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April 2008

Oil and gas exploration and development costs

By Himanshu V. Kishnadwala, Chartered Accountant
Reading Time 3 mins

New Page 1ESSAR OIL LTD. — (31-3-2007)

6. Oil and gas exploration and development costs

The Company follows the ‘Full Cost Method’ of accounting for its oil and gas exploration and development activities, whereby all costs associated with acquisition, exploration and development of oil and gas reserves, are capitalised under capital work-in-progress, irrespective of success or failure of specific parts of the overall exploration activity within or outside a cost centre (known as ‘cost pool’). Exploration and survey costs incurred are held outside cost pools until the existence or otherwise of commercial reserves are determined. These costs remain undepleted pending determination, subject to there being no evidence of impairment. Costs are released to its cost pool upon determination or otherwise of reserves. When any field in a cost pool is ready to commence commercial production, the accumulated costs in that cost pool are transferred from capital work-in-progress to the gross block of assets under producing properties. Subsequent exploration expenditure in that cost pool will be added to gross block of assets, either on commencement of commercial production from a field discovery or failure. In case a block is surrendered, the accumulated exploration expenditure pertaining to such block is transferred to the gross block of assets. Expenditure carried within each cost pool (including future development cost) will be depleted on a unit-of-production basis with reference to quantities, with depletion computed on the basis of the ratio that oil and gas production bears to the balance proved and probable reserves at commencement of the year. The financial statements of the Company reflect its share of assets, liabilities, income and expenditure of the joint-venture operations, which are accounted on the basis of available information on line-to-line basis, with similar items in the Company’s financial statements to the extent of the participating interest of the Company as per the various joint-venture agreement(s).

Revenue recognition :

Revenue on sale of goods is recognised when the property in the goods is transferred to buyer for a price, or when all significant risks and rewards of ownership have been transferred to the buyer and no effective control is retained by the Company in respect of the goods transferred to a degree usually associated with ownership and no significant uncertainty exists regarding the amount of consideration that will be derived from the sale of goods.

Revenue on transactions of rendering services is recognised, either under the completed service contract method or under the proportionate completion method, as appropriate. Performance is regarded as achieved when no significant uncertainty exists regarding the amount of consideration that will be derived from rendering the services.

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