Enerplus

Enerplus was established in 1986 by Marcel Tremblay, a pension fund manager and John Brussa, a lawyer. It was originally called Enerplus Resources Fund, and it was Canada's first income trust. Its original purpose was to provide income from mature, aging oil and gas assets to retail investors, taking advantage of the tax advantages of the income trust structure. It started trading on the Toronto Stock Exchange in 1986 with a $10 million IPO.In 1996, Mark Resources renamed itself Enermark, became an income trust, and joined the Enerplus group of companies. This was at the behest of Enerplus's then-CEO, Marcel Tremblay, in response to a hostile take-over attempt. In 2000, Enerplus merged with the Westrock Funds. In 2001, Enermark was merged into Enerplus. In 2004, it bought some of ChevronTexaco's western Canadian assets for $467 million. In 2005, Enerplus acquired American energy company Lyco Energy for $500 million, as part of an expansion strategy into the United States. Lyco held assets in South Dakota and Montana. This was the largest American acquisition by a Canadian oil and gas income trust to that time.In 2008, Enerplus acquired Focus Energy Trust for $1.4 billion in stock. Focus unit-holders ended up owning 20% of the merged entity. Focus primarily specialized in natural gas production. In 2010, Enerplus sold their Kirby oilsands leases for $400 million, as a move of the company away from the oilsands. Around the same time, the company bought several properties in the Bakken formation in North Dakota for US$456 million.

Enerplus Corporation converted from an income trust to a corporate entity on January 1, 2011, after receiving approval by 98.5% of unitholders. This was done because of changes in the taxation rules for income trusts.

In 2016, Enerplus sold its Alberta natural gas properties for $193 million.