There shall be the following classes of Members of the Society:

1. Corporate Members
2. Associate Members 
3. Ordinary Members
4. Honorary Members

CORPORATE MEMBERS
Any Corporate body in the Petroleum Industry incorporated in India with weighted average of NFA and turnover of Rs. 50 crores and above would qualify to become a Corporate Member of the Society.
There shall be three categories of Corporate members.

GROUP A: Oil Companies having weighted average of NFA and turnover of over Rs. 1000 crores.
GROUP B: Oil Companies having weighted average of NFA and turnover of Rs. 500 crores to Rs. 1000 crores.
GROUP C: Oil Companies having weighted average of NFA and turnover of Rs. 50 crores to less than 500 crores.

Note:

The determination of the GROUP of a Corporate member in a year will be based on 50% weightage for NFA and 50% weightage for turnover of the previous year as per last audited balance sheet.

"Net Fixed Assets (NFA)" shall mean Gross Fixed Assets less Depreciation plus Gross Producing Property less Depletion, If any, in India.

"Turnover" means Gross Sales / Income in the last financial year.

"Petroleum Industry" shall be deemed to include and refer to all the entities engaged in activities relating to Exploration & Production of hydrocarbons, Refining, Natural Gas, Natural Gas & Petroleum Pipelines and Terminalling, Trading, Marketing and Distribution of all hydrocarbon products and including related service providers.

"Hydrocarbon" shall mean crude oil, petroleum products, LPG, Natural Gas or any of its variants.

ASSOCIATE MEMBERS
All India registered Associations of Industry, Trade, Commerce, Transporters etc., either dealing and/or connected with hydrocarbon products or its users and any other Associations which the Governing Council may decide may be made Associate Members. 

ORDINARY MEMBERS
Any Corporate body in the Petroleum Industry with weighted average of NFA and turnover of less than Rs. 50 crores and any individual/organisation would qualify to become a Ordinary Members of the Society. The Organisations like bulk users, major equipment manufacturers and suppliers etc. interested in the Aims and Objectives of the Society may subject to the decision of the Governing Council, can also be admitted as ordinary Members. A foreign corporate body may also become an Ordinary Member of the Society.

HONORARY MEMBERS
Persons both Indian and foreign nationals of eminence connected to the petroleum industry including related research institutions may be taken as Honorary Members. However Honorary Members shall not be persons holding Public office. The Governing Council may induct Honorary Members for a period of three years and they shall be eligible for reco-option for one additional term. Honorary Members shall have a right to resign. 

ADMISSION OF MEMBERS
The procedure and guidelines for the enrolment of membership including the number of members will be decided by the Governing Council from time to time. The Governing Council shall be exclusively entitled to admit members.

ENTRANCE FEE & ANNUAL SUBSCRIPTION
The entrance fee and Annual Subscription for the various categories of members shall be as under :