IGL in Delhi and Mahanagar Gas Ltd in Mumbai are the only city gas companies in the country that buy government-controlled gas, also called APM (administered price mechanism) gas. The government on Wednesday increased prices of APM gas by over 100 per cent to $4.20 per million British thermal units. The APM gas price increase will come into effect once the central government notifies it. APM gas accounts for over 90 per cent of IGL's gas consumption. Apart from 2.2 million standard cubic metres of gas a day (mscmd) under APM, IGL also buys .308 mscmd of gas from Reliance Industries KG D6 block and .4 mscmd of regassified LNG.