The dispute between Ukraine's Naftogaz and Russia's Gazprom over gas supply and transit is likely to drive forward investment in key infrastructure, say experts.

Shamil Yenikeyeff, research fellow at the Oxford Institute for Energy Studies says that in order to create a stable market, European countries should invest in constructing new gas infrastructure in Europe, and new storage facilities. "Unless that happens, there will continue to be instability if there is a shortage of gas," he says.