Lack of capex in oil/gas in Russia?

AFAIK Russia has a lack of professional service expertise for extraction in diffiult areas (i.e. Siberia). I read how companies like Haliburton have pulled out of Russia post-invasion, and so in a couple of years Russia will have a problem accessing their own supply. I doubt that will remain a problem for long.

Fred Koch - founder of Koch industries, made his fortune building FCCs for Stalin's USSR in the late 1920s and 1930s. Why? Because of patent-lawsuits in the US he couldn't do the same work in the US. Don't get me wrong. I don't begrudge Koch doing this work. What he did was clever, innovative and legal.

Similarly, I expect some 2020s-version of Fred Koch will take their expertise to Putin's Russia and make a fortune on extraction. However, legally the world is very different than 100 years ago. Whomever goes over there may find it more difficult to return to the US with the funds.