Cess on crude oil must be computed on net crude after removing water and foreign substances; limitation needs fresh examination.

Cess on crude oil under the Oil Industries (Development) Act, 1974 is chargeable on the net crude oil after removal of water and foreign substances, not on the gross quantity containing moisture and sediment. Processes undertaken solely to extract water and foreign matter, including settling or drainage before or within the refinery, do not alter that assessable basis. On limitation, the materials referred to by the appellant suggested that the department may have been aware that cess was paid on net crude oil, and the existing evidence was not fully examined. The question of suppression and the extended period therefore required fresh reconsideration.

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Issues: (i) Whether, for levy of cess on crude oil under the Oil Industries (Development) Act, 1974, the assessable quantity is the crude oil received in the refinery including moisture and sediment, or the net crude oil from which water and foreign substances have been removed. (ii) Whether the demand for the extended period could be sustained on the basis of alleged suppression, in view of the trade notice and assessment practice relied upon by the appellant.

Issue (i): Whether, for levy of cess on crude oil under the Oil Industries (Development) Act, 1974, the assessable quantity is the crude oil received in the refinery including moisture and sediment, or the net crude oil from which water and foreign substances have been removed.

Analysis: Section 2(e) defines crude oil as petroleum in its natural state before it is refined or otherwise treated, but from which water and foreign substances have been extracted. The relevant treatment therefore does not include processes undertaken only for removal of water and foreign matter. The quantity on which cess is chargeable must be determined after excluding water that has been removed by settling, drainage, or similar treatment, including at stages preceding and within the refinery, if those steps are directed only to removing moisture and sediment.

Conclusion: The assessable quantity is the net crude oil after removal of water and foreign substances, and not the gross quantity containing removable moisture and sediment.

Issue (ii): Whether the demand for the extended period could be sustained on the basis of alleged suppression, in view of the trade notice and assessment practice relied upon by the appellant.

Analysis: The record indicates that the assessment practice, trade notice, and laboratory forms referred to net crude, water content, and the quantity of crude oil delivered after test results. These materials support the appellant's contention that the department was aware that cess was being paid on net crude oil. The Commissioner had not considered the affidavit and further material later produced on this aspect, and the limitation question therefore required fresh consideration along with the parties' evidence.

Conclusion: The question of limitation and extended period could not be finally decided and had to be reconsidered afresh.

Final Conclusion: The appeal was allowed and the matter was sent back for reconsideration after the Commissioner examined the relevant evidence and applied the correct legal test on assessable quantity and limitation.

Ratio Decidendi: For cess on crude oil under the Act, the decisive quantity is the crude oil after extraction of water and foreign substances, and treatment carried out solely for that purpose does not exclude the oil from the statutory definition of crude oil.

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