Costco Gas Prices in Simi Valley, California
Simi Valley · Warehouse #128
2660 PARK CENTER DR, Simi Valley, California 93065-6207
Prices updated: July 22, 2026 at 2:00 PM
Regular
$5.159
PRICE PER GALLON
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Premium
$5.499
PRICE PER GALLON
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Diesel
$6.599
PRICE PER GALLON
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Current gas prices at Costco #128
This Costco gas station is located at 2660 PARK CENTER DR in Simi Valley, California. The latest reported fuel prices are regular at $5.159/gal, premium at $5.499/gal, diesel at $6.599/gal. Prices were last updated on July 22, 2026 at 2:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$5.159+0.360 (7.5%)
Premium
$5.499+0.400 (7.8%)
Diesel
$6.599+0.400 (6.5%)
DateRegPremDiesel
Jul 22, 2:00 PM$5.159$5.499$6.599
Jul 21, 10:00 PM$5.099$5.499$6.599
Jul 21, 4:00 PM$5.099$5.499$6.499
Jul 20, 11:00 PM$4.999$5.359$6.359
Jul 20, 5:00 PM$4.999$5.299$6.299
Jul 17, 10:00 PM$4.959$5.259$6.199
Jul 17, 5:00 PM$4.959$5.259$6.099
Jul 15, 2:00 PM$4.859$5.159$5.999
Jul 14, 8:00 PM$4.759$5.159$5.899
Jul 14, 5:00 PM$4.799$5.159$5.899
Jul 13, 11:00 PM$4.799$5.259$5.899
Jul 12, 5:00 PM$4.899$5.259$5.799
Jul 11, 5:00 PM$4.959$5.259$5.799
Jul 10, 5:00 PM$4.999$5.299$5.799
Jul 9, 10:00 PM$4.959$5.259$5.799
Jul 8, 8:00 PM$4.899$5.199$5.799
Jul 8, 4:00 PM$4.859$5.159$5.799
Jul 7, 11:00 PM$4.799$5.099$5.799
Jul 5, 6:00 PM$4.899$5.199$5.799
Jul 4, 8:00 PM$4.799$5.099$5.799
Jul 3, 4:00 PM$4.699$5.059$5.799
Jul 2, 5:00 PM$4.759$5.059$5.999
Jun 28, 4:00 PM$4.779$5.079$5.999
Jun 26, 10:00 PM$4.799$5.099$6.099
Jun 26, 3:00 PM$4.799$5.099$6.159
Jun 25, 10:00 PM$4.779$5.079$6.159
Jun 25, 4:00 PM$4.779$5.099$6.159
Jun 23, 10:00 PM$4.779$5.099$6.199
Jun 23, 4:00 PM$4.799$5.099$6.199