The UK-based BG Group, Oil and Natural Gas Corporation (ONGC) and Reliance Industries (RIL) will begin marketing of natural gas produced from the Panna/Mukta and Tapti fields in the Mumbai offshore from tomorrow.Gail (India), which till today was marketing the entire 10.8 metric million standard cubic meter per day (MMSCMD) gas produced from the fields, will now get only 6 MMSCMD for sale to power and fertiliser units on the Hazira-Bijaipur-Jagdishpur (HBJ) pipeline."Gail will have to pay market price for the gas it will buy from the joint operators BG-ONGC-RIL," an official of the consortium said, adding the market price has been pegged at the re-gassified LNG price of $3.86 per million british thermal unit (MBTU).GAIL currently pays a capped price of $3.11 dollars per MBTU.Sources said the combine will sell 4.8 MMSCMD of gas mostly to their affiliate companies at a price of $4.08 dollars per MBTU.Gujarat State Petroleum Corporation will buy 1 MMSCMD from the joint operators. Gujarat Gas, a BG affiliate firm, will take 0.7 MMSCMD . The remaining 2 MMSCMD would be consumed by Reliance and its affiliate IPCL.