Gastar revealed on Thursday it had resumed productionat a reduced rate of about 50 million cubic feet of gas per day from theMarcellus shale formation, about 19% down from the average daily output inMarch.

It added output was being flowed to alarger pipeline Williams operates to the south of its acreage.

The pipeline rupture occurred on Saturdaywith the explosion sparking a small fire on the 12-inch pipeline, with earlyindications that a "hillside slip" or a small landslide caused therupture.

Gastar