Costco Gas Prices in Union Gap, Washington
Union Gap · Warehouse #1013
2310 LONGFIBRE RD, Union Gap, Washington 98903-1513
Prices updated: August 12, 2026 at 4:00 PM
Regular
$4.359
PRICE PER GALLON
Press
Premium
$4.859
PRICE PER GALLON
Press
Current gas prices at Costco #1013
This Costco gas station is located at 2310 LONGFIBRE RD in Union Gap, Washington. The latest reported fuel prices are regular at $4.359/gal, premium at $4.859/gal. Prices were last updated on August 12, 2026 at 4:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$4.359+0.260 (6.3%)
Premium
$4.859+0.300 (6.6%)
DateRegPrem
Aug 12, 4:00 PM$4.359$4.859
Aug 12, 3:00 PM$4.259$4.849
Aug 11, 4:00 PM$4.269$4.799
Aug 7, 3:00 PM$4.359$4.899
Aug 5, 2:00 PM—$4.899
Aug 5, 1:00 PM$4.359$4.899
Aug 3, 4:00 PM$4.359$4.869
Aug 2, 5:00 PM$4.359$4.899
Jul 26, 5:00 PM$4.399$4.899
Jul 24, 4:00 PM$4.299$4.759
Jul 23, 10:00 PM—$4.759
Jul 23, 9:00 PM$4.299$4.759
Jul 22, 10:00 PM—$4.759
Jul 22, 9:00 PM$4.299$4.759
Jul 22, 8:00 AM—$4.759
Jul 22, 7:00 AM$4.299$4.759
Jul 19, 4:00 PM$4.199$4.659
Jul 16, 5:00 PM$4.099$4.559