China’s coal miners and natural gas producers ramped up output last month at their fastest pace in months to meet surging winter heating demand as utilities and households scrambled for supplies amid a fuel supply crisis, data showed on Thursday.  Producers pumped 12.6 billion cubic meters (bcm) of gas in November, up from 12.4 bcm a month earlier and the highest monthly total since March, according to data from the National Statistics Bureau (NBS). That likely marks a peak for monthly production with no new projects coming on stream and little room in existing operations to boost supplies further, analysts and experts said. Major gas fields such as PetroChina’s Yanchang and Changqing have been running at full capacity […]