Brian,
You pose an excellent question. I myself would like to pick up another load of shares. I'm not sure how many, maybe around 30,000. But I hesitate to do so right now. Sure, it looks like everything is rosy for 18 months out, but a lot can happen in that time, and I expect that the economy is going to rear its ugly head well before that time, maybe more doom and gloom and more stimulus needed. If that's the case, oil will drop a bit again (although I doubt down to $50) and we can probably expect Connacher's price to dive again.
I'm still weighing my options, but I think that if I do decide to go ahead and throw a bit more into the pot, I'd only get a third of my shares now and wait and see what happens over the winter. Worst case, if I end up paying slightly more in early 2010, at least by that point I'll have more confidence in Connacher's position and the price of oil getting closer to Algar completion.