(ShareCast News) - AIM-listed oil and gas exploration and production group Frontera Resources noted the recent movement in its share price and confirmed that it knows no reason for the move.As announced on 19 January, the company said there is no change to the expected delivery date of March 2017 for the additional pumping equipment required to advance its six well stimulation program. "The company will keep the market appraised of the progress in this regard."At 1326 GMT, the shares were up 12% to 0.10p.