For Inverness area, Highland are usually cheaper but be careful about them. I've been checking prices for a couple of days with Highland and CPL (would have checked Gleaner but they have yet to answer the phone!). On Friday: Highland and CPL both 51p On Monday, after a snowy weekend: CPL - 52p Highland - 58p Despite their previous good record, Highland seem to be taking advantage of the cold snap to push up prices, and I will be checking them very carefully in future. If I'd gone with them I'd have paid an extra 50 quid for nothing. Please always phone around before buying oil.