Vermilion Energy Inc. (Vermilion), is engaged in the business of oil and natural gas exploitation, development, acquisition and production in Australia, Canada, France, Ireland and the Netherlands. As of December 31, 2011, Vermilion holds an average working interest of 68.5% in 395,616 (271,067 net) acres of developed land, 582 (396 net) producing natural gas wells and 319 (198 net) producing oil wells in Canada. Vermilion holds an 83.6% working interest in 193,017 acres of developed land in the Aquitaine and Paris Basins. Vermilion's Netherlands assets consist of eight onshore concessions and one offshore concession located in the northern part of the country. In October 2013, Vermilion Energy Inc, through its wholly owned subsidiary acquired Northern Petroleum Nederland B.V. In April 2014, Vermilion Energy Inc acquired Elkhorn Resources Inc.