A top Russian oil executive was killed after falling from a window in a Moscow tower block. His demise is just the latest in a string of high-profile and unexplained deaths among senior executives in Russia's energy sector. Andrey Badalov, 62, was confirmed dead after falling from his penthouse on Rublyovskoye Highway. He was the vice-president of Transneft - Russia's state oil pipeline operator and the largest such company in the world. The company transports 82% of the oil produced in the country through its pipelines. -snip- Transneft confirmed Badalov’s death but did not comment on the circumstances. The company...