GAIL is currently participating in 26 exploration blocks, in Basins such as Mahanadi, Mumbai, Cambay, Assam-Arakan, Tripura Fold Belt, Krishna Godavari, Cauvery and Cauvery Palar. GAIL has partnership in these blocks with various companies such as ONGCL, GSPCL, Hardy Exploration & Production, Petrogas, JOGPL, Eni, Oilex and Daewoo as Operators. Out of these 26 E&P, 2 blocks are overseas (A-1 and A-3 blocks in Myanmar).

GAIL is participating in one CBM block awarded to the consortium under CBM-III bidding round. Arrow Energy is the Operator of the CBM block.

GAIL is a member of National Gas Hydrate Programme being coordinated by DGH and is actively involved in activities related to Gas Hydrate exploration.