ACT Fuel Prices – Week of 15 June 2026

Canberra drivers caught a break this week. Every fuel type tracked across the ACT fell in price, with diesel leading the charge down by a substantial 10.6c to reach a metro weekly average of 203.2 c/L. U91 continued its quiet but consistent slide, now cheaper for the fourth week in a row.

ACT Fuel Price Snapshot: 15 to 22 June 2026

Rural data is not available for ACT this week.

ACT Petrol Prices in Detail: What Moved and Why It Matters

Diesel's drop is the standout story. A fall of 10.6c in a single week is significant, and if you drive a diesel vehicle, filling up now looks a lot more appealing than it did seven days ago. That said, at 203.2 c/L, diesel still sits 32.3c above U91, which is a notably wide gap, so petrol drivers remain considerably better off per litre.

U91 eased from 172.2 c/L on Monday the 15th down to 170.0 c/L by Saturday the 20th, a smooth and steady decline with no mid-week spikes or reversals. P95 followed almost the same pattern, drifting from 191.2 c/L to 188.2 c/L across the week. E10 dropped steadily too, ending the week at 168.4 c/L, making it the cheapest option available right now.

If you've been watching ACT prices over the past month, context matters here. U91 metro has ranged from 154.7 c/L at its cheapest to 199.9 c/L at its most expensive over the last 30 days. The current 170.9 c/L sits closer to the middle of that range, so there's room for prices to fall further before hitting recent lows.

How Much You Can Save Shopping Around for ACT Fuel

The spread between the cheapest and most expensive metro stations this week is striking. Costco Canberra Airport (Members Only) was pricing U91 at 154.7 c/L, while the priciest metro station came in at 189.9 c/L. That's a 35.2c gap, meaning a 50-litre fill-up at the cheapest station saves you around $17.60 compared to the most expensive.

Brand averages tell a similar story. Metro Fuel averaged 167.3c across its 8 stations, while 7-Eleven averaged 173.3c across 13. That 6c difference adds up over time, especially if you fill up weekly.

Last Saturday, the 20th of June, was the cheapest day to fill up on U91 metro last week, with the average sitting at 170.0 c/L.

ACT Metro Petrol Price Forecast: Late June 2026

The short-term outlook for Canberra metro drivers is encouraging. U91 metro is forecast to ease from the current 170.9 c/L down to 169.5 c/L on Sunday the 22nd (78% confidence), then 168.4 c/L on Monday the 23rd (71% confidence), and potentially 166.8 c/L by Tuesday the 24th (65% confidence). Confidence does drop as the forecast extends, but the direction is clearly downward.

One broader note: ACT is currently the most expensive state for U91 in the country, sitting 7.5c above the national metro average of 163.4 c/L. South Australia is the cheapest at 156.7 c/L.

What This Means for Your Weekly Budget

If you can hold off a day or two before filling up, the forecast suggests prices will keep easing into early next week. E10 at 169.1 c/L is your cheapest option right now, and the brand and station gap means where you fill up matters enormously in the ACT. A quick check before you leave the driveway could genuinely save you $15 or more on a single fill.

Petrol Smart shows you live prices across Canberra on a map so you can spot those cheaper stations before you're already driving past an expensive one. Download it for free, no ads, no subscriptions, and set a price alert so you know exactly when prices dip to your target.