Whiting Petroleum stockholders have approved the acquisition of Kodiak Oil & Gas.
Around 78.5% of Whiting common stock voted for the issuance of common stock to acquire Kodiak.
The Delaware-based company said 98.8% of outstanding shares also voted in favour.
The shareholders and security holders of Kodiak also approved proposals related to the transaction during a separate meeting.
James Volker, president and chief executive, said: “We are pleased with the outcome of the special meetings, and I thank Whiting stockholders for their strong support.
“The board firmly believes that the combination of Whiting and Kodiak is in the best interests of both companies and our respective stakeholders, and we look forward to completing the transaction expeditiously.”
Kodiak has also applied for a final order of the Supreme Court of British Columbia for approval of the Arrangement on December 4, 2014.
Whiting said it expects the Arrangement will close on December 8, assuming all conditions are met.