It established branches in Clonmel, Cork, Foynes, Limerick, Newcastle West and Waterford.

In late 2010, Top Oil's 6 separate sites were finally opened along the Galway motorway, which are all in alliance with Applegreen.

From 1998 to 2004, the company operated a convenience store chain on a franchise basis with ADM Londis.

In 2018, Top Oil works in partnership with a number of retailers across their network including SPAR, Mace and Daybreak.

Top Oil's main competition comes from Maxol, Certa, Texaco and Circle K. This article about a natural gas or petroleum-related company is a stub.