Waterdog, try a message board for RNE. It's pretty good for investors interested in Russia/Central Europe markets.
TRF is the oldest US fund investing in Russia. I never had a stake it it so I can't really comment about it.
I have 600 MTL shares. Very happy with it. I'll buy more if the stock goes under $30. They have a nice div of about $1.5, paid annually. You have to get in before the end of May if you are interested in it.
I sold my holdings in MBT at $57 after my investmet doubled. I wish I bought back in when MBT was trading at $48-49 during recent weakness...
I love COP due, in part, to it's exposure to Russia. Russia is a growth story. That gives a nice kick to COP.