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S. 4222
U.S. Senate•In Senate Committee
Summary
S. 4222, the End Polluter Welfare for Enhanced Oil Recovery Act of 2026, was introduced in the Senate on Mar 26, 2026 by Sen. Jeff Merkley (D) with 5 co-sponsors. It was referred to Finance, and last saw action on Mar 26, 2026: Read twice and referred to the Committee on Finance.
Record
Text
S. 4222 has 5 co-sponsors.
s4222/introduced-in-senate.txt119 S4222 IS: End Polluter Welfare for Enhanced Oil Recovery Act of 2026U.S. Senate2026-03-26text/xmlENPursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.II 119th CONGRESS 2d Session S. 4222 IN THE SENATE OF THE UNITED STATES March 26, 2026 Mr. Merkley (for himself, Mr. Van Hollen , Mr. Markey , Mr. Booker , Mr. Sanders , and Ms. Warren ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILLTo amend the Internal Revenue Code of 1986 to provide for an end date for the credit for certain qualified carbon oxide, and for other purposes.1.Short titleThis Act may be cited as the End Polluter Welfare for Enhanced Oil Recovery Act of 2026 .2.Elimination of use of carbon oxide as tertiary injectant(a)In generalSection 45Q(f) of the Internal Revenue Code of 1986 is amended by adding at the end the following new paragraph:(11)Elimination of use of carbon oxide as tertiary injectantIn the case of any qualified facility the construction of which begins after the date of the enactment of the End Polluter Welfare for Enhanced Oil Recovery Act of 2026 , subsection (a)(3)(B)(ii) shall not apply..(b)Effective dateThe amendments made by this section shall apply to taxable years beginning after the date of the enactment of this Act.3.Enhanced oil recovery credit(a)In generalSubpart D of part IV of subchapter A of chapter 1 of the Internal Revenue Code of 1986 is amended by striking section 43.(b)Conforming amendments(1)Section 38(b) of such Code is amended by striking paragraph (6).(2)Section 45I(b)(2)(B) of such Code is amended by inserting (as in effect on the day before the date of the enactment of the End Polluter Welfare for Enhanced Oil Recovery Act of 2026 ) after section 43(c)(3)(B) .(3)Section 45K(b)(5)(A) of such Code is amended by inserting (as in effect on the day before the date of the enactment of the End Polluter Welfare for Enhanced Oil Recovery Act of 2026 ) after section 43 .(4)Section 45Q of such Code is amended—(A)by striking section 43(b)(3)(B) each place it appears and inserting section 43(b)(3)(B) (as in effect on the day before the date of the enactment of the End Polluter Welfare for Enhanced Oil Recovery Act of 2026 ) , and(B)in subsection (e)(4), by inserting (as in effect on the day before the date of the enactment of the End Polluter Welfare for Enhanced Oil Recovery Act of 2026 ) after section 43(c)(2) .(5)Section 196(c) of such Code is amended by striking paragraph (5) and by redesignating paragraphs (6) through (14) as paragraphs (5) through (13), respectively.(6)Section 6501(m) of such Code is amended by striking 43, .(7)The table of sections for subpart D of part IV of subchapter A of chapter 1 of such Code is amended by striking the item relating to section 43.(c)Effective dateThe amendments made by this section shall apply to taxable years beginning after the date of the enactment of this Act.
Tracker
The tracker indicates the progress of this legislation as it moves through the legislative process.
- Introduced2026-03-26
- Passed Senate
- Passed House
- Conference
- To President
- Became Law
A bill to amend the Internal Revenue Code of 1986 to provide for an end date for the credit for certain qualified carbon oxide, and for other purposes.
Sponsors
Sen. Jeff Merkley (D) sponsors S. 4222, and 5 members have co-sponsored it, all of them from the day it was introduced.

Sen. · D–OR · Sponsor
Introduced Mar 26, 2026

Sen. · D–NJ · Co-sponsor
Joined Mar 26, 2026 · Original

Sen. · D–MA · Co-sponsor
Joined Mar 26, 2026 · Original

Sen. · I–VT · Co-sponsor
Joined Mar 26, 2026 · Original

Sen. · D–MD · Co-sponsor
Joined Mar 26, 2026 · Original

Sen. · D–MA · Co-sponsor
Joined Mar 26, 2026 · Original
Committees
S. 4222 went before 1 committee: Finance.
Actions
S. 4222 has taken 2 actions since Mar 26, 2026.
| Chamber | Action | |||
|---|---|---|---|---|
Mar 26, 2026 | Senate | Read twice and referred to the Committee on Finance.Finance Committee | ||
Mar 26, 2026 | — | Introduced in Senate |
Votes
S. 4222 has not gone to a roll call.
Related bills
1 bill is related to S. 4222, as Identical bill.
Titles
S. 4222 goes by 3 titles, 1 of them short titles.
- End Polluter Welfare for Enhanced Oil Recovery Act of 2026 — Display Title
- End Polluter Welfare for Enhanced Oil Recovery Act of 2026 — Short Title(s) as Introduced
- A bill to amend the Internal Revenue Code of 1986 to provide for an end date for the credit for certain qualified carbon oxide, and for other purposes. — Official Title as Introduced
Lobbying
1 client hired 1 firm and 6 registered lobbyists who named S. 4222 in 1 quarterly filing, 2025. Reported under the Lobbying Disclosure Act; a filing’s income covers everything its registrant worked that quarter, so the amounts below are the filings’, not this bill’s.
Filed under Animals, Budget/Appropriations, Clean Air and Water (quality), Energy/Nuclear, Real Estate/Land Use/Conservation, Transportation.
Clients
Who paid to be heard, by how many filings named the bill.
| Client | Business | State | Firms | Filings | Reported |
|---|---|---|---|---|---|
| NATIONAL PARKS CONSERVATION ASSOCIATION | — | District of Columbia | 1 | 1 | — |
Firms
Registrants who filed on the bill, by filings.
| Registrant | Clients | Filings | Reported |
|---|---|---|---|
| NATIONAL PARKS CONSERVATION ASSOCIATION | 1 | 1 | — |
Lobbyists
Named on the filings that cite the bill.
| Lobbyist | Firms | Clients | Filings |
|---|---|---|---|
| CHAD LORD | 1 | 1 | 1 |
| CHARLES SPEARS | 1 | 1 | 1 |
| CHRISTINA HAZARD | 1 | 1 | 1 |
| EMILY DOUCE | 1 | 1 | 1 |
| JOHN GARDER | 1 | 1 | 1 |
| KRISTEN HAJIBRAHIM | 1 | 1 | 1 |
Filings
The documents themselves, on the Senate’s Lobbying Disclosure site, largest reported first.
| Client | Registrant | Period | Reported | Document |
|---|---|---|---|---|
| NATIONAL PARKS CONSERVATION ASSOCIATION | NATIONAL PARKS CONSERVATION ASSOCIATION | 2025 first_quarter | $127.3K | 1st Quarter - Report |
Classification
The Congressional Research Service files S. 4222 under Taxation, one of its 31 policy areas.
CRS Subjects
CRS assigns every bill one policy area from its 31; S. 4222’s is Taxation.
s4222/policy-areas.txtSource: congress.gov · legiscan.com
