1. Offer is not available for home heating orders.
  2. Offer valid on Thursday 18th September 2025 only.
  3. Offer is available for petrrol and diesel sales only,
  4. Corrib Oil Rewards / Loyalty Members Only.
  5. Corrib Oil Rewards / Loyalty members can avail of 20c off per litre of fuel discount from 12:01am – 11:59 pm at participating Corrib Oil Circle K sites on Thursday 18th September, 2025.
  6. Offer is not available at Corrib Oil Texaco sites
  7. Discount available on retail fuel pumps only.
  8. Offer valid on unleaded and diesel only.
  9. Vehicle fills only. No filling of fuel storage containers.
  10. Offer not valid in conjunction with a fuel card or with any other fuel offer.
  11. Corrib Oil reserves the right to end this promotion at any time without notice.
  12. Offer is available for Circle K Extra members at Corrib Oil / Circle K branded sites only.
  13. If you have a query in relation to the Circle K Extra loyalty programme please contact Circle K at https://www.circlek.ie/contact-us/circle-k-extra-support
  14. Subject to availability.