312032
18 Sep 2026
SeasonPowerΔGasΔ
Win-2615.89+2.82%6.79+3.34%
Sum-2710.57+2.19%4.59+3.04%
Win-2710.70+2.40%4.40+2.61%
Sum-287.08+1.35%2.82+2.36%
Win-288.08+1.64%3.05+1.46%
Sum-296.78+1.21%2.38+1.38%
Seasonal contracts in p/kWh, change is day on day, as of market close on 18 September 2026.

UK generation mixi

31.7GW demand
Gas (CCGT + OCGT)8.81 GW27.8%
Interconnectors5.83 GW18.4%
Wind3.85 GW12.2%
Solar3.79 GW12.0%
Nuclear3.50 GW11.1%
Biomass3.02 GW9.5%
Hydro + pumped storage0.76 GW2.4%
Other2.12 GW6.7%
As of 21 September 2026, 09:40 BST. Tap a fuel or a slice to isolate it, tap again to reset.

EU gas storagei

Now
69.6%
5yr norm
87.0%
-17.4pp vs 5yr normDashed line: 90% winter target
Winter 2026/27 target is 90% of capacity by 1 December, with Commission flexibility down to 80%. As of 19 September 2026.

Other commoditiesi

TTF▲+2.91%JKM▲+2.84%Brent▼-0.91%WTI▼-1.58%UK carbon▼-0.68%EU carbon▲+1.01%FTSE 100▼-1.45%GBPUSD▲+0.28%GBPEUR▲+0.21%Gold▲+0.85%TTF▲+2.91%JKM▲+2.84%Brent▼-0.91%WTI▼-1.58%UK carbon▼-0.68%EU carbon▲+1.01%FTSE 100▼-1.45%GBPUSD▲+0.28%GBPEUR▲+0.21%Gold▲+0.85%
Global gasiTTF▲+2.91%JKM▲+2.84%
30405060708090TTF (€/MWh)15202530JKM ($/MMBtu)Apr 26Jun 26Aug 26
OiliBrent▼-0.91%WTI▼-1.58%
708090100110120Brent ($/bbl)60708090100110120WTI ($/bbl)Apr 26Jun 26Aug 26
CarboniUK carbon▼-0.68%EU carbon▲+1.01%
3040506070UK carbon (£/t)60708090EU carbon (€/t)Apr 26Jun 26Aug 26
FTSE 100i▼-1.45%
9,50010,00010,50011,000FTSE 100 (£)Apr 26Jun 26Aug 26
ForexiGBPUSD▲+0.28%GBPEUR▲+0.21%
1.311.321.331.341.351.361.37GBPUSD1.141.151.161.171.181.19GBPEURApr 26Jun 26Aug 26
Goldi▲+0.85%
3,8004,0004,2004,4004,6004,8005,000Gold ($/oz)Apr 26Jun 26Aug 26
Past 6 months of daily closes. As of 18 September 2026. Change shown is the latest close against the previous close.