Costco Gas Prices in Simi Valley, California
Simi Valley · Warehouse #128
2660 PARK CENTER DR, Simi Valley, California 93065-6207
Prices updated: August 13, 2026 at 11:00 AM
Regular
$5.059
PRICE PER GALLON
Press
Premium
$5.399
PRICE PER GALLON
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Diesel
$6.459
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 $5.059/gal, premium at $5.399/gal, diesel at $6.459/gal. Prices were last updated on August 13, 2026 at 11:00 AM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$5.059+0.260 (5.4%)
Premium
$5.399+0.240 (4.7%)
Diesel
$6.459+0.560 (9.5%)
DateRegPremDiesel
Aug 13, 11:00 AM$5.059$5.399$6.459
Aug 12, 10:00 PM$5.059$5.399$6.559
Aug 12, 3:00 PM$5.059$5.399$6.459
Aug 11, 10:00 PM$5.059$5.399$6.559
Aug 11, 5:00 PM$5.159$5.499$6.559
Aug 10, 9:00 PM$5.159$5.499$6.659
Aug 10, 7:00 PM$5.159$5.599$6.659
Aug 9, 6:00 PM$5.259$5.559$6.659
Aug 5, 8:00 PM$5.259$5.559$6.599
Aug 5, 3:00 PM$5.279$5.559$6.699
Aug 4, 4:00 PM$5.199$5.499$6.699
Aug 2, 8:00 PM—$5.499—
Aug 2, 7:00 PM$5.199$5.499$6.699
Aug 2, 6:00 PM$5.249$5.549$6.699
Aug 1, 6:00 PM$5.299$5.599$6.699
Jul 31, 4:00 PM$5.299$5.599$6.659
Jul 29, 4:00 PM$5.199$5.499$6.599
Jul 26, 3:00 PM—$5.499—
Jul 26, 2:00 PM$5.199$5.499$6.599
Jul 22, 4:00 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