ATHENS (Reuters) – Greece and four other EU countries on Thursday made a joint request to the European Commission to explore two options to cap soaring gas prices and propose possible solutions in a bid to tame surging energy costs, the Greek energy ministry said. The European Union will unveil proposals next week to launch joint gas buying within months and develop an alternative gas price benchmark, but a meeting of EU countries on Wednesday left it unresolved whether the package would include a gas price cap. In letter addressed to the European Union’s executive arm on Thursday, the energy …