increase rent based on oil prices

[Kenneth LaVoie]

I've heard alot about having verbiage in rental agreements / leases that allow you to increase rent based on oil prices crossing a pre determined threshold. My lawyer just emailed back and said it was pretty straight forward but didn't offer any idea or examples. Has anyone here had such experience? (I'm already aware of having tenant paid utilities whenever possible, this is for those times when it's impossible). thanks much!