دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: see upper tier.

n: a category of oil production for purposes of price control. Upper tier refers to oil that comes from reservoirs that began producing subsequent to 1972. It also refers to oil produced from wells having a production rate of 10 barrels (1,590 litres) per day or less for a continuous period of 12 months. Also called stripper oil.

n: a federal excise tax on crude oil. It has a different rate for oil in a number of categories, for example, newly discovered oil, stripper oil, and stripper oil produced by independents. The tax rate is determined as a percentage-for instance, at 25%---of the difference between a base price and a market price. There are a variety of exceptions and exemptions;interested parties should query the IRS or a tax accountant.