Gas-to-liquids producer
Appears in 1 story · Last updated Sep 15, 2026
As of September 2026: Heavily damaged by Iranian airstrikes in March 2026
Costco members now pay $57.99 for a 10-quart box of Kirkland Signature full-synthetic motor oil, up from about $30 last year. The chain limits purchases to two boxes per membership every seven days — its first motor oil rationing ever.
Updated Sep 15
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