Essar took to twitter to inform about starting off gas supply to state-owned GAIL India. Ruia family-owned Essar inked a 15-year contract in August to supply all of its coal bed methane (CBM) production from Raniganj East block to GAIL. The Raniganj East block is predicted to reach peak coal bed methane (CBM) production of 2.3 million standard cubic metres per day.