Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Companies including Cenovus Energy Inc, Suncor Energy Inc, Canada Oil Sands Ltd, Crescent Point Energy Corp, Canada Natural Resources Ltd and Husky Energy Inc will be taking part in panel discussions and giving investment presentations.

Answer: product_or_material_produced: Husky Energy, Oil