Royal Dutch Shell plc , commonly known as Shell, is a global oil and gas company headquartered in The Hague, Netherlands and with its registered office in London, United Kingdom. It is the fifth-largest company in the world according to a composite measure by Forbes magazine and one of the six oil and gas "supermajors". It is vertically integrated and is active in every area of the oil and gas industry, including exploration and production, refining, distribution and marketing, petrochemicals, power generation and trading. It also has major renewable energy activities, including in biofuels, hydrogen, solar and wind power.
The Houston Open is a regular golf tournament on the PGA Tour. It is currently played in April at Redstone Golf Club in the Houston suburb of Humble, Texas. Shell and the Houston Golf Association are the main sponsors of the tournament. The 2011 purse was $5,900,000, with $1,062,000 going to the winner.