The demand curves for competitive firms, however, are almost perfectly elastic because no matter how these firms change their production, in a perfectly competitive economy, there are so many firms out there that its production will not affect anything.onopolistic competition, because there are so many relatively weak firms, there are no barriers to entry. Companies can enter the market relatively easily (although, of course, not as perfectly easy as in perfect competition). This makes for a long-term equilibrium competition of no profit.
How Is Natural Gas Produced. Natural gas is found in oil fields, natural-gas fields and coal beds. Since natural gas isn't a pure product, it needs to undergo processing before it can be used as consumer fuel. The gas is extracted from a field using a decompression process called retrograde condensation.
Natural gas is found in coal seams hundreds of metres beneath the earth's surface. Just like conventional natural gas, coal seam gas (CSG) is comprised mostly of methane (CH 4) and is a type of petroleum that was formed from the compressed remains of plants over millions of years.atural gas from coal seams forms part of the gas supply piped into more than one million homes and businesses in NSW for use in everyday cooking, heating and manufacturing. In fact over 30% of the eastern Australian gas network is fed by coal seam gas.