As counsel for the CPIL, Rajinder Sachar and Prashant Bhushan said that the only way to disinvest in the companies would be to repeal or amend the Acts by which they were nationalized in the 1970s.

[9] On 19 July 2017, the Government of India announced the acquisition of HPCL by the Oil and Natural Gas Corporation (ONGC).

[14] HPCL also owns and operates the largest lubricant refinery in India, with a capacity of 335,000 metric tons, producing lube base oils.

The marketing network of HPCL consists of 19 zonal offices in major cities and 145 regional offices[15] facilitated by a supply and distribution infrastructure comprising terminals, aviation service facilities, liquefied petroleum gas bottling plants and distributors, lube filling plants and distributors, inland relay depots, and retail outlets (petrol pumps).

Hindustan Petroleum Gas HPCL is focused on the appraisal and development of hydrocarbon accumulations in onshore and offshore projects.