Determination of gross income.
Section 20
SEC. 20. Determination of gross income. — The gross income shall consist of: In respect of crude oil exported, the gross proceeds from the sale of crude oil at the posted price; In respect of crude oil sold for consumption in the Philippines, the gross income shall consist of the gross proceeds from the sale thereof at market price per barrel; In respect of natural gas and/or casinghead petroleum exported or sold for consumption in the Philippines the gross income shall consist of the total quantity sold at the prevailing market price thereof; and Such other income which are incidental to and/or arising from any petroleum operation.