Costco Gas Prices in Oconomowoc, Wisconsin
Oconomowoc · Warehouse #1803
1855 KIRKLAND WAY, Oconomowoc, Wisconsin 53066-4457
Prices updated: September 4, 2026 at 7:00 PM
Regular
$3.529
PRICE PER GALLON
Press
Premium
$4.589
PRICE PER GALLON
Press
Current gas prices at Costco #1803
This Costco gas station is located at 1855 KIRKLAND WAY in Oconomowoc, Wisconsin. The latest reported fuel prices are regular at $3.529/gal, premium at $4.589/gal. Prices were last updated on September 4, 2026 at 7:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$3.529−0.370 (9.5%)
Premium
$4.589−0.240 (5.0%)
DateRegPrem
Sep 4, 7:00 PM$3.529$4.589
Sep 4, 5:00 PM$3.529$4.539
Sep 3, 4:00 PM$3.529$4.529
Sep 2, 4:00 PM$3.529$4.539
Aug 31, 3:00 PM$3.539$4.539
Aug 24, 5:00 AM—$4.539
Aug 24, 4:00 AM$3.539$4.539
Aug 14, 2:00 PM$3.539—
Aug 14, 1:00 PM$3.539$4.539
Aug 12, 4:00 PM$3.549$4.549
Aug 12, 3:00 AM$3.549—
Aug 12, 2:00 AM$3.549$4.549
Aug 11, 3:00 PM$3.549$4.579
Aug 10, 6:00 PM—$4.579
Aug 10, 5:00 PM$3.549$4.579
Aug 7, 12:00 PM$3.849$4.779
Aug 6, 4:00 PM$3.899$4.829