Natural gas before the natural gas can be transported. Natural gas extracted from oil wells is called casinghead gas (whether or not truly produced up the annulus and through a casinghead outlet) or associated gas. The natural gas industry is extracting an increasing quantity of gas from challenging resource types: sour gas, tight gas, shale gas, and coalbed methane. There is some disagreement on which country has the largest proven gas reserves. Sources that consider that Russia has by far the largest proven reserves include the US CIA (47 600 km³), the US Energy Information Administration (47 800 km³), and OPEC (48
Phoenix Natural Gas announced the first stage of the privatisation of Northern Ireland Electricity, the province's monopolistic utility company; A major part of this was the sale of Ballylumford power station in Northern Ireland to British Gas for £132 million. This oil-fired power plant provided more than half of the power needs of the 600,000 customers in Northern Ireland. British Gas simultaneously announced its plans to set up Premier Transco to build and operate the Scotland-Northern Ireland pipeline (SNIP), a natural gas pipeline, to convert Ballylumford to natural gas, and to set up a commercial supply company for natural gas (what would become