The Essay Petroleum. Essay petroleum India (P) Ltd is a company registered under company’s act 1956. And doing business under the parallel marketing system for install and operates all LPG related activities from ‘CONCEPT’ to ‘COMMISIONING’. Essay Petroleum is an ISO 9001:2000 certified company and we are rated as 3rd by marketing & development Research Association (MDRA). We are the approved License holder for operating Auto Gas Station throughout India by Govt. of India under the Ministry of petroleum and Petroleum & Explosive Safety Organization (PESO).