Cities where you can find Esso branches
- M'Chigeeng (1)
- Mabou (1)
- Magog (1)
- Malakwa (1)
- Manitou (1)
- Manitouwadge (1)
- Manitowaning (1)
- Maniwaki (1)
- Manning Park (1)
- Manseau (1)
- Mansfield (1)
- Maple Creek (1)
- Maple Ridge (3)
- Maple (3)
- Marathon (1)
- Marion Bridge (1)
- Markham (10)
- Mascouche (1)
- Maskinonge (1)
- Matagami (1)
- Matane (2)
- Matheson (1)
- Mayerthorpe (1)
- McKerrow (1)
- Medicine Hat (1)
- Melbourne (1)
- Melita (1)
- Memramcook (1)
- Merritt (1)
- Merville (1)
- Métabetchouan-Lac-à-la-Croix (1)
- Middle Musquodoboit (1)
- Midland (2)
- Milestone (1)
- Milford Station (1)
- Millarville (1)
- Millerton (1)
- Millgrove (1)
- Milton (5)
- Mindemoya (1)
- Mirabel (2)
- Miramichi (1)
- Mission (3)
- Mississauga (26)
- Mistissini (1)
- Moisie (1)
- Moncton (5)
- Monkland (1)
- Mont-Laurier (2)
- Mont-Royal (1)
- Mont-Saint-Hilaire (2)
- Mont-Tremblant (1)
- Montague (1)
- Montcerf-Lytton (1)
- Montmagny (1)
- Montréal-Nord (2)
- Montréal (25)
- Moose Jaw (4)
- Moosonee (1)
- Morden (1)
- Morin-Heights (1)
- Mount Elgin (1)
- Mount Pearl (1)
- Mount Uniacke (1)
- Mundare (1)
- Murray River (1)
- Muskoday (1)