Costco Gas Prices in Saint Louis, Missouri
S St Louis · Warehouse #368
4200 RUSTY RD, Saint Louis, Missouri 63128-1973
Prices updated: August 16, 2026 at 6:00 PM
Regular
$3.549
PRICE PER GALLON
Press
Premium
$4.199
PRICE PER GALLON
Press
Current gas prices at Costco #368
This Costco gas station is located at 4200 RUSTY RD in Saint Louis, Missouri. The latest reported fuel prices are regular at $3.549/gal, premium at $4.199/gal. Prices were last updated on August 16, 2026 at 6:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$3.549+0.090 (2.6%)
Premium
$4.199+0.100 (2.4%)
DateRegPrem
Aug 16, 6:00 PM$3.549$4.199
Aug 16, 5:00 PM$3.549$4.179
Aug 14, 9:00 PM$3.539$4.179
Aug 14, 3:00 PM$3.529$4.129
Aug 13, 10:00 PM$3.479$4.129
Aug 12, 3:00 PM$3.479$4.179
Aug 8, 4:00 PM$3.549$4.199
Aug 7, 10:00 PM$3.569$4.229
Aug 7, 3:00 PM$3.619$4.269
Aug 6, 3:00 PM$3.689$4.339
Aug 5, 3:00 PM$3.699$4.349
Aug 3, 4:00 PM$3.789$4.439
Aug 2, 4:00 PM$3.799$4.449
Jul 29, 2:00 PM$3.789$4.439
Jul 27, 4:00 PM$3.849$4.499
Jul 25, 4:00 PM—$4.499
Jul 25, 3:00 PM$3.849$4.499
Jul 25, 2:00 PM$3.849$4.479
Jul 24, 9:00 PM$3.799$4.389
Jul 24, 2:00 PM$3.749$4.299
Jul 23, 9:00 PM$3.699$4.299
Jul 23, 3:00 PM$3.659$4.299
Jul 22, 9:00 PM$3.649$4.249
Jul 22, 3:00 PM$3.589$4.199
Jul 22, 9:00 AM—$4.199
Jul 22, 8:00 AM$3.589$4.199
Jul 21, 3:00 PM$3.559$4.199
Jul 19, 3:00 PM$3.499$4.149
Jul 18, 2:00 PM$3.459$4.099
Jul 17, 8:00 PM—$4.099
Jul 17, 7:00 PM$3.459$4.099