CHISINAU (Reuters) -Moldova’s state energy firm will pay the rest of a late advance payment to Russia’s Gazprom for September natural gas supplies on Friday so the gas giant does not cut supplies from Oct. 1, a source said on Thursday. Moldovagaz paid $6 million to Gazprom on Thursday and will pay more than $24 million on Friday to close the late advance payment of $33.89 million that was due to be paid by Sept. 20 to cover 50% of gas consumed in September, the source told Reuters. The remaining 50% is due to be paid for by Nov. 20. One of Europe’s poorest countries, Moldova is reliant on Russ…