Title 26 › Subtitle Subtitle A— Income Taxes › Chapter 1— NORMAL TAXES AND SURTAXES › Subchapter A— Determination of Tax Liability › Part IV— CREDITS AGAINST TAX › Subpart D— Business Related Credits › § 45I
Producers of oil or natural gas from low-output "marginal" wells can claim a tax credit of $3 per barrel of crude oil and 50 cents per 1,000 cubic feet of natural gas. The credit shrinks, and can fall to zero, when market prices are high: it phases out as the reference price rises above $15 for oil ($1.67 for gas), and those dollar amounts are adjusted for inflation for years after 2005. A qualified marginal well is a domestic well with marginal production status, or one producing no more than 25 barrel-of-oil equivalents a day with water making up at least 95 percent of what comes out. The credit covers only the first 1,095 barrels or equivalents from a well each year, reduced for short years or days the well cannot produce. Only holders of an operating interest can claim it, owners share it based on their revenue interests, and you cannot claim it for a well if you also claim the section 45K fuel credit for that well.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 45I
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73