Cost accounting applicability for petroleum companies depends on net worth or turnover thresholds or securities listing status. Rule 3 defines the application of the Cost Accounting Records (Petroleum Industry) Rules, 2011 to companies engaged in petroleum production, processing, manufacturing or mining that meet specified aggregate net worth or turnover thresholds in the immediately preceding financial year, or whose equity or debt securities are listed or in the process of listing on any stock exchange in India or abroad; the rules do not apply to a body corporate governed by any special Act.