(Bloomberg) — Oil posted a monthly gain of 11% on signs that consumption is outpacing supply and draining stockpiles.Most Read from BloombergFutures in New York rose 0.9% on Friday. Oil’s advance this month shows the impact of an ongoing shortage of natural gas, which has boosted demand for oil products. At the same time, rising margins signal that crude consumption will remain strong as refiners continue to process more to meet demand. That could mean that global oil stockpiles will continue to fall in the coming months.Meanwhile, traders continue to assess the possibility that the Organization of Petroleum Exporting Countries and its allies will increase output further. The group will meet Nov. 4 to review their plans to gradually restore some more of the production …