Plans to extract methane gas in Stoke-on-Trent have the support of local businesses. Tony Cotton, Head of Manufacturing at Johnson Tiles, believes methane extraction will help reduce costs and improve gas supply.
Critics of the plans say drilling will increase the risks of water contamination and methane leaks.
Businesses and unions are calling for government intervention to protect industries from gas shortages.
The British Chamber of Commerce, the TUC and the British Ceramic Confederation are claiming that gas shortages are harming jobs and investment.
Dr Adam Marshall, British Chamber of Commerce, said: "Large-scale investment in plant is often dependent on stability and having confidence in the future. How can these industries be expected to create jobs and wealth if there are serious concerns about the fuel on which they depend?"