Hello, everyone!

I'm sorry that the subject doesn't have much to do with philosophy, but I'm doing a research on films which deal with various issues of the oil industry. I'm looking for titles centered around the petrol sector, for example:

'There will be blood' (2007)
'Syriana' (2005)
'Sibiriada' (1979) - though I'm still about to see this one
'Tulsa' (1949)
'Black gold' (1939)...

So, I was wondering if anyone could come up with other - preferably, more classical cinema - films on the issue. Would greatly appreciate any help! Thank you so much in advance!

Kind regards,
Marina Uzunova