"My resignation relates both to the demands of my other commitments and the recognition that Foyson is now entering a new era as an emerging energy producer," he said.

"It is appropriate that IGE representatives have a stronger presence on the board."

Paul Dickson will take over Halley's position as non-executive chairman.

With more than 20 years of experience in business management across a number of areas, Dickson's appointment is consistent with Foyson's strategic direction and with the completion of the IGE transaction.