Utilize the input text as a context reference, choose the right relationship between Linn Energy and Petroleum from the options. Options: 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.

** Biggest gainers include: Basic Energy Services Inc (NYSE: BAS - news ) up 16 pct at $3.99, Midstates Petroleum Company Inc (NYSE: MPO - news ) up 20 pct at $2.16, Whiting Petroleum Corp (NYSE: WLL - news ) up 14.5 pct at $2.53, Seventy Seven Energy Inc (NYSE: SSE - news ) up 15.2 pct at $2.54, Linn Energy LLC up 19 pct at $2.52

Answer: product_or_material_produced