In a full production scenario, a single rig could drill 30+ wells a year...the reason is that at that point they already know exactly how to drill the rock so the rigs goes in, does exactly what it's supposed to, then moves along to the next site. Drilling 300-500 wells a year isn't unheard of.
It'll all depend on what Talisman wants to do and based on capital spending and where they want to focus!