* Coal production suspended by tornado damage
* Electrical power still out at mine
* Co has not yet declared force majeure
* Stock drops 1.4 percent
The company's stock dropped 1.4 percent to $95.26 in midday trading on the New York Stock Exchange.
"Production has been suspended," spokeswoman Patricia Persico told Reuters, when asked about the company's Oak Grove mine.
She said electrical power had not yet been restored to the mine, some 25 miles (40 kilometers) southeast of Birmingham, Alabama, which was hit by severe weather on Wednesday evening.
Persico said Cliffs had not declared "force majeure" -- a legal term under which it might suspend contracts with customers -- but was assessing the situation to determine the next step.
On Thursday, Cliffs said violent storms and tornadoes that tore through Alabama had severely damaged some above-ground operations at Oak Grove. The storms killed more than 300 people in seven southern states in one of the deadliest swarms of twisters in U.S. history.
The company said in a news release that none of the 300-plus workers at the mine had been injured, but that the damage would affect future customer deliveries.
The Oak Grove mine extracts coal from the Blue Creek seam containing metallurgical, or coking coals, used in steelmaking. It produced between 900,000 and 1.4 million tons of coal per year over the last five years, Persico said. (Reporting by Steve James; Editing by Lisa Von Ahn, sourced Thomson Reuters)