Xstrata has declared force majeure on some coal exports after heavy rains across the state damaged parts of its rail network.
The Australian reports Xstrata has been unable to move thermal coal to Gladstone because of damage to the Blackwater rail network.
While the company's main rail operator Aurizon said the system would be up and running in six to nine days, the delays have meant Xstrata has been unable to fulfil some export quotas.
But Xstrata is not the only company suffering from the floods, with most major miners in QLD reporting delays or reduced production because of the weather.
According to The Australian Anglo American has been forced to stop mining in some areas, and a burst levee at Yancoal's Middlemount mine has flooded the pit and caused at least three weeks of cut production.
Wesfarmers has also cut its forecast for coking coal sales, and output at Evolution Mining's Mt Rawdon gold operation has also been disrupted.
Despite the wide ranging impact of the weather, the rains are not expected to cause the same damage they did in the storms of 2011 or 2008.
The last force majeure declaration in QLD coal was made last year by BMA, after industrial action and heavy rain meant it could not deliver on contracts across six Bowen Basin mines.