Russia’s energy infrastructure has taken a hammering after a string of explosions knocked out three major oil and gas pipelines within a 24-hour period. Ukrainian military intelligence sources confirmed that the Kuibyshev-Lysychansk pipeline in Saratov Oblast—capable of moving 82 million tons of oil annually—was crippled in the early hours of September 8. The line had been supplying petroleum products directly to Russian military units. The Saratov strike followed blasts in Penza Oblast just hours earlier, where at least four…