For your initial sign-in you must know your customer number.
If you have any questions regarding sign up or using our online portal, please contact us at 1.888.DUNCAN.OIL.
Please note: a service charge of 2.75% will be applied to all credit card purchases to cover the increased cost of credit card acceptance. Payments made with cash or directly from your bank account (ex., ACH) will not be surcharged. Thank you for your business!
Session Timeout
Attention: Your session has been expired. Please click "Ok" button to login again.
Session Timeout Warning
Attention: Your session will expire in .
Do you want to logout or extend your session?