As an example of what you could be dealing with, here are West African scammers that has been identified as doing oil scams from Russia:
Richard Addo and Stanley Uzeh
Mbega Steven Etienne, sentenced to 5 years in prison in Russia
Nelson Adesina Tosin and Olajumoke Mayaki
Alain Blaise Atah Tcheguie
Mbah Eugene Awah
Chukwunagorom Richard Chijioke
Dereak Graf Mela
Ilori Evans Johnson
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We understand that there may be some interest on your side in importing our product. For this reason we are at your service.
We believe that we can offer you the best competitive price for your market.
We are prepared to meet the particular demands of your business.
If you are interested, attached is our SCO, including prices and terms of delivery.
We would be very interested to hear from you, whether there is any possibility of business between us.
OOO Sibavto limited Company