Then there is Halliburton, which was contracted to cement the production liner in the well casing, effectively sealing off the reservoir from the well bore.

FORBES

Halliburton ( HAL - news - people ), which was contracted to cement the production liner in the well casing, effectively sealing off the reservoir from the well bore.

FORBES: The Gulf Oil Leak

With no need to pay dividends (state firms do not have to make any transfers to central government) and little shareholder pressure to ensure that their investment is cost-effective, Chinese firms went on a capital-spending binge, concentrated in industries such as aluminium, steel, car production and cement.

ECONOMIST: The frugal giant

Another equipment manufacturer, Sinoma, acquired a 40 percent global share in the cement equipment market by helping developing countries to build their cement-production capability.

FORBES: The Globalization Of China's Corporate Brands

On his private jet, the Nigerian billionaire Aliko Dangote - whose business empire includes production of cement, flour and sugar - explained why he is involved in an initiative to double immunisation efforts in his home state, Kano.

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For all the attention given to technologies like horizontal drilling and hydraulic fracturing, some of the greatest gains to be made in reducing the environmental risks of natural-gas production come from simple things like the proper pouring of cement well casings and the proper handling of chemicals and wastewater, so that they do not spill or seep into streams or water supplies.

WSJ: Is Natural Gas the Road to a Clean Energy Future?

But in a consultation paper published alongside the Bill, Mr Davey said energy-intensive industries, such as steel and cement producers, would be exempt from additional costs arising from measures to encourage investment in new low-carbon production.

BBC: Energy Bill to create 'low carbon economy', says Davey