Well, its all relative. Saras had a knockout year in 2009. This could have been because right at the start of 2009 oil prices were very low, so they could have been buying unrefined fuel cheap early in the year and then benefitting from higher prices later in the year.
The bottom line is that Saras can refine something like 110m barrels of gas per year, and currently (the last 6 months) has made $1 per barrel of refined gas. So that clearly is atleast $110m of profit yearly. If they can increase their margins, either by lowering input costs, or increase sales through charging higher prices things look significantly better. They make about $5 billion in revenue yearly, and its not asking too much for a company to make a margin of say 5%, which would equal $250m per year.
Profitability fluctuates obviously, but things don't get much worse than they are currently for refiners because: high input prices, stagnant output prices. Crude is quite expensive, but the demand for gas is lower than the last few years.
In terms of long term outlook, though, the sector is very stable, and esp. in good times, profitable.