A major challenge for Central Asia’s oil and natural gas industry has always been how to transport petroleum products from the landlocked region to global markets. That issue resurfaced last week (March 6) in Uzbekistan, where a delay in building a pipeline to export more gas to China helped Russia deepen its hold on the domestic energy industry. The Central Asian republic’s liquidity crunch has allowed Russia’s Lukoil to acquire local petroleum assets as well as to boost supplies of Russian gas to Uzbekistani consumers—thereby,…