Russia on Tuesday asserted ownership of all oil assets a state Russian company is developing in Venezuela, following the claims of U.S. President Donald Trump that major American and Western oil firms would help revive Venezuela’s oil industry. Russia’s Roszarubezhneft, a state-owned firm that took over Rosneft assets in 2020 following U.S. sanctions on Rosneft’s Venezuelan oil trade, said on Tuesday that “all assets of Roszarubezhneft in Venezuela are owned by the Russian state,” as they have been bought at…