Important Changes to our Invoicing & Accounting System

Dennis Oil Company is pleased to announce that starting on April 27th, 2026 for customers serviced out of our Joplin, MO location, and starting on June 1st, 2026 for customers serviced out of our Springfield, Jefferson City, and West Plaines, MO locations, we will be transitioning to our company-wide Invoicing and Accounting system, Sage-DM2. This system is being used by all RelaDyne locations throughout the country, and is specifically designed for handling petroleum products distribution, billing, inventory and purchasing transactions.

Important Information

Name Change Info, New Remit To Address, Item Codes / Description Changes, Delivery Tickets/Invoice Process Changes

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Documents

W9, Customer Communication, Sample Delivery Ticket, Sample Invoice

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Invoice Delivery

Learn about invoice delivery methods and how to update your preferences

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