Another source from Hong Kong added that oil terminals have prohibited bunker barges from loading bunker fuel at marine terminals.
"However, we can still do bunkering for vessels in inner South Lamma Anchorage (SLA) area where it is more sheltered until the [bunker] fuel on our barges run out," he said.
At noon, super typhoon Megi was estimated to be about 440 km southeast of Hong Kong (near 19.7 degrees north 117.4 degrees east), according to HKO.
HKO added that super typhoon Megi is forecast to move north at about eight km per hour across the northern part of the South China Sea, gradually edging closer to the coast of eastern Guangdong.
Bunker traders expect weather to ease and bunkering operations in Hong Kong to resume around Saturday.
HKO, meanwhile, have advised the public to stay away from the shoreline.
In addition, "small craft owners should now complete arrangements for the safety of their boats," it said.