After posting to this thread:
http://www.peakoil.com/modules.php?name=Forums&file=viewtopic&t=9819
I decided to make a little program that people can use to see how long reserves really last by calculating the consumption exponentially instead of using that stupid R/P ratio that is worth a pile of s*** :D
You can get the program here
The program is easy to use and explains itself
Here's a screenie:
If someone has any suggestions for improvements or finds any errors, then please post them here.