On July 27, 2015, CarbonOne Technologies Inc., formerly Palo Duro Energy Inc., completed its business combination with CarbonOne Holdings Corp. and Tapango Resources Ltd. As part of the transaction, CarbonOne Holdings and Tapango closed private placements at a price of 20 cents per share for gross proceeds of $2-million. Fasken Martineau was counsel to Palo Duro throughout the transaction, with a team that included Iain Mant and Steve Saville.