You could always use mine! It shows discovery, production and demand in a single 3D representation. I think showing discovery along with the other two really drives home the fact that it is not realistic to think we are going to find large amounts of additional conventional reserves.
Larger Version Here
The historical discovery data is from Exxon Mobil and the production and demand history are from BP's Statistical Review (2005). The Exxon data is 2002, so I used pup55's running discovery total to fill in the gap (thx pup!). The projections for discovery and production were done by me using the Hubbert linearization technique and the demand projection is based on the EIA's estimate of 1.9% growth out to 2025.