Marathon Oil Company LLC, Houston, TX. EIN 25-1410539. Annual reports 2009–2025. Also filed as Marathon Oil Company.
Marathon Oil Company LLC has no active retirement plan on file. Its last annual report was for 2025. Its Marathon Oil Company Thrift Plan was merged into Conocophillips Savings Plan in 2025.
Active plans
0
Plans on file
2
Industry
Mining, oil and gas
All 2 plans
Active plans first
Marathon Oil Company Thrift Plan
401(k)Merged
Merged. In 2025 its assets moved to the Conocophillips Savings Plan, sponsored by Conocophillips Company (EIN 73-0400345, plan 022). Accounts moved with them, so that plan is the one to contact.
Conocophillips Company Benefits Committee Po Box 4783 Houston, TX 77210 (918) 661-6199As filed for 2025
In effect since
November 1, 1953
Year by year, 2009 to 2025
Plan year
Participants
Net assets
Recordkeeper
2025
0
$0
Fidelity
2024
2,337
$923 million
Fidelity
2023
2,496
$883 million
Fidelity
2022
2,502
$835 million
Fidelity
2021
2,524
$1.1 billion
Fidelity
2020
2,814
$1.0 billion
Fidelity
2019
3,082
$970 million
Fidelity
2018
3,244
$929 million
Fidelity
2017
3,148
$1.0 billion
Fidelity
2016
3,197
$992 million
Fidelity
2015
3,556
$1.1 billion
Fidelity
2014
4,020
$1.2 billion
Fidelity
2013
4,007
$1.2 billion
Fidelity
2012
4,129
$1.2 billion
Fidelity
2011
4,460
$1.1 billion
Fidelity
2010
12,954
$2.6 billion
State Street
2009
13,134
$2.4 billion
not listed
Retirement Plan of Marathon Oil Company
Cash balance pensionMerged
Merged. In 2025 its assets moved to the Conocophillips Retirement Plan, sponsored by Conocophillips Company (EIN 73-0400345, plan 021). Accounts moved with them, so that plan is the one to contact.
Plan number
001Employer EIN 25-1410539
Participants (2024)
2,595
Net assets (2024)
$240 million
Plan administrator
Conocophillips Company Benefits Committee Po Box 4783 Houston, TX 77210 (918) 661-6199As filed for 2025
In effect since
January 1, 1936
Year by year, 2009 to 2025
Plan year
Participants
Net assets
Recordkeeper
2025
0
$0
not listed
2024
2,595
$240 million
not listed
2023
2,635
$194 million
not listed
2022
2,569
$170 million
not listed
2021
2,551
$204 million
not listed
2020
2,726
$206 million
not listed
2019
3,133
$247 million
not listed
2018
3,233
$219 million
not listed
2017
3,191
$247 million
not listed
2016
3,325
$238 million
not listed
2015
3,822
$341 million
not listed
2014
4,227
$587 million
not listed
2013
4,172
$662 million
not listed
2012
4,228
$633 million
not listed
2011
3,849
$625 million
not listed
2010
4,217
$565 million
not listed
2009
4,334
$592 million
not listed
If you had money in one of these plans
If your plan was merged, your account moved with it. Follow the link on the plan to the plan it went into, and contact that one.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.
What these numbers are
They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.