If you need to top-up your vehicle's gas tank today, it will cost you more! Its no real surprise that prices are up at South Shore pumps. (They increased in New Brunswick as well a day earlier by similar amounts.) Regular self serve increased almost two cents overnight here. Its selling this morning at South Shore gas stations for $1.36.5 per litre. High test gasoline is also higher by a similar amount. Diesel is up by two cents as well. In case you're wondering "why", the world price of oil has been creeping up in recent days and costing more for refiners. Yesterday alone, oil gained $1.18 to stand at $105.03 (US) per barrel. Analysts predict the trend will likely continue for a few days.