By Philip Blenkinsop and Kate Abnett BRUSSELS (Reuters) – European Union country leaders may support plans to launch a new gas price benchmark at a meeting next week, as they seek to curb energy prices for consumers and industries, a draft document showed. The leaders are set to meet on Oct. 20-21, days after the European Commission intends to propose measures to tackle an energy crisis that is driving inflation and damaging economies across the bloc. A draft of their meeting conclusions, seen by Reuters, said EU leaders would agree to “develop a new benchmark that more accurately reflects con…