Costco Gas Prices in Saint Louis, Missouri
S St Louis · Warehouse #368
4200 RUSTY RD, Saint Louis, Missouri 63128-1973
Prices updated: September 5, 2026 at 9:00 PM
Regular
$3.759
PRICE PER GALLON
Press
Premium
$4.399
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 $3.759/gal, premium at $4.399/gal. Prices were last updated on September 5, 2026 at 9:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$3.759+0.140 (3.9%)
Premium
$4.399+0.130 (3.0%)
DateRegPrem
Sep 5, 9:00 PM$3.759$4.399
Sep 5, 6:00 PM$3.699$4.299
Aug 31, 3:00 PM$3.699$4.349
Aug 25, 10:00 PM$3.669$4.349
Aug 24, 9:00 PM$3.629$4.349
Aug 23, 3:00 PM$3.599$4.329
Aug 22, 2:00 PM$3.579$4.299
Aug 21, 8:00 PM$3.579$4.249
Aug 20, 10:00 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