The Maxol Group is an Irish oil company which serves all of Ireland, It was founded in 1920 and is part of McMullan Bros.

In 2000, Maxol acquired Northern Ireland's leading heating oil distributor, Connors Fuels Ltd..

[6] In 2011, Maxol Direct home heating oil was sold to DCC Energy, which also owns Emo.

That same year, they stopped producing the alternative e85, a type of biofuel made from whey in cheese processing for FFV (Flex Fuel Vehicle).

The Irish petrol station convenience stores began to rebrand around 2017 to use its own name and brands (Rosa Coffee and Maxol Deli) under a deal with BWG Foods, the Northern Irish petrol stations still use Spar and its brands (Daily Deli, Subway franchises and Barista Bar) as its own franchises for shops due to having a contract with NI Spar holder Henderson Foodservice.