Suburb fuel prices

Cheap Unleaded 91 in South Boulder Western Australia 6432

6.3c below the Western Australia averageSouth Boulder is 8.9c/L under its 30-day average right now — near the bottom of the cycle.

Prices as of 4 hr ago AEST · sourced from FuelWatch

South Boulder · U91Below the state avg

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U91 in South Boulder is cheaper than the Western Australia average

South Boulder sits 6.3c below the Western Australia average. South Boulder is 8.9c/L under its 30-day average right now — near the bottom of the cycle.

How it compares

  • Western Australia state avg168.5c/L-6.3c/L
  • National avg165.5c/L-3.3c/L
  • Wholesale (TGP)154.1c/L+8.1c/L
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30-day spread · U91

South Boulder U91 cycle

South Boulder is currently 8.9c/L below its 30-day average — a relatively good time to fill up.

30-day low

165.9c/L

Lowest point in the local spread

30-day average

175.8c/L

30-day high

193.9c/L

Today's average

166.9c/L

165.0179.5194.027 May9 June25 June
Daily averageMin–max spread across South Boulder stations

7-day outlook

South Boulder 7-day U91 outlook

Rising · +4.5c/L over 7 days

South Boulder prices follow the Perth cycle, so this outlook takes the Perth U91 forecast and adjusts it to South Boulder's own price level using 90 days of local history. You can see the Perth benchmark alongside the local estimate below.

Today until the cycle trough — usually the cheapest day.

South Boulder today (est.)

170.7c/L

Perth 160.0c/L · +10.7c/L local

Predicted in 7 days

175.2c/L

7-day range

167.0 – 183.4c/L

166.0175.0184.0ThuFriSatSunMonTueWed
Predicted price90% confidence band

All fuel types

Fuel prices in South Boulder by type

Low, average and high for each fuel type from the 11 stations tracked here.

FuelLowAvgHighStationsCheapest at
U91156.9c162.2c167.9c11Fuel & Fly Kalgoorlie
P95178.9c179.3c179.9c4Ampol Foodary Kalgoorlie South
DSL184.5c187.6c191.9c7Fuel & Fly Kalgoorlie
P98171.9c184.6c191.9c7Fuel & Fly Kalgoorlie
PDSL185.9c187.2c189.9c3Ampol Foodary Kalgoorlie South

At a glance

South Boulder fuel prices at a glance

Cheapest U91
156.9 c/L
Suburb average
162.2 c/L
Price range
11.0c spread
Stations tracked
11
Brands
7
Postcode
6432
Last updated
25 June 2026, 12:00 pm AEST

Explore the area

Browse fuel prices around South Boulder

Step up to the city and state, compare neighbouring suburbs, or open the live U91 map.

South Boulder snapshot

Live U91 prices in South Boulder

Today's prices

In South Boulder, Western Australia, the cheapest U91 today is 156.9c with an area average of 162.2c across 11 listed stations. Other fuels tracked in this suburb include P95 from 178.9c, DSL from 184.5c and P98 from 171.9c.

Tomorrow's FuelWatch prices

FuelWatch WA has published tomorrow's prices for 11 station-grade listings around South Boulder. Eagle West Kalgoorlie Truckstop is the cheapest tomorrow at 156.9c for U91 (0.0c vs today).

How it compares

South Boulder is currently 6.3c below the Western Australia state average of 168.5c. Open the live fuel map to see how individual stations spread within South Boulder.

Compare neighbouring suburbs

Cheaper fuel may be nearby — compare Boulder (from 165.9c), Fimiston (from 165.9c), Victory Heights (from 165.9c), Mullingar (from 156.9c) or Karlkurla (from 156.9c) before planning a fill-up.

Brands operating here

5 fuel brands operate stations in South Boulder, including BP, Ampol, AGL, Caltex and Astron. Brand loyalty programs and discount apps can shift the cheapest pump by 4–6c/L on any given day.

Frequently asked

South Boulder fuel questions

The cheapest Unleaded 91 in South Boulder is currently at Fuel & Fly Kalgoorlie for 156.9 c/L.

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